TMS320DM355
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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
TMS320DM355
Digital Media System-on-Chip (DMSoC)
Check for Samples: TMS320DM355
1 TMS320DM355 Digital Media System-on-Chip (DMSoC)
1.1
Features
123
• Highlights
– High-Performance Digital Media
System-on-Chip (DMSoC)
– Up to 270-MHz ARM926EJ-S™ Clock Rate
– MPEG4/JPEG Coprocessor Supports
• Up to 720p MPEG4 SP
• Up to 50M Pixels per Second JPEG
– Video Processing Subsystem
• Hardware IPIPE for Real-Time Image
Processing
• Up to 14-bit CCD/CMOS Digital Interface
• Histogram Module
• Resize Image 1/16x to 8x
• Hardware On-Screen Display
• Supports digital HDTV (720p/1080i) output
for connection to external encoder
– Peripherals include DDR and mDDR SDRAM,
2 MMC/SD/SDIO and SmartMedia Flash Card
Interfaces, USB 2.0, 3 UARTs and 3 SPIs
– Configurable Power-Saving Modes
– On-Chip ARM ROM Bootloader (RBL) to Boot
From NAND Flash, MMC/SD, or UART
– Extended Temperature 135- and 216-MHz
Devices are Available
– 3.3-V and 1.8-V I/O, 1.3-V Core
– Debug Interface Support
– 337-Pin Ball Grid Array at 65 nm Process
Technology
• High-Performance Digital Media
System-on-Chip (DMSoC)
– 135-, 216-, and 270-MHz ARM926EJ-S™
Clock Rate
– Fully Software-Compatible With ARM9™
– Extended temperature support for 135- and
216-MHz devices
• ARM926EJ-S Core
– Support for 32-Bit and 16-Bit (Thumb Mode)
Instruction Sets
– DSP Instruction Extensions and Single Cycle
MAC
•
•
•
•
– ARM® Jazelle® Technology
– EmbeddedICE-RT™ Logic for Real-Time
Debug
ARM9 Memory Architecture
– 16K-Byte Instruction Cache
– 8K-Byte Data Cache
– 32K-Byte RAM
– 8K-Byte ROM
– Little Endian
MPEG4/JPEG Coprocessor
– Fixed Function Coprocessor Supports:
• MPEG4 SP Codec at HD (720p), D1, VGA,
SIF
• JPEG Codec up to 50M Pixels per Second
Video Processing Subsystem
– Front End Provides:
• Hardware IPIPE for Real-Time Image
Processing
• Up to 14-bit CCD/CMOS Digital Interface
• 16-/8-bit Generic YcBcR-4:2 Interface
(BT.601)
• 10-/8-bit CCIR6565/BT655 Interface
• Up to 75-MHz Pixel Clock
• Histogram Module
• Resize Engine
– Resize Images From 1/16x to 8x
– Separate Horizontal/Vertical Control
– Two Simultaneous Output Paths
– Back End Provides:
• Hardware On-Screen Display (OSD)
• Composite NTSC/PAL video encoder
output
• 8-/16-bit YCC and Up to 18-Bit RGB666
Digital Output
• BT.601/BT.656 Digital YCbCr 4:2:2
(8-/16-Bit) Interface
• Supports digital HDTV (720p/1080i) output
for connection to external encoder
External Memory Interfaces (EMIFs)
– DDR2 and mDDR SDRAM 16-bit wide EMIF
1
2
3
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Windows is a trademark of Microsoft.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2010, Texas Instruments Incorporated
TMS320DM355
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
•
•
•
•
•
•
•
•
•
2
With 256 MByte Address Space (1.8-V I/O)
– Asynchronous16-/8-bit Wide EMIF (AEMIF)
• Flash Memory Interfaces
– NAND (8-/16-bit Wide Data)
– OneNAND(16-bit Wide Data)
Flash Card Interfaces
– Two Multimedia Card (MMC) / Secure Digital
(SD/SDIO)
– SmartMedia
Enhanced Direct-Memory-Access (EDMA)
Controller (64 Independent Channels)
USB Port with Integrated 2.0 High-Speed PHY
that Supports
– USB 2.0 Full and High-Speed Device
– USB 2.0 Low, Full, and High-Speed Host
Three 64-Bit General-Purpose Timers (each
configurable as two 32-bit timers)
One 64-Bit Watch Dog Timer
Three UARTs (One fast UART with RTS and
CTS Flow Control)
Three Serial Port Interfaces (SPI) each with two
Chip-Selects
One Master/Slave Inter-Integrated Circuit (I2C)
Bus®
Two Audio Serial Port (ASP)
– I2S and TDM I2S
– AC97 Audio Codec Interface
www.ti.com
•
•
•
•
•
•
•
•
•
•
•
•
– S/PDIF via Software
– Standard Voice Codec Interface (AIC12)
– SPI Protocol (Master Mode Only)
Four Pulse Width Modulator (PWM) Outputs
Four RTO (Real Time Out) Outputs
Up to 104 General-Purpose I/O (GPIO) Pins
(Multiplexed with Other Device Functions)
On-Chip ARM ROM Bootloader (RBL) to Boot
From NAND Flash (with SPI EEPROM Boot
option), MMC/SD, or UART
Configurable Power-Saving Modes
Crystal or External Clock Input (typically
24 MHz or 36 MHz)
Flexible PLL Clock Generators
Debug Interface Support
– IEEE-1149.1 (JTAG)
Boundary-Scan-Compatible
– ETB™ (Embedded Trace Buffer™) with
4K-Bytes Trace Buffer memory
– Device Revision ID Readable by ARM
337-Pin Ball Grid Array (BGA) Package
(ZCE Suffix), 0.65-mm Ball Pitch
90nm Process Technology
3.3-V and 1.8-V I/O, 1.3-V Internal
Community Resources
– TI E2E Community
– TI Embedded Processors Wiki
TMS320DM355 Digital Media System-on-Chip (DMSoC)
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1.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Description
The DM355 is a highly integrated, programmable platform for digital still camera, digital photo frames, IP
security cameras, 4-channel digital video recorders, video door bell application, and other low cost
portable digital video applications. Designed to offer portable video designers and manufacturers the
ability to produce affordable portable digital video solutions with high picture quality, the DM355 combines
high performance MPEG4 HD (720p) codecs and JPEG codecs up to 50M pixels per second, high quality,
and low power consumption at a very low price point. The DM355 also enables seamless interface to most
additional external devices required for a complete digital camera implementation. The interface is flexible
enough to support various types of CCD and CMOS sensors, signal conditioning circuits, power
management, DDR/mDDR memory, SRAM, NAND, shutter, Iris and auto-focus motor controls, etc.
The DM355 processor core is an ARM926EJ-S RISC processor. The ARM926EJ-S is a 32-bit processor
core that performs 32-bit and 16-bit instructions and processes 32-bit, 16-bit, and 8-bit data. The core
uses pipelining so that all parts of the processor and memory system can operate continuously. The ARM
core incorporates:
• A coprocessor 15 (CP15) and protection module
• Data and program Memory Management Units (MMUs) with table look-aside buffers.
• Separate 16K-byte instruction and 8K-byte data caches. Both are four-way associative with virtual
index virtual tag (VIVT).
DM355 performance is enhanced by its MPEG4/JPEG coprocessor. The MPEG4/JPEG coprocessor
performs the computational operations required for image processing; JPEG compression and MPEG4
video and imaging standard. The MPEG4/JPEG coprocessor supports MPEG4 SP at HD (720p), D1,
VGA, SIF encode/decode resolutions and JPEG encode/decode up to 50M pixels per second.
The DM355 device has a Video Processing Subsystem (VPSS) with two configurable video/imaging
peripherals:
• A Video Processing Front-End (VPFE)
• A Video Processing Back-End (VPBE)
The VPFE port provides an interface for CCD/CMOS imager modules and video decoders. The VPBE
provides hardware On Screen Display (OSD) support and composite NTSC/PAL and digital LCD output.
The DM355 peripheral set includes:
• An inter-integrated circuit (I2C) Bus interface
• Two audio serial ports (ASP)
• Three 64-bit general-purpose timers each configurable as two independent 32-bit timers
• A 64-bit watchdog timer
• Up to 104-pins of general-purpose input/output (GPIO) with programmable interrupt/event generation
modes, multiplexed with other peripherals
• Three UARTs with hardware handshaking support on one UART
• Three serial port Interfaces (SPI)
• Four pulse width modulator (PWM) peripherals
• Four real time out (RTO) outputs
• Two Multi-Media Card / Secure Digital (MMC/SD/SDIO) interfaces
• Wireless interfaces (Bluetooth, WLAN, WUSB) through SDIO
• A USB 2.0 full and high-speed device and host interface
• Two external memory interfaces:
– An asynchronous external memory interface (AEMIF) for slower memories/peripherals such as
NAND and OneNAND,
– A high speed synchronous memory interface for DDR2/mDDR.
Copyright © 2007–2010, Texas Instruments Incorporated
TMS320DM355 Digital Media System-on-Chip (DMSoC)
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For software development support the DM355 has a complete set of ARM development tools which
include: C compilers, assembly optimizers to simplify programming and scheduling, and a Windows™
debugger interface for visibility into source code execution.
4
TMS320DM355 Digital Media System-on-Chip (DMSoC)
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1.3
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Functional Block Diagram
CCDC
CCD
C
CCD/
CMOS
Module
Digital RGB/YUV
10b
DAC
Enhanced
Enhanced DMA
64 channels
channels
3PCC /TC
(100 MHz
er
c
Composite video
IPIPE
H3A
3A
VPFE
Buffer Logic
Figure 1-1 shows the functional block diagram of the DM355 device.
Vide
Video
OS
OSD
Encod
Encoder
o
D
er
VPBE
VPSS
DMA
DDR
DDR
controller
MH
DL
DLL/
PHY
16 bit
DDR2/mDDR 16
z)
/ DMA/Data
Data and configuration
bus bus
and configuration
ARM
ARM
INTC
Enhanced
MPEG4/JPEG
Coprocessor
channels
3PCC /TC
(100 MHz
ARM
ARM926EJ-S_Z8
USB 2.0
USB2.0
PHY
Nand /
Nand/SM/
Async/One Nand
(AEMIF)
ASP (2x)
z)
cach
l-cache
I-16KB
16 eK
B
cach
B
D-cache
D- 8K
8KB
e
RA
RAM
32KB
32MK
BB
RO
ROM
8MK
8KB
MMC/SD (x2)
Speaker
microphone
SPI I/F (x3)
UART (x3)
I2C
Timer/
WDT (x4 - 64)
GIO
Clocks
PWM (x4)
RTO
64bit DMA/Data Bus
32bit Configuration Bus
JTA
JTAG
I/F
JTAG
CLOCK
CLOCK
ctrl
PLL
PLLs
Peripherals
24 MHz
27 MHz
or 36 MHz (optional)
Figure 1-1. Functional Block Diagram
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TMS320DM355 Digital Media System-on-Chip (DMSoC)
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1
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TMS320DM355 Digital Media System-on-Chip
(DMSoC) ................................................... 1
Features .............................................. 1
1.1
........................................... 3
1.3
Functional Block Diagram ............................ 5
Revision History .............................................. 7
2 Device Overview ........................................ 8
2.1
Device Characteristics ............................... 8
2.2
Memory Map Summary .............................. 9
2.3
Pin Assignments .................................... 11
2.4
Pin Functions ....................................... 15
1.2
Description
2.5
.............................
GPIO ................................................
2.7
DDR Memory Interface
2.8
2.9
...............
2.11 Audio Interfaces ....................................
2.12 UART Interface .....................................
2.13 I2C Interface ........................................
2.14 Serial Interface .....................................
2.15 Clock Interface ......................................
2.16 Real Time Output (RTO) Interface .................
2.17 Pulse Width Modulator (PWM) Interface ...........
2.18 System Configuration Interface .....................
2.19 Emulation ...........................................
2.20 Pin List ..............................................
2.21 Device Support .....................................
Detailed Device Description .........................
3.1
ARM Subsystem Overview .........................
3.2
ARM926EJ-S RISC CPU ...........................
3.3
Memory Mapping ...................................
3.4
ARM Interrupt Controller (AINTC) ..................
3.5
Device Clocking ....................................
3.6
PLL Controller (PLLC) ..............................
3.7
Power and Sleep Controller (PSC) .................
Universal Serial Bus (USB) Interface
82
Pin Multiplexing
83
84
85
89
94
95
98
99
Absolute Maximum Ratings Over Operating Case
Temperature Range
(Unless Otherwise Noted) ................................. 99
4.2
4.3
5
24
30
31
Recommended Operating Conditions ............. 100
Electrical Characteristics Over Recommended
Ranges of Supply Voltage and Operating Case
Temperature (Unless Otherwise Noted) .......... 101
DM355 Peripheral Information and Electrical
Specifications ......................................... 102
5.1
Multi-Media Card/Secure Digital (MMC/SD)
Interfaces ........................................... 29
2.10
6
22
System Control Module
3.9
4.1
Image Data Output - Video Processing Back End
(VPBE) .............................................. 17
Asynchronous External Memory Interface (AEMIF)
...................................................... 20
2.6
3
4
.............................
.....................................
3.10 Device Reset .......................................
3.11 Default Device Configurations ......................
3.12 Device Boot Modes .................................
3.13 Power Management ................................
3.14 64-Bit Crossbar Architecture .......................
3.15 MPEG4/JPEG Overview ............................
Device Operating Conditions .......................
3.8
Parameter Information Device-Specific Information
5.2
..................................................... 102
Recommended Clock and Control Signal Transition
Behavior ........................................... 103
....................................
..............................................
Oscillators and Clocks ............................
General-Purpose Input/Output (GPIO) ............
External Memory Interface (EMIF) ................
MMC/SD ...........................................
5.3
Power Supplies
103
32
5.4
Reset
105
33
5.5
33
5.6
34
5.7
35
5.8
5.9
35
5.10
5.11
36
37
38
57
61
61
62
64
65
67
78
82
6
106
111
113
120
Video Processing Sub-System (VPSS) Overview
.....................................................
122
USB 2.0 ........................................... 134
Universal Asynchronous Receiver/Transmitter
(UART) ............................................ 136
.........................
......................
5.14 Audio Serial Port (ASP) ...........................
5.15 Timer ..............................................
5.16 Pulse Width Modulator (PWM) ....................
5.17 Real Time Out (RTO) .............................
5.18 IEEE 1149.1 JTAG ................................
Mechanical Data ......................................
6.1
Thermal Data for ZCE .............................
6.2
Packaging Information ............................
5.12
Serial Port Interface (SPI)
138
5.13
Inter-Integrated Circuit (I2C)
141
Contents
144
152
153
155
156
159
159
159
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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
This data sheet revision history highlights the technical changes made to the SPRS463F device-specific
data sheet to make it an SPRS463G revision.
Scope: Applicable updates to the DM35x DMSoC device family, specifically relating to the
TMS320DM355 device, have been incorporated.
Note: DM355 27J supports 198MHz max DDR.
Revision G Updates
ADDS/CHANGES/DELETES
Section 1.1
Changed Feature bullet from NAND Flash to NAND Flash (with SPI EEPROM Boot option).
Section 2.4
Table 2-9 and Table 2-11
•
Added "Used to drive boot status LED signal (active low) in ROM boot modes." to pin number
P16.
•
Deleted "Used to drive boot status LED signal (active low) in ROM boot modes." from pin
number V19.
Section 2.21.2
Updated Figure 2-5, Device Nomenclature.
Section 2.20
Updated Table 2-23, changed Reset State values.
Section 3.2.4
Changed NAND to NAND (with SPI EEPROM Boot option).
Section 3.5
Table 3-4, Table 3-10, and Table 3-13:
•
Updated/Changed "(/2 or /1 programmable)" to "POSTDIV" and added "(/2 or /1
programmable)" to 2nd row
Section 3.5.4
•
•
Table 3-21
Updated BTSEL Function and NAND configuration in table.
Table 3-22
Updated table:
•
Changed BTSEL[1:0] = 00 – Enable (NAND) to BTSEL[1:0] = 00 – Enable (NAND, SPI)
Added Section 3.5.4.1.3.
Added Section 3.5.4.2.3.
Changed SPI0 Module State from SyncRst to:
•
BTSEL[1:0] = 00 – Enable (NAND, SPI)
•
BTSEL[1:0] = 01 – SyncRst (OneNAND)
•
BTSEL[1:0] = 10 – Enable (MMC/SD)
•
BTSEL[1:0] = 11 – Enable (UART)
Section 3.12
Added Section 3.12.2, "RBL NAND Boot Process" and associated Standard and Compatibility
mode references throughout the document.
Section 3.12.1
Added ARM ROM Boot - SPI boot in NAND Mode bullet and sub-bullets.
Figure 3-6
Added SPI Flash to Diagram.
Section 4.2
Added last row to table including table note.
Section 4.3
Updated/Changed the following values in Section 4.3:
•
IOH MAX value from "-100 mA" to "-4000 mA"
•
IOZ TYP (IPU disabled) value from "±10 µA" to "±20 µA"
•
IOZ TYP (IPU enabled) added value of ±100 µA"
Added "Test Conditions" for IOH and IOL parameters
Table 5-5
Changed parameter 4 on table and added table note.
Table 5-6
Changed parameter 4 on table and added table note.
Table 5-45
Changed parameter 4 on table and added table note.
Section 5.7.1.3
Added table note to Table 5-14.
Contents
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2 Device Overview
2.1
Device Characteristics
Table 2-1 provides an overview of the DMSoC. The table shows significant features of the device,
including the peripherals, capacity of on-chip RAM, ARM operating frequency, the package type with pin
count, etc.
Table 2-1. Characteristics of the Processor
HARDWARE FEATURES
DDR2 / mDDR (16-bit bus width)
Asynchronous EMIF (AEMIF)
Asynchronous (8/16-bit bus width)
RAM, Flash (NAND, OneNAND)
Flash Card Interfaces
Peripherals
Not all peripherals pins are
available at the same time
(For more detail, see the
Device Configuration
section).
64 independent DMA channels
Eight EDMA channels
Timers
Three 64-Bit General Purpose (each
configurable as two separate 32-bit
timers)
One 64-Bit Watch Dog
UART
Three (one with RTS and CTS flow
control)
SPI
Three (each supports two slave
devices)
I2C
One (Master/Slave)
Audio Serial Port [ASP]
Two ASP
General-Purpose Input/Output Port
Up to 104
Configurable Video Ports
ARM
16-KB I-cache, 8-KB D-cache,
32-KB RAM, 8-KB ROM
On-Chip CPU Memory
Organization
JTAG BSDL_ID
JTAGID register (address location: 0x01C4 0028)
CPU Frequency (Maximum)
MHz
Core (V)
(1)
, and 270 MHz
1.3 V
I/O (V)
3.3 V, 1.8 V
Reference frequency options
Configurable PLL controller
BGA Package
13 x 13 mm
24 MHz (typical), 36 MHz
PLL bypass, programmable PLL
337-Pin BGA (ZCE)
Process Technology
8
0x0B73B01F
ARM 135, 216
PLL Options
(1)
(2)
Four outputs
One Input (VPFE)
One Output (VPBE)
High, Full Speed Device
High, Full, Low Speed Host
USB 2.0
Product Status (2)
Two MMC/SD
One SmartMedia/xD
EDMA
Pulse width modulator (PWM)
Voltage
DM355
DDR2 / mDDR Memory Controller
90 nm
Product Preview (PP),
Advance Information (AI),
or Production Data (PD)
PD
Extended temperature supported for A216 and A135 devices.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Device Overview
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2.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Memory Map Summary
Table 2-3 shows the memory map address ranges of the device. Table 2-3 depicts the expanded map of
the Configuration Space (0x01C0 0000 through 0x01FF FFFF). The device has multiple on-chip memories
associated with its processor and various subsystems. To help simplify software development a unified
memory map is used where possible to maintain a consistent view of device resources across all bus
masters. The bus masters are the ARM, EDMA, USB, and VPSS.
Table 2-2. DM355 Memory Map
Start Address
End Address
Size (Bytes)
ARM
Mem Map
EDMA
Mem Map
USB
Mem Map
0x0000 0000
0x0000 3FFF
16K
ARM RAM0
(Instruction)
0x0000 4000
0x0000 7FFF
16K
ARM RAM1
(Instruction)
Reserved
Reserved
0x0000 8000
0x0000 FFFF
32K
ARM ROM
(Instruction)
- only 8K used
0x0001 0000
0x0001 3FFF
16K
0x0001 4000
0x0001 7FFF
16K
ARM RAM0 (Data)
ARM RAM0
ARM RAM0
ARM RAM1 (Data)
ARM RAM1
0x0001 8000
0x0001 FFFF
ARM RAM1
32K
ARM ROM (Data)
- only 8K used
ARM ROM
ARM ROM
0x0002 0000
0x0010 0000
0x000F FFFF
896K
Reserved
0x01BB FFFF
26M
0x01BC 0000
0x01BC 0FFF
4K
0x01BC 1000
0x01BC 17FF
2K
ARM ETB Reg
0x01BC 1800
0x01BC 18FF
256
ARM IceCrusher
0x01BC 1900
0x01BC FFFF
59136
Reserved
0x01BD 0000
0x01BF FFFF
192K
0x01C0 0000
0x01FF FFFF
4M
0x0200 0000
0x09FF FFFF
128M
0x0A00 0000
0x11EF FFFF
127M - 16K
0x11F0 0000
0x11F1 FFFF
128K
0x11F2 0000
0x1FFF FFFF
141M-64K
0x2000 0000
0x2000 7FFF
32K
0x2000 8000
0x41FF FFFF
544M-32K
0x4200 0000
0x49FF FFFF
128M
0x4A00 0000
0x7FFF FFFF
864M
0x8000 0000
0x8FFF FFFF
0x9000 0000
0xFFFF FFFF
VPSS
Mem Map
ARM ETB Mem
Reserved
Reserved
CFG Bus
Peripherals
CFG Bus
Peripherals
Reserved
ASYNC EMIF (Data) ASYNC EMIF (Data)
Reserved
Reserved
DDR EMIF Control
Regs
DDR EMIF Control
Regs
Reserved
Reserved
Reserved
256M
DDR EMIF
DDR EMIF
DDR EMIF
DDR EMIF
1792M
Reserved
Reserved
Reserved
Reserved
Reserved
Table 2-3. DM355 ARM Configuration Bus Access to Peripherals
Address
Accessibility
Region
Start
End
Size
ARM
EDMA
EDMA CC
0x01C0 0000
0x01C0 FFFF
64K
√
√
EDMA TC0
0x01C1 0000
0x01C1 03FF
1K
√
√
EDMA TC1
0x01C1 0400
0x01C1 07FF
1K
√
√
Reserved
0x01C1 0800
0x01C1 9FFF
38K
√
√
Reserved
0x01C1 A000
0x01C1 FFFF
24K
√
√
UART0
0x01C2 0000
0x01C2 03FF
1K
√
√
Device Overview
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Table 2-3. DM355 ARM Configuration Bus Access to Peripherals (continued)
Address
Accessibility
UART1
0x01C2 0400
0x01C2 07FF
1K
√
√
Timer4/5
0x01C2 0800
0x01C2 0BFF
1K
√
√
Real-time out
0x01C2 0C00
0x01C2 0FFF
1K
√
√
I2C
0x01C2 1000
0x01C2 13FF
1K
√
√
Timer0/1
0x01C2 1400
0x01C2 17FF
1K
√
√
Timer2/3
0x01C2 1800
0x01C2 1BFF
1K
√
√
WatchDog Timer
0x01C2 1C00
0x01C2 1FFF
1K
√
√
PWM0
0x01C2 2000
0x01C2 23FF
1K
√
√
PWM1
0x01C2 2400
0x01C2 27FF
1K
√
√
PWM2
0x01C2 2800
0x01C2 2BFF
1K
√
√
PWM3
0x01C2 2C00
0x01C2 2FFF
1K
√
√
System Module
0x01C4 0000
0x01C4 07FF
2K
√
√
PLL Controller 0
0x01C4 0800
0x01C4 0BFF
1K
√
√
PLL Controller 1
0x01C4 0C00
0x01C4 0FFF
1K
√
√
Power/Sleep Controller
0x01C4 1000
0x01C4 1FFF
4K
√
√
Reserved
0x01C4 2000
0x01C4 7FFF
24K
√
√
ARM Interrupt Controller
0x01C4 8000
0x01C4 83FF
1K
√
√
Reserved
0x01C4 8400
0x01C6 3FFF
111K
√
√
USB OTG 2.0 Regs / RAM
0x01C6 4000
0x01C6 5FFF
8K
√
√
SPI0
0x01C6 6000
0x01C6 67FF
2K
√
√
SPI1
0x01C6 6800
0x01C6 6FFF
2K
√
√
GPIO
0x01C6 7000
0x01C6 77FF
2K
√
√
SPI2
0x01C6 7800
0x01C6 FFFF
2K
√
√
VPSS Subsystem
0x01C7 0000
0x01C7 FFFF
64K
√
√
VPSS Clock Control
0x01C7 0000
0x01C7 007F
128
√
√
Hardware 3A
0x01C7 0080
0x01C7 00FF
128
√
√
Image Pipe (IPIPE) Interface
0x01C7 0100
0x01C7 01FF
256
√
√
On Screen Display
0x01C7 0200
0x01C7 02FF
256
√
√
Reserved
0x01C7 0300
0x01C7 03FF
256
√
√
Video Encoder
0x01C7 0400
0x01C7 05FF
512
√
√
10
CCD Controller
0x01C7 0600
0x01C7 07FF
256
√
√
VPSS Buffer Logic
0x01C7 0800
0x01C7 08FF
256
√
√
Reserved
0x01C7 0900
0x01C7 09FF
256
√
√
Image Pipe (IPIPE)
0x01C7 1000
0x01C7 3FFF
12K
√
√
Reserved
0x01C7 4000
0x01CD FFFF
432K
√
√
Multimedia / SD 1
0x01E0 0000
0x01E0 1FFF
8K
√
√
ASP0
0x01E0 2000
0x01E0 3FFF
8K
√
√
ASP1
0x01E0 4000
0x01E0 5FFF
8K
√
√
UART2
0x01E0 6000
0x01E0 63FF
1K
√
√
Reserved
0x01E0 6400
0x01E0 FFFF
39K
√
√
ASYNC EMIF Control
0x01E1 0000
0x01E1 0FFF
4K
√
√
Multimedia / SD 0
0x01E1 1000
0x01E1 FFFF
60K
√
√
Reserved
0x01E2 0000
0x01FF FFFF
1792K
√
√
ASYNC EMIF Data (CE0)
0x0200 0000
0x03FF FFFF
32M
√
√
ASYNC EMIF Data (CE1)
0x0400 0000
0x05FF FFFF
32M
√
√
Reserved
0x0600 0000
0x09FF FFFF
64M
√
√
Reserved
0x0A00 0000
0x0BFF FFFF
32M
√
√
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Table 2-3. DM355 ARM Configuration Bus Access to Peripherals (continued)
Address
Reserved
2.3
0x0C00 0000
Accessibility
0x0FFF FFFF
√
64M
√
Pin Assignments
Extensive use of pin multiplexing is used to accommodate the largest number of peripheral functions in
the smallest possible package. Pin multiplexing is controlled using a combination of hardware
configuration at device reset and software programmable register settings.
2.3.1
Pin Map (Bottom View)
Figure 2-1 through Figure 2-4 show the pin assignments in four quadrants (A, B, C, and D). Note that
micro-vias are not required. Contact your TI representative for routing recommendations.
J
RSV01
VSS
CIN0
CIN3
CIN2
VSS
VREF
VDDA33_USB
VSSA_PLL2
H
VSS
VSS
VCLK
FIELD
LCD_OE
VSS
VDDA13_USB
NC
VDDA_PLL2
G
VFB
VSS
EXTCLK
VSYNC
CVDD
VDD
VSS
F
TVOUT
IBIAS
COUT1
COUT0
HSYNC
VDD_VOUT
VDD_VOUT
VDD_VOUT
VDD
E
IOUT
VSS
COUT3
COUT2
USB_VBUS
VSS_USB
EMU1
EMU0
TDO
D
VSS
COUT6
COUT4
USB_ID
VSS_USB
TMS
TDI
C
COUT5
COUT7
YOUT7
CVDD
USB_DRV
VBUS
VDDD13_USB
USB_R1
VSS_USB_REF
TRST
B
YOUT0
YOUT3
YOUT4
YOUT5
VSS
VDDA33_USB_
VSS_USB
VSS
MXO1
A
CVDD
YOUT1
YOUT2
YOUT6
VSS
USB_DM
USB_DP
VSS
MXI1
1
2
3
4
5
6
7
8
9
PLL
Figure 2-1. Pin Map [Quadrant A]
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1
2
3
4
5
6
7
8
9
W
VSS
DDR_A02
DDR_A03
DDR_A05
DDR_A08
DDR_A09
DDR_A11
DDR_CLK
DDR_CLK
V
VSS
DDR_A00
DDR_A01
DDR_A04
DDR_A07
DDR_A10
DDR_A12
DDR_BA[2]
DDR_CAS
U
VSS
VSS
VSS
VSS
DDR_A06
DDR_A13
DDR_BA[1]
DDR_BA[0]
VSS
T
MXO2
VSS
PCLK
VSS
DDR_RAS
DDR_CS
DDR_ZN
R
MXI2
VSS
YIN3
CAM_VD
CAM_WEN_
FIELD
VSS
CVDD
CVDD
VDD_DDR
P
VSS_MX2
YIN1
YIN4
YIN2
YIN0
VDD_VIN
VDD_VIN
VDD_VIN
VDD_DDR
N
VSS
RSV05
CIN7
CAM_HD
CVDD
VSS
VSS
M
RSV04
RSV06
CIN5
YIN6
YIN5
VSS
VSS
VSS
VDD_DDR
L
RSV03
VSS
CIN1
CIN4
YIN7
VDD
VDDA18V_DAC
VSS_DAC
VSS
K
RSV02
RSV07
VSS
CIN6
CVDD
VDD
VSS
Figure 2-2. Pin Map [Quadrant B]
12
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10
11
12
13
14
15
16
17
18
19
DDR_WE
DDR_DQ01
DDR_DQ05
DDR_DQ07
DDR_DQ10
DDR_DQ11
DDR_DQ13
DDR_DQ15
DDR_
DQGATE0
CVDD
W
DDR_CKE
DDR_DQ00
DDR_DQS[0]
DDR_DQ06
DDR_DQ09
DDR_DQS[1]
DDR_DQ14
DDR_
DQGATE1
VSS
EM_A13
V
DDR_VREF
DDR_DQ02
DDR_DQ04
DDR_DQ08
VSS
DDR_DQM[1]
DDR_DQ12
VSS
UART0_RXD
EM_A12
U
DDR_DQ03
DDR_DQM[0]
VDD_DDR
VSS
CVDD
UART0_TXD
EM_A08
T
VDDA33_DDRDLL
VSSA_DLL
VDD_DDR
I2C_SDA
I2C_SCL
UART1_RXD
EM_A11
UART1_TXD
EM_A10
EM_A05
R
VDD_DDR
VDD_DDR
VDD_DDR
VDD_DDR
VDD_DDR
EM_A04
EM_A07
EM_A09
EM_A06
EM_BA1
P
VDD
VDD
VSS
EM_A02
EM_A01
EM_A03
EM_BA0
N
VDD
VDD
VDD
VDD
VSS
EM_D13
EM_A00
VSS
EM_D15
EM_D14
M
VSS
CVDD
CVDD
VDD
VSS
EM_D04
EM_D08
EM_D11
EM_D12
EM_D10
L
VSS
CVDD
CVDD
VSS
VDD
EM_D06
EM_D09
EM_D07
K
Figure 2-3. Pin Map [Quadrant C]
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VSS
CVDD
CVDD
CVDD
VSS
EM_WE
EM_CE0
EM_D01
EM_D03
EM_D05
J
CVDD
VSS
VSSA_PLL1
CVDD
VSS
ASP0_DX
EM_ADV
CVDD
EM_D00
EM_D02
H
CVDD
VDDA_PLL1
VDD
GIO003
ASP0_FSX
EM_WAIT
EM_CE1
G
VDD
VDD
VDD
VDD
VDD
GIO002
ASP0_FSR
ASP0_CLKR
ASP0_CLKX
EM_OE
F
TCK
RTCK
SPI1_SDO
SPI1_
SDENA[0]
GIO001
VSS
ASP1_FSX
ASP1_FSR
ASP0_DR
EM_CLK
E
RESET
CLKOUT1
MMCSD0_
DATA1
GIO005
ASP1_CLKS
ASP1_CLKR
ASP1_CLKX
D
VSS_MX1
CLKOUT3
SPI0_SCLK
SPI1_SCLK
GIO000
GIO007
ASP1_DX
ASP1_DR
C
VSS
SPI0_SDO
SPI0_
SDENA[0]
MMCSD0_
DATA2
MMCSD0_
DATA0
MMCSD1_
DATA1
MMCSD1_
DATA3
GIO004
GIO006
CVDD
B
CVDD
CLKOUT2
SPI0_SDI
SPI1_SDI
MMCSD0_
DATA3
MMCSD0_
CLK
MMCSD1_
DATA2
MMCSD1_
CMD
MMCSD1_
DATA0
VSS
A
10
11
12
13
14
15
16
17
18
19
MMCSD0_CMD MMCSD1_CLK
Figure 2-4. Pin Map [Quadrant D]
14
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2.4
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Pin Functions
The pin functions tables (Table 2-4 through Table 2-22) identify the external signal names, the associated
pin (ball) numbers along with the mechanical package designator, the pin type, whether the pin has any
internal pullup or pulldown resistors, and a functional pin description. For more detailed information on
device configuration, peripheral selection, multiplexed/shared pins, and debugging considerations, see
Section 3. For the list of all pin in chronological order see Section 2.20
2.4.1
Image Data Input - Video Processing Front End
The CCD Controller module in the Video Processing Front End has an external signal interface for image
data input. It supports YUV (YC) inputs as well as Bayer RGB and complementary input signals (I.e.,
image data input).
The definition of the CCD controller data input signals depend on the input mode selected.
• In 16-bit YCbCr mode, the Cb and Cr signals are multiplexed on the Cl signals and the order is
configurable (i.e., Cb first or Cr first).
• In 8-bit YCbCr mode, the Y, Cb, and Cr signals are multiplexed and not only is the order selectable,
but also the half of the bus used.
Table 2-4. CCD Controller Signals for Each Input Mode
PIN NAME
CCD
Cl7
Cl6
16-BIT YCbCr
8-BIT YCbCr
Cb7,Cr7
Y7,Cb7,Cr7
Cb6,Cr6
Y6,Cb6,Cr6
Cl5
CCD13
Cb5,Cr5
Y5,Cb5,Cr5
Cl4
CCD12
Cb4,Cr4
Y4,Cb4,Cr4
Cl3
CCD11
Cb3,Cr3
Y3,Cb3,Cr3
Cl2
CCD10
Cb2,Cr2
Y2,Cb2,Cr2
Cl1
CCD9
Cb1,Cr1
Y1,Cb1,Cr1
Cl0
CCD8
Cb0,Cr0
Y0,Cb0,Cr0
Yl7
CCD7
Y7
Y7,Cb7,Cr7
Yl6
CCD6
Y6
Y6,Cb6,Cr6
Yl5
CCD5
Y5
Y5,Cb5,Cr5
Yl4
CCD4
Y4
Y4,Cb4,Cr4
Yl3
CCD3
Y3
Y3,Cb3,Cr3
Yl2
CCD2
Y2
Y2,Cb2,Cr2
Yl1
CCD1
Y1
Y1,Cb1,Cr1
Yl0
CCD0
Y0
Y0,Cb0,Cr0
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Table 2-5. CCD Controller/Video Input Terminal Functions
TERMINAL
NAME
NO.
CIN7/
GIO101/
SPI2_SCLK
CIN6/
GIO100/
SPI2_SDO
CIN5/
GIO099/
SPI2_SDEN
A[0]
CIN4/
GIO098/
SPI2_SDEN
A[1]
CIN3/
GIO097/
CIN2/
GIO096/
CIN1/
GIO095/
CIN0/
GIO094/
YIN7/
GIO093
YIN6/
GIO092
(1)
(2)
(3)
16
N3
K5
M3
L4
J4
J5
L3
J3
L5
M4
TYPE (1)
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
OTHER (2)
(3)
DESCRIPTION
PD
VDD_VIN
Standard CCD/CMOS input: NOT USED
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[07]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[07]
SPI: SPI2 Clock
GIO: GIO[101]
PD
VDD_VIN
Standard CCD/CMOS input: NOT USED
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[06]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[06]
SPI: SPI2 Data Out
GIO: GIO[100]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[13]
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[05]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[05]
SPI: SPI2 Chip Select
GIO: GIO[099]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[12]
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[04]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[04]
SPI: SPI2 Data In
GIO: GIO[098]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[11]
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[03]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[03]
GIO: GIO[097]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[10]
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[02]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[02]
GIO: GIO[097]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[09]
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[01]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[01]
GIO: GIO[095]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[08]
•
YCC 16-bit: Time multiplexed between chroma: CB/CR[00]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[00]
GIO: GIO[094]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[07]
•
YCC 16-bit: Time multiplexed between chroma: Y[07]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[07]
GIO: GIO[093]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[06]
•
YCC 16-bit: Time multiplexed between chroma: Y[06]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[06]
GIO: GIO[092]
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
PD = internal pull-down, PU = internal pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
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Table 2-5. CCD Controller/Video Input Terminal Functions (continued)
TERMINAL
NAME
NO.
YIN5/
GIO091
YIN4/
GIO090
YIN3/
GIO089
YIN2/
GIO088
YIN1/
GIO087
M5
P3
R3
P4
P2
TYPE (1)
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
OTHER (2)
(3)
DESCRIPTION
PD
VDD_VIN
Standard CCD/CMOS input: Raw[05]
•
YCC 16-bit: Time multiplexed between chroma: Y[05]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[05]
GIO: GIO[091]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[04]
•
YCC 16-bit: Time multiplexed between chroma: Y[04]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[04]
GIO: GIO[090]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[03]
•
YCC 16-bit: Time multiplexed between chroma: Y[03]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[03]
GIO: GIO[089]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[02]
•
YCC 16-bit: Time multiplexed between chroma: Y[02]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[02]
GIO: GIO[088]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[01]
•
YCC 16-bit: Time multiplexed between chroma: Y[01]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[01]
GIO: GIO[087]
YIN0/
GIO086
P5
I/O/Z
PD
VDD_VIN
Standard CCD/CMOS input: Raw[00]
•
YCC 16-bit: Time multiplexed between chroma: Y[00]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the upper channel. Y/CB/CR[00]
GIO: GIO[086]
CAM_HD/
GIO085
N5
I/O/Z
PD
VDD_VIN
Horizontal synchronization signal that can be either an input (slave mode) or an
output (master mode). Tells the CCDC when a new line starts.
GIO: GIO[085]
CAM_VD
GIO084
R4
I/O/Z
PD
VDD_VIN
Vertical synchronization signal that can be either an input (slave mode) or an output
(master mode). Tells the CCDC when a new frame starts.
GIO: GIO[084]
CAM_WEN
_FIELD\
GIO083
R5
I/O/Z
PD
VDD_VIN
Write enable input signal is used by external device (AFE/TG) to gate the DDR
output of the CCDC module. Alternately, the field identification input signal is used
by external device (AFE/TG) to indicate which of two frames is input to the CCDC
module for sensors with interlaced output. CCDC handles 1- or 2-field sensors in
hardware.
GIO: GIO[083]
PCLK/
GIO082
T3
I/O/Z
PD
VDD_VIN
Pixel clock input (strobe for lines C17 through Y10)
GIO: GIO[0082]
2.5
Image Data Output - Video Processing Back End (VPBE)
The Video Encoder/Digital LCD interface module in the video processing back end has an external signal
interface for digital image data output as described in Table 2-7 and Table 2-8.
The digital image data output signals support multiple functions / interfaces, depending on the display
mode selected. The following table describes these modes. Parallel RGB mode with more than RGB565
signals requires enabling pin multiplexing to support (i.e., for RGB666 mode).
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Table 2-6. Signals for VPBE Display Modes
18
PIN NAME
YCC16
YCC8/
REC656
PRGB
SRGB
HSYNC
GIO073
HSYNC
HSYNC
HSYNC
HSYNC
VSYNC
GIO072
VSYNC
VSYNC
VSYNC
VSYNC
LCD_OE
GIO071
As needed
As needed
As needed
As needed
FIELD
GIO070
R2
PWM3C
As needed
As needed
As needed
As needed
EXTCLK
GIO069
B2
PWM3D
As needed
As needed
As needed
As needed
VCLK
GIO068
VCLK
VCLK
VCLK
VCLK
YOUT7
Y7
Y7,Cb7,Cr7
R7
Data7
YOUT6
Y6
Y6,Cb6,Cr6
R6
Data6
YOUT5
Y5
Y5,Cb5,Cr5
R5
Data5
YOUT4
Y4
Y4,Cb4,Cr4
R4
Data4
YOUT3
Y3
Y3,Cb3,Cr3
R3
Data3
YOUT2
Y2
Y2,Cb2,Cr2
G7
Data2
YOUT1
Y1
Y1,Cb1,Cr1
G6
Data1
YOUT0
Y0
Y0,Cb0,Cr0
G5
Data0
COUT7
GIO081
PWM0
C7
LCD_AC
G4
LCD_AC
COUT6
GIO080
PWM1
C6
LCD_OE
G3
LCD_OE
COUT5
GIO079
PWM2A
RTO0
C5
BRIGHT
G2
BRIGHT
COUT4
GIO078
PWM2B
RTO1
C4
PWM
B7
PWM
COUT3
GIO077
PWM2C
RTO2
C3
CSYNC
B6
CSYNC
COUT2
GIO076
PWM2D
RTO3
C2
-
B5
-
COUT1
GIO075
PWM3A
C1
-
B4
-
COUT0
GIO074
PWM3B
C0
-
B3
-
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Table 2-7. Digital Video Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION (4)
NAME
NO.
YOUT7-R7
C3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT6-R6
A4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT5-R5
B4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT4-R4
B3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT3-R3
B2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT2-G7
A3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT1-G6
A2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
YOUT0-G5
B1
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
COUT7G4/GIO081
/PWM0
C2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[081] PWM0
COUT6-G3
/GIO080
/PWM1
D2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[080] PWM1
COUT5-G2
/ GIO079 /
PWM2A /
RTO0
C1
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[079] PWM2A RTO0
COUT4-B7 /
GIO078 /
PWM2B /
RTO1
D3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[078] PWM2B RTO1
COUT3-B6 /
GIO077 /
PWM2C /
RTO2
E3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[077] PWM2C RTO2
COUT2-B5 /
GIO076 /
PWM2D /
RTO3
E4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[076] PWM2D RTO3
COUT1-B4 /
GIO075 /
PWM3A
F3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
GIO: GIO[075]
PWM3A
COUT0-B3 /
GIO074 /
PWM3B
F4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function
GIO: GIO[074]
PWM3B
HSYNC /
GIO073
F5
I/O/Z
PD
VDD_VOUT
Video Encoder: Horizontal Sync
GIO: GIO[073]
VSYNC /
GIO072
G5
I/O/Z
PD
VDD_VOUT
Video Encoder: Vertical Sync
GIO: GIO[072]
FIELD /
GIO070 /
R2 /
PWM3C
H4
I/O/Z
VDD_VOUT
Video Encoder: Field identifier for interlaced display formats
GIO: GIO[070]
Digital Video Out: R2
PWM3C
EXTCLK /
GIO069 /
B2 /
PWM3D
G3
I/O/Z
VCLK /
GIO068
H3
I/O/Z
(1)
(2)
(3)
(4)
PD
VDD_VOUT
VDD_VOUT
Video Encoder: External clock input, used if clock rates > 27 MHz are needed, e.g.
74.25 MHz for HDTV digital output
GIO: GIO[069]
Digital Video Out: B2
PWM3D
Video Encoder: Video Output Clock
GIO: GIO[068]
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
To reduce EMI and reflections, depending on the trace length, approximately 22 Ω to 50 Ω damping resistors are recommend on the
following outputs placed near the DM355: YOUT(0-7),COUT(0-7), HSYNC,VSYNC,LCD_OE,FIELD,EXTCLK,VCLK. The trace lengths
should be minimized.
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Table 2-8. Analog Video Terminal Functions
TERMINAL
TYPE (1)
OTHER (2) DESCRIPTION
NAME
NO.
VREF
J7
A I/O/Z
Video DAC: Reference voltage output (0.45V, 0.1uF to GND). When the DAC is not
used, the VREF signal should be connected to VSS.
IOUT
E1
A I/O/Z
Video DAC: Pre video buffer DAC output (1000 ohm to VFB). When the DAC is not
used, the IOUT signal should be connected to VSS.
IBIAS
F2
A I/O/Z
Video DAC: External resistor (2550 Ohms to GND) connection for current bias
configuration. When the DAC is not used, the IBIAS signal should be connected to
VSS.
VFB
G1
A I/O/Z
Video DAC: Pre video buffer DAC output (1000 Ohms to IOUT, 1070 Ohms to
TVOUT). When the DAC is not used, the VFB signal should be connected to VSS.
TVOUT
F1
A I/O/Z
VDDA18_DAC
L7
PWR
Video DAC: Analog 1.8V power. When the DAC is not used, the VDDA18_DAC signal
should be connected to VSS.
VSSA_DAC
L8
GND
Video DAC: Analog 1.8V ground. When the DAC is not used, the VSSA_DAC signal
should be connected to VSS.
(1)
(2)
Video DAC: Analog Composite NTSC/PAL output (SeeFigure 5-31 andFigure 5-32 for
circuit connection). When the DAC is not used, the TVOUT signal should be left as a
No Connect or connected to VSS.
V
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal. Specifies the operating I/O supply
voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
2.6
Asynchronous External Memory Interface (AEMIF)
The Asynchronous External Memory Interface (AEMIF) signals support AEMIF, NAND, and OneNAND.
Table 2-9. Asynchronous EMIF/NAND/OneNAND Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
EM_A13/
GIO067/
BTSEL[1]
V19
I/O/Z
PD
VDD
Async EMIF: Address bus bit[13]
GIO: GIO[67]
System: BTSEL[1:0] sampled at power-on-reset to determine boot method.
EM_A12/
GIO066/
BTSEL[0]
U19
I/O/Z
PD
VDD
Async EMIF: Address bus bit[12]
GIO: GIO[66]
System: BTSEL[1:0] sampled at power-on-reset to determine boot method.
EM_A11/
GIO065/
AECFG[3]
R16
I/O/Z
PU
VDD
Async EMIF: Address bus bit[11]
GIO: GIO[65]
AECFG[3:0] sampled at power-on-reset to AECFG configuration. AECFG[3] sets
default for PinMux2_EM_D15_8: AEMIF default bus width (16 or 8 bits)
I/O/Z
PU
VDD
Async EMIF: Address bus bit[10]
GIO: GIO[64]
AECFG[3:0] sampled at power-on-reset to AECFG configuration. AECFG[2:1]
sets default for PinMux2_EM_BA0: AEMIF EM_BA0 definition (EM_BA0,
EM_A14, GIO[054], rsvd)
I/O/Z
PD
VDD
Async EMIF: Address bus bit[09]
GIO: GIO[63]
AECFG[3:0] sampled at power-on-reset to AECFG configuration. AECFG[2:1]
sets default for PinMux2_EM_BA0: AEMIF EM_BA0 definition (EM_BA0,
EM_A14, GIO[054], rsvd)
Async EMIF: Address bus bit[08]
GIO: GIO[62]
AECFG[0] sets default for:
•
PinMux2_EM_A0_BA1: AEMIF address width (OneNAND or NAND)
•
PinMux2_EM_A13_3: AEMIF address width (OneNAND or NAND)
Async EMIF: Address bus bit[07]
GIO: GIO[61]
Used to drive boot status LED signal (active low) in ROM boot modes.
EM_A10/
GIO064/
AECFG[2]
EM_A09/
GIO063/
AECFG[1]
R18
P17
EM_A08/
GIO062/
AECFG[0]
T19
I/O/Z
PU
VDD
EM_A07/
GIO061
P16
I/O/Z
VDD
(1)
(2)
(3)
20
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-9. Asynchronous EMIF/NAND/OneNAND Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
EM_A06/
GIO060
P18
I/O/Z
VDD
Async EMIF: Address bus bit[06]
GIO: GIO[60]
EM_A05/
GIO059
R19
I/O/Z
VDD
Async EMIF: Address bus bit[05]
GIO: GIO[59]
EM_A04/
GIO058
P15
I/O/Z
VDD
Async EMIF: Address bus bit[04]
GIO: GIO[58]
EM_A03/
GIO057
N18
I/O/Z
VDD
Async EMIF: Address bus bit[03]
GIO: GIO[57]
EM_A02/
N15
I/O/Z
VDD
Async EMIF: Address bus bit[02]
NAND/SM/xD: CLE - Command latch enable output
EM_A01/
N17
I/O/Z
VDD
Async EMIF: Address bus bit[01]
NAND/SM/xD: ALE - Address latch enable output
EM_A00/
GIO056
M16
I/O/Z
VDD
Async EMIF: Address bus bit[00]
GIO: GIO[56]
VDD
Async EMIF: Bank address 1 signal - 16-bit address:
•
In 16-bit mode, lowest address bit.
•
In 8-bit mode, second lowest address bit.
GIO: GIO[055]
EM_BA1/
GIO055
P19
I/O/Z
EM_BA0/
GIO054
EM_A14
N19
I/O/Z
VDD
Async EMIF: Bank address 0 signal - 8-bit address:
•
In 8-bit mode, lowest address bit. or can be used as an extra address line
(bit14) when using 16-bit memories.
GIO: GIO[054]
EM_D15/
GIO053
M18
I/O/Z
VDD
Async EMIF: Data bus bit 15
GIO: GIO[053]
EM_D14/
GIO052
M19
I/O/Z
VDD
Async EMIF: Data bus bit 14
GIO: GIO[052]
EM_D13/
GIO051
M15
I/O/Z
VDD
Async EMIF: Data bus bit 13
GIO: GIO[051]
EM_D12/
GIO050
L18
I/O/Z
VDD
Async EMIF: Data bus bit 12
GIO: GIO[050]
EM_D11/
GIO049
L17
I/O/Z
VDD
Async EMIF: Data bus bit 11
GIO: GIO[049]
EM_D10/
GIO048
L19
I/O/Z
VDD
Async EMIF: Data bus bit 10
GIO: GIO[048]
EM_D09/
GIO047
K18
I/O/Z
VDD
Async EMIF: Data bus bit 09
GIO: GIO[047]
EM_D08/
GIO046
L16
I/O/Z
VDD
Async EMIF: Data bus bit 08
GIO: GIO[046]
EM_D07/
GIO045
K19
I/O/Z
VDD
Async EMIF: Data bus bit 07
GIO: GIO[045]
EM_D06/
GIO044
K17
I/O/Z
VDD
Async EMIF: Data bus bit 06
GIO: GIO[044]
EM_D05/
GIO043
J19
I/O/Z
VDD
Async EMIF: Data bus bit 05
GIO: GIO[043]
EM_D04/
GIO042
L15
I/O/Z
VDD
Async EMIF: Data bus bit 04
GIO: GIO[042]
EM_D03/
GIO041
J18
I/O/Z
VDD
Async EMIF: Data bus bit 03
GIO: GIO[041]
EM_D02/
GIO040
H19
I/O/Z
VDD
Async EMIF: Data bus bit 02
GIO: GIO[040]
EM_D01/
GIO039
J17
I/O/Z
VDD
Async EMIF: Data bus bit 01
GIO: GIO[039]
EM_D00/
GIO038
H18
I/O/Z
VDD
Async EMIF: Data bus bit 00
GIO: GIO[038]
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Table 2-9. Asynchronous EMIF/NAND/OneNAND Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
EM_CE0/
GIO037
J16
I/O/Z
VDD
Async EMIF: Lowest numbered chip select. Can be programmed to be used for
standard asynchronous memories (example: flash), OneNAND, or NAND
memory. Used for the default boot and ROM boot modes.
GIO: GIO[037]
EM_CE1/
GIO036
G19
I/O/Z
VDD
Async EMIF: Second chip select. Can be programmed to be used for standard
asynchronous memories(example: flash), OneNAND, or NAND memory.
GIO: GIO[036]
EM_WE/
GIO035
J15
I/O/Z
VDD
Async EMIF: Write Enable
NAND/SM/xD: WE (Write Enable) output
GIO: GIO[035]
EM_OE/
GIO034
F19
I/O/Z
VDD
Async EMIF: Output Enable
NAND/SM/xD: RE (Read Enable) output
GIO: GIO[034]
EM_WAIT/
GIO033
G18
I/O/Z
VDD
Async EMIF: Async WAIT
NAND/SM/xD: RDY/ BSY input
GIO: GIO[033]
EM_ADV/
GIO032
H16
I/O/Z
VDD
OneNAND: Address valid detect for OneNAND interface
GIO: GIO[032]
EM_CLK/
GIO031
E19
I/O/Z
VDD
OneNAND: Clock for OneNAND flash interface
GIO: GIO[031]
2.7
DDR Memory Interface
The DDR EMIF supports DDR2 and mobile DDR.
Table 2-10. DDR Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
DDR_CLK
W9
I/O/Z
VDD_DDR
DDR Data Clock
DDR_CLK
W8
I/O/Z
VDD_DDR
DDR Complementary Data Clock
DDR_RAS
T6
I/O/Z
VDD_DDR
DDR Row Address Strobe
DDR_CAS
V9
I/O/Z
VDD_DDR
DDR Column Address Strobe
DDR_WE
W10
I/O/Z
VDD_DDR
DDR Write Enable
DDR_CS
T8
I/O/Z
VDD_DDR
DDR Chip Select
DDR_CKE
V10
I/O/Z
VDD_DDR
DDR Clock Enable
DDR_DQM[1]
U15
I/O/Z
VDD_DDR
DDR_DQM[0]
T12
I/O/Z
VDD_DDR
Data mask outputs:
•
DDR_DQM[1] - For DDR_DQ[15:8]
•
DDR_DQM[0] - For DDR_DQ[7:0]
DDR_DQS[1]
V15
I/O/Z
VDD_DDR
DDR_DQS[0]
V12
I/O/Z
VDD_DDR
DDR_BA[2]
V8
I/O/Z
VDD_DDR
Bank select outputs. Two are required for 1Gb DDR2 memories.
DDR_BA[1]
U7
I/O/Z
VDD_DDR
Bank select outputs. Two are required for 1Gb DDR2 memories.
DDR_BA[0]
U8
I/O/Z
VDD_DDR
Bank select outputs. Two are required for 1Gb DDR2 memories.
DDR_A13
U6
I/O/Z
VDD_DDR
DDR Address Bus bit 13
DDR_A12
V7
I/O/Z
VDD_DDR
DDR Address Bus bit 12
DDR_A11
W7
I/O/Z
VDD_DDR
DDR Address Bus bit 11
DDR_A10
V6
I/O/Z
VDD_DDR
DDR Address Bus bit 10
(1)
(2)
(3)
22
Data strobe input/outputs for each byte of the 16-bit data bus used to
synchronize the data transfers. Output to DDR when writing and inputs when
reading.
•
DDR_DQS[1] - For DDR_DQ[15:8]
•
DDR_DQS[0] - For DDR_DQ[7:0]
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-10. DDR Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
DDR_A09
W6
I/O/Z
VDD_DDR
DDR Address Bus bit 09
DDR_A08
W5
I/O/Z
VDD_DDR
DDR Address Bus bit 08
DDR_A07
V5
I/O/Z
VDD_DDR
DDR Address Bus bit 07
DDR_A06
U5
I/O/Z
VDD_DDR
DDR Address Bus bit 06
DDR_A05
W4
I/O/Z
VDD_DDR
DDR Address Bus bit 05
DDR_A04
V4
I/O/Z
VDD_DDR
DDR Address Bus bit 04
DDR_A03
W3
I/O/Z
VDD_DDR
DDR Address Bus bit 03
DDR_A02
W2
I/O/Z
VDD_DDR
DDR Address Bus bit 02
DDR_A01
V3
I/O/Z
VDD_DDR
DDR Address Bus bit 01
DDR_A00
V2
I/O/Z
VDD_DDR
DDR Address Bus bit 00
DDR_DQ15
W17
I/O/Z
VDD_DDR
DDR Data Bus bit 15
DDR_DQ14
V16
I/O/Z
VDD_DDR
DDR Data Bus bit 14
DDR_DQ13
W16
I/O/Z
VDD_DDR
DDR Data Bus bit 13
DDR_DQ12
U16
I/O/Z
VDD_DDR
DDR Data Bus bit 12
DDR_DQ11
W15
I/O/Z
VDD_DDR
DDR Data Bus bit 11
DDR_DQ10
W14
I/O/Z
VDD_DDR
DDR Data Bus bit 10
DDR_DQ09
V14
I/O/Z
VDD_DDR
DDR Data Bus bit 09
DDR_DQ08
U13
I/O/Z
VDD_DDR
DDR Data Bus bit 08
DDR_DQ07
W13
I/O/Z
VDD_DDR
DDR Data Bus bit 07
DDR_DQ06
V13
I/O/Z
VDD_DDR
DDR Data Bus bit 06
DDR_DQ05
W12
I/O/Z
VDD_DDR
DDR Data Bus bit 05
DDR_DQ04
U12
I/O/Z
VDD_DDR
DDR Data Bus bit 04
DDR_DQ03
T11
I/O/Z
VDD_DDR
DDR Data Bus bit 03
DDR_DQ02
U11
I/O/Z
VDD_DDR
DDR Data Bus bit 02
DDR_DQ01
W11
I/O/Z
VDD_DDR
DDR Data Bus bit 01
DDR_DQ00
V11
I/O/Z
VDD_DDR
DDR Data Bus bit 00
DDR_
DQGATE0
W18
I/O/Z
VDD_DDR
DDR: Loopback signal for external DQS gating. Route to DDR and back to
DDR_DQGATE1 with same constraints as used for DDR clock and data.
DDR_
DQGATE1
V17
I/O/Z
VDD_DDR
DDR: Loopback signal for external DQS gating. Route to DDR and back to
DDR_DQGATE0 with same constraints as used for DDR clock and data.
DDR_VREF
U10
I/O/Z
VDD_DDR
DDR: Voltage input for the SSTL_18 I/O buffers. Note even in the case of
mDDR an external resistor divider connected to this pin is necessary.
VSSA_DLL
R11
I/O/Z
VSSA_DLL
DDR: Ground for the DDR DLL
VDDA33_DDRDL
R10
I/O/Z
VDDA33_DDRDLL
T9
I/O/Z
VDD_DDR
L
DDR_ZN
DDR: Power (3.3 V) for the DDR DLL
DDR: Reference output for drive strength calibration of N and P channel
outputs. Tie to ground via 50 ohm resistor @ 0.5% tolerance.
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GPIO
The General Purpose I/O signals provide generic I/O to external devices. Most of the GIO signals are
multiplexed with other functions.
Table 2-11. GPIO Terminal Functions
TERMINAL
NAME
NO.
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
GIO000
C16
I/O/Z
VDD
GIO:GIO[000] is sampled at reset and stored in the GIO0_RESET bit of the
BOOTCFG register.
Active low during MMC/SD boot (can be used as MMC/SD power control).
Can be used as external clock input for Timer 3.
Note: The GIO000 pin must be held high during NAND boot for the boot
process to fuction properly.
GIO001
E14
I/O/Z
VDD
GIO: GIO[001] Can be used as external clock input for Timer 3.
GIO002
F15
I/O/Z
VDD
GIO: GIO[002] Can be used as external clock input for Timer 3.
GIO003
G15
I/O/Z
VDD
GIO: GIO[003] Can be used as external clock input for Timer 3.
GIO004
B17
I/O/Z
VDD
GIO: GIO[004]
GIO005
D15
I/O/Z
VDD
GIO: GIO[005]
GIO006
B18
I/O/Z
VDD
GIO: GIO[006]
GIO007 /
SPI0_SDE
NA[1]
C17
I/O/Z
VDD
GIO: GIO[007]
SPI0: Chip Select 1
SPI1_SD
O/
GIO008
E12
I/O/Z
VDD
SPI1: Data Out
GIO: GIO[008]
SPI1_SDI
/ GIO009 /
SPI1_SDE
NA[1]
A13
I/O/Z
VDD
SPI1: Data In -OR- SPI1: Chip Select 1 GIO: GIO[009]
SPI1_SCL
K/
GIO010
C13
I/O/Z
VDD
SPI1: Clock GIO:
GIO[010]
SPI1_SDE
NA[0] /
GIO011
E13
I/O/Z
VDD
SPI1: Chip Select 0
GIO: GIO[011]
UART1_T
XD /
GIO012
R17
I/O/Z
VDD
UART1: Transmit Data
GIO: GIO[012]
UART1_R
XD /
GIO013
R15
I/O/Z
VDD
UART1: Receive Data
GIO: GIO[013]
I2C_SCL /
GIO014
R14
I/O/Z
VDD
I2C: Serial Clock GIO:
GIO[014]
I2C_SDA /
GIO015
R13
I/O/Z
VDD
I2C: Serial Data
GIO: GIO[015]
CLKOUT3
/ GIO016
C11
I/O/Z
VDD
CLKOUT: Output Clock 3
GIO: GIO[016]
CLKOUT2
/ GIO017
A11
I/O/Z
VDD
CLKOUT: Output Clock 2
GIO: GIO[017]
CLKOUT1
/ GIO018
D12
I/O/Z
VDD
CLKOUT: Output Clock 1
GIO: GIO[018]
MMCSD1
_DATA0 /
GIO019 /
UART2_T
XD
A18
I/O/Z
VDD
MMCSD1: DATA0
GIO: GIO[019]
UART2: Transmit Data
(1)
(2)
(3)
24
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-11. GPIO Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
MMCSD1
_DATA1 /
GIO020 /
UART2_R
XD
B15
I/O/Z
VDD
MMCSD1: DATA1
GIO: GIO[020]
UART2: Receive Data
MMCSD1
_DATA2 /
GIO021 /
UART2_C
TS
A16
I/O/Z
VDD
MMCSD1: DATA2
GIO: GIO[021]
UART2: CTS
MMCSD1
_DATA3 /
GIO022 /
UART2_R
TS
B16
I/O/Z
VDD
MMCSD1: DATA3
GIO: GIO[022]
UART2: RTS
MMCSD1
_CMD /
GIO023
A17
I/O/Z
VDD
MMCSD1: Command
GIO: GIO[023]
MMCSD1
_CLK /
GIO024
C15
I/O/Z
VDD
MMCSD1: Clock
GIO: GIO[024]
ASP0_FS
R/
GIO025
F16
I/O/Z
VDD
ASP0: Receive Frame Synch
GIO: GIO[025]
ASP0_CL
KR /
GIO026
F17
I/O/Z
VDD
ASP0: Receive Clock
GIO: GIO[026]
ASP0_DR
/ GIO027
E18
I/O/Z
VDD
ASP0: Receive Data
GIO: GIO[027]
ASP0_FS
X/
GIO028
G17
I/O/Z
VDD
ASP0: Transmit Frame Synch
GIO: GIO[028]
ASP0_CL
KX /
GIO029
F18
I/O/Z
VDD
ASP0: Transmit Clock
GIO: GIO[029]
ASP0_DX
/ GIO030
H15
I/O/Z
VDD
ASP0: Transmit Data
GIO: GIO[030]
EM_CLK /
GIO031
E19
I/O/Z
VDD
OneNAND: Clock signal for OneNAND flash interface GIO: GIO[031]
EM_ADV /
GIO032
H16
I/O/Z
PD
VDD
OneNAND: Address Valid Detect for OneNAND interface
GIO: GIO[032]
EM_WAIT
/ GIO033
G18
I/O/Z
PU
VDD
Async EMIF: Async WAIT NAND/SM/xD: RDY/_BSY input
GIO: GIO[033]
EM_OE /
GIO034
F19
I/O/Z
VDD
Async EMIF: Output Enable
NAND/SM/xD: RE (Read Enable) output
GIO: GIO[034]
EM_WE /
GIO035
J15
I/O/Z
VDD
Async EMIF: Write Enable
NAND/SM/xD: WE (Write Enable) output
GIO: GIO[035]
EM_CE1 /
GIO036
G19
I/O/Z
VDD
Async EMIF: Second Chip Select., Can be programmed to be used for standard
asynchronous memories (example: flash), OneNand or NAND memory.
GIO: GIO[036]
EM_CE0 /
GIO037
J16
I/O/Z
VDD
Async EMIF: Lowest numbered Chip Select. Can be programmed to be used for
standard asynchronous memories (example: flash), OneNand or NAND memory.
Used for the default boot and ROM boot modes.
GIO: GIO[037]
EM_D00 /
GIO038
H18
I/O/Z
VDD
Async EMIF: Data Bus bit[00]
GIO: GIO[038]
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Table 2-11. GPIO Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
EM_D01 /
GIO039
J17
I/O/Z
VDD
Async EMIF: Data Bus bit[01]
GIO: GIO[039]
EM_D02 /
GIO040
H19
I/O/Z
VDD
Async EMIF: Data Bus bit[02]
GIO: GIO[040]
EM_D03 /
GIO041
J18
I/O/Z
VDD
Async EMIF: Data Bus bit[03]
GIO: GIO[041]
EM_D04 /
GIO042
L15
I/O/Z
VDD
Async EMIF: Data Bus bit[04]
GIO: GIO[042]
EM_D05 /
GIO043
J19
I/O/Z
VDD
Async EMIF: Data Bus bit[05]
GIO: GIO[043]
EM_D06 /
GIO044
K17
I/O/Z
VDD
Async EMIF: Data Bus bit[06]
GIO: GIO[044]
EM_D07 /
GIO045
K19
I/O/Z
VDD
Async EMIF: Data Bus bit[07]
GIO: GIO[045]
EM_D08 /
GIO046
L16
I/O/Z
VDD
Async EMIF: Data Bus bit[08]
GIO: GIO[046]
EM_D09 /
GIO047
K18
I/O/Z
VDD
Async EMIF: Data Bus bit[09]
GIO: GIO[047]
EM_D10 /
GIO048
L19
I/O/Z
VDD
Async EMIF: Data Bus bit[10]
GIO: GIO[048]
EM_D11 /
GIO049
L17
I/O/Z
VDD
Async EMIF: Data Bus bit[11]
GIO: GIO[049]
EM_D12 /
GIO050
L18
I/O/Z
VDD
Async EMIF: Data Bus bit[12]
GIO: GIO[050]
EM_D13 /
GIO051
M15
I/O/Z
VDD
Async EMIF: Data Bus bit[13]
GIO: GIO[051]
EM_D14 /
GIO052
M19
I/O/Z
VDD
Async EMIF: Data Bus bit[14]
GIO: GIO[052]
EM_D15 /
GIO053
M18
I/O/Z
VDD
Async EMIF: Data Bus bit[15]
GIO: GIO[053]
EM_BA0 /
GIO054 /
EM_A14
N19
I/O/Z
VDD
Async EMIF: Bank Address 0 signal = 8-bit address. In 8-bit mode, lowest
address bit. Or, can be used as an extra Address line (bit[14] when using 16-bit
memories.
GIO: GIO[054]
EM_BA1 /
GIO055
P19
I/O/Z
VDD
Async EMIF: Bank Address 1 signal = 16-bit address. In 16-bit mode, lowest
address bit. In 8-bit mode, second lowest address bit
GIO: GIO[055]
EM_A00 /
GIO056
M16
I/O/Z
VDD
Async EMIF: Address Bus bit[00] Note that the EM_A0 is always a 32-bit
address
GIO: GIO[056]
EM_A03 /
GIO057
N18
I/O/Z
VDD
Async EMIF: Address Bus bit[03]
GIO: GIO[057]
EM_A04 /
GIO058
P15
I/O/Z
VDD
Async EMIF: Address Bus bit[04]
GIO: GIO[058]
EM_A05 /
GIO059
R19
I/O/Z
VDD
Async EMIF: Address Bus bit[05]
GIO: GIO[059]
EM_A06 /
GIO060
P18
I/O/Z
VDD
Async EMIF: Address Bus bit[06]
GIO: GIO[060]
EM_A07 /
GIO061
P16
I/O/Z
VDD
Async EMIF: Address Bus bit[07]
GIO: GIO[061] - Used to drive boot status LED signal (active low) in ROM boot
modes.
EM_A08 /
GIO062 /
AECFG[0]
T19
I/O/Z
PU
VDD
Async EMIF: Address Bus bit[08]
GIO: GIO[062] AECFG[0] sets default for - PinMux2.EM_A0_BA1: AEMIF
Address Width (OneNAND or NAND) - PinMux2.EM_A13_3: AEMIF Address
Width (OneNAND or NAND)
26
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Table 2-11. GPIO Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
EM_A09 /
GIO063 /
AECFG[1]
P17
I/O/Z
PD
VDD
Async EMIF: Address Bus bit[09]
GIO: GIO[063] System: AECFG[3:0] sampled at Power-on-Reset to set AEMIF
Configuration AECFG[2:1] sets default for PinMux2.EM_BA0: AEMIF EM_BA0
Definition (EM_BA0, EM_A14, GIO[054], rsvd)
EM_A10 /
GIO064 /
AECFG[2]
R18
I/O/Z
PU
VDD
Async EMIF: Address Bus bit[10]
GIO: GIO[064] System: AECFG[3:0] sampled at Power-on-Reset to set AEMIF
Configuration AECFG[2:1] sets default for PinMux2.EM_BA0: AEMIF EM_BA0
Definition (EM_BA0, EM_A14, GIO[054], rsvd)
Async EMIF: Address Bus bit[11]
GIO: GIO[065] System: AECFG[3:0] sampled at Power-on-Reset to set AEMIF
Configuration AECFG[3] sets default for PinMux2.EM_D15_8: AEMIF Default
Bus Width (16 or 8 bits)
EM_A11 /
GIO065 /
AECFG[3]
R16
I/O/Z
PU
VDD
EM_A12 /
GIO066 /
BTSEL[0]
U19
I/O/Z
PD
VDD
Async EMIF: Address Bus bit[12]
GIO: GIO[066] System: BTSEL[1:0] sampled at Power-on-Reset to determine
Boot method
EM_A13 /
GIO067 /
BTSEL[1]
V19
I/O/Z
PD
VDD
Async EMIF: Address Bus bit[13]
GIO: GIO[067] System: BTSEL[1:0] sampled at Power-on-Reset to determine
Boot method.
VCLK /
GIO068
H3
I/O/Z
VDD_VOUT
EXTCLK /
GIO069 /
B2 /
PWM3D
G3
I/O/Z
FIELD /
GIO070 /
R2 /
PWM3C
H4
VSYNC /
GIO072
Video Encoder: Video Output Clock
GIO: GIO[068]
VDD_VOUT
Video Encoder: External clock input, used if clock rates > 27 MHz are needed,
e.g. 74.25 MHz for HDTV digital output
GIO: GIO[069] Digital Video Out: B2 PWM3D
I/O/Z
VDD_VOUT
Video Encoder: Field identifier for interlaced display formats
GIO: GIO[070] Digital Video Out: R2 PWM3C
G5
I/O/Z
PD
VDD_VOUT
Video Encoder: Vertical Sync
GIO: GIO[072]
HSYNC /
GIO073
F5
I/O/Z
PD
VDD_VOUT
Video Encoder: Horizontal Sync
GIO: GIO[073]
COUT0B3 /
GIO074 /
PWM3B
F4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[074]
PWM3B
COUT1B4 /
GIO075 /
PWM3A
F3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[075]
PWM3A
COUT2B5 /
GIO076 /
PWM2D /
RTO3
E4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[076] PWM2D
RTO3
COUT3B6 /
GIO077 /
PWM2C /
RTO2
E3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[077] PWM2C
RTO2
COUT4B7 /
GIO078 /
PWM2B /
RTO1
D3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[078] PWM2B
RTO1
COUT5G2 /
GIO079 /
PWM2A /
RTO0
C1
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[079] PWM2A
RTO0
PD
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Table 2-11. GPIO Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
COUT6G3 /
GIO080 /
PWM1
D2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[080]
PWM1
COUT7G4 /
GIO081 /
PWM0
C2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[081]
PWM0
PCLK /
GIO082
T3
I/O/Z
PD
VDD_VIN
Pixel clock input (strobe for lines CI7 through YI0) GIO: GIO[082]
Write enable input signal is used by external device (AFE/TG) to gate the DDR
output of the CCDC module. Alternately, the field identification input signal is
used by external device (AFE/TG) to indicate the which of two frames is input to
the CCDC module for sensors with interlaced output. CCDC handles 1- or 2-field
sensors in hardware. GIO: GIO[083]
CAM_WE
N_FIELD /
GIO083
R5
I/O/Z
CAM_VD /
GIO084
R4
I/O/Z
PD
VDD_VIN
Vertical synchronization signal that can be either an input (slave mode) or an
output (master mode). Tells the CCDC when a new frame starts.
GIO: GIO[084]
CAM_HD /
GIO085
N5
I/O/Z
PD
VDD_VIN
Horizontal synchronization signal that can be either an input (slave mode) or an
output (master mode). Tells the CCDC when a new line starts.
GIO: GIO[085]
YIN0 /
GIO086
P5
I/O/Z
YIN1 /
GIO087
P2
I/O/Z
YIN2 /
GIO088
P4
I/O/Z
YIN3 /
GIO089
R3
I/O/Z
YIN4 /
GIO090
P3
I/O/Z
YIN5 /
GIO091
M5
I/O/Z
YIN6 /
GIO092
M4
I/O/Z
YIN7 /
GIO093
L5
I/O/Z
CIN0 /
GIO094
28
J3
I/O/Z
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
Standard CCD/CMOS input: raw[00] YCC 16-bit: time multiplexed between luma:
Y[00] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[00]
GIO: GIO[086]
Standard CCD/CMOS input: raw[01] YCC 16-bit: time multiplexed between luma:
Y[01] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[01]
GIO: GIO[087]
Standard CCD/CMOS input: raw[02] YCC 16-bit: time multiplexed between luma:
Y[02] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[02]
GIO: GIO[088]
Standard CCD/CMOS input: raw[03] YCC 16-bit: time multiplexed between luma:
Y[03] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[03]
GIO: GIO[089]
Standard CCD/CMOS input: raw[04] YCC 16-bit: time multiplexed between luma:
Y[04] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[04]
GIO: GIO[090]
Standard CCD/CMOS input: raw[05] YCC 16-bit: time multiplexed between luma:
Y[05] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[05]
GIO: GIO[091]
Standard CCD/CMOS input: raw[06] YCC 16-bit: time multiplexed between luma:
Y[06] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[06]
GIO: GIO[092]
Standard CCD/CMOS input: raw[07] YCC 16-bit: time multiplexed between luma:
Y[07] YCC 08-bit (which allows for 2 simultaneous decoder inputs), it is time
multiplexed between luma and chroma of the lower channel. Y/CB/CR[07]
GIO: GIO[093]
Standard CCD/CMOS input: raw[08] YCC 16-bit: time multiplexed between
chroma: CB/CR[00] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[00]
GIO: GIO[094]
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Table 2-11. GPIO Terminal Functions (continued)
TERMINAL
NAME
NO.
CIN1 /
GIO095
CIN2 /
GIO096
CIN3 /
GIO097
CIN4 /
GIO098 /
SPI2_SDI
/
SPI2_SDE
NA[1]
CIN5 /
GIO099 /
SPI2_SDE
NA[0]
CIN6 /
GIO100 /
SPI2_SD
O
L3
J5
J4
L4
M3
K5
TYPE (1)
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
OTHER (2)
(3)
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
PD
VDD_VIN
DESCRIPTION
Standard CCD/CMOS input: raw[09] YCC 16-bit: time multiplexed between
chroma: CB/CR[01] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[01]
GIO: GIO[095]
Standard CCD/CMOS input: raw[10] YCC 16-bit: time multiplexed between
chroma: CB/CR[02] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[02]
GIO: GIO[096]
Standard CCD/CMOS input: raw[11] YCC 16-bit: time multiplexed between
chroma: CB/CR[03] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[03]
GIO: GIO[097]
Standard CCD/CMOS input: raw[12] YCC 16-bit: time multiplexed between
chroma: CB/CR[04] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[04] SPI: SPI2 Data In -OR- SPI2 Chip select 1.
GIO: GIO[098]
Standard CCD/CMOS input: raw[13] YCC 16-bit: time multiplexed between
chroma: CB/CR[05] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[05] SPI: SPI2 Chip Select 0.
GIO: GIO[99]
Standard CCD/CMOS input: NOT USED YCC 16-bit: time multiplexed between
chroma: CB/CR[06] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[06] SPI: SPI2 Data Out
GIO: GIO[100]
Standard CCD/CMOS input: NOT USED YCC 16-bit: time multiplexed between
chroma: CB/CR[07] YCC 08-bit (which allows for 2 simultaneous decoder
inputs), it is time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[07] SPI: SPI2 Clock
GIO: GIO[101]
CIN7 /
GIO101 /
SPI2_SCL
K
N3
I/O/Z
SPI0_SDI
/ GIO102
A12
I/O/Z
VDD
SPI0: Data In
GIO: GIO[102]
SPI0_SDE
NA[0] /
GIO103
B12
I/O/Z
VDD
SPI0: Chip Select 0
GIO: GIO[103]
2.9
PD
VDD_VIN
Multi-Media Card/Secure Digital (MMC/SD) Interfaces
The DM355 includes two Multi-Media Card/Secure Digital card interfaces that are compatible with the
MMC/SD and SDIO protocol.
Table 2-12. MMC/SD Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
MMCSD0_
CLK
A15
I/O/Z
VDD
MMCSD0: Clock
MMCSD0_
CMD
C14
I/O/Z
VDD
MMCSD0: Command
MMCSD0_
DATA0
B14
I/O/Z
VDD
MMCSD0: DATA0
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-12. MMC/SD Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
MMCSD0_
DATA1
D14
I/O/Z
VDD
MMCSD0: DATA1
MMCSD0_
DATA2
B13
I/O/Z
VDD
MMCSD0: DATA2
MMCSD0_
DATA3
A14
I/O/Z
VDD
MMCSD0: DATA3
MMCSD1_
CLK/
GIO024
C15
I/O/Z
VDD
MMCSD1: Clock
GIO: GIO[024]
MMCSD1_
CMD/
GIO023
A17
I/O/Z
VDD
MMCSD1: Command
GIO: GIO[023]
MMCSD1_
DATA0/
GIO019/
UART2_T
XD
A18
I/O/Z
VDD
MMCSD1: DATA0
GIO: GIO[019]
UART2: Transmit data
MMCSD1_
DATA1/
GIO020/
UART2_R
XD
B15
I/O/Z
VDD
MMCSD1: DATA1
GIO: GIO[020]
UART2: Receive data
MMCSD1_
DATA2/
GIO021/
UART2_C
TS
A16
I/O/Z
VDD
MMCSD1: DATA2
GIO: GIO[021]
UART2: CTS
MMCSD1_
DATA3/
GIO022/
UART2_R
TS
B16
I/O/Z
VDD
MMCSD1: DATA3
GIO: GIO[022]
UART2: RTS
2.10 Universal Serial Bus (USB) Interface
The Universal Serial Bus (USB) interface supports the USB2.0 High-Speed protocol and includes dual-role
Host/Slave support. However, no charge pump is included.
Table 2-13. USB Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
USB_DP
A7
A I/O/Z
VDDA33_USB
USB D+ (differential signal pair).
When USB is not used, this signal should be connected to VSS_USB.
USB_DM
A6
A I/O/Z
VDDA33_USB
USB D- (differential signal pair).
When USB is not used, this signal should be connected to VSS_USB.
USB_R1
(1)
(2)
(3)
30
C7
A I/O/Z
USB reference current output
Connect to VSS_USB_REF via 10K ohm , 1% resistor placed as close to the device
as possible.
When USB is not used, this signal should be connected to VSS_USB.
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-13. USB Terminal Functions (continued)
TERMINAL
NAME
NO.
USB_ID
D5
TYPE (1)
A I/O/Z
OTHER (2)
(3)
VDDA33_USB
DESCRIPTION
USB operating mode identification pin
For Device mode operation only, pull up this pin to VDD with a 1.5K ohm resistor.
For Host mode operation only, pull down this pin to ground (VSS) with a 1.5K ohm
resistor.
If using an OTG or mini-USB connector, this pin will be set properly via the
cable/connector configuration.
When USB is not used, this signal should be connected to VSS_USB.
USB_VBUS
E5
A I/O/Z
VDD
For host or device mode operation, tie the VBUS/USB power signal to the USB
connector.
When used in OTG mode operation, tie VBUS to the external charge pump and
to the VBUS signal on the USB connector.
When the USB is not used, tie VBUS to VSS_USB.
USB_DRVVBUS
C5
O/Z
VDD
Digital output to control external 5 V supply
When USB is not used, this signal should be left as a No Connect.
VSS_USB_REF
C8
GND
VDD
USB Ground Reference
Connect directly to ground and to USB_R1 via 10K ohm, 1% resistor placed as
close to the device as possible.
VDDA33_USB
J8
PWR
VDD
Analog 3.3 V power USBPHY
When USB is not used, this signal should be connected to VSS_USB.
VDDA33_USB_PLL
B6
PWR
VDD
Common mode 3.3 V power for USB PHY (PLL)
When USB is not used, this signal should be connected to VSS_USB.
VDDA13_USB
H7
PWR
VDD
Analog 1.3 V power for USB PHY
When USB is not used, this signal should be connected to VSS_USB.
VDDD13_USB
C6
PWR
VDD
Digital 1.3 V power for USB PHY
When USB is not used, this signal should be connected to VSS_USB.
2.11 Audio Interfaces
The DM355 includes two Audio Serial Ports (ASP ports), which are backward compatible with other TI
ASP serial ports and provide I2S audio interface. One interface is multiplexed with GIO signals.
Table 2-14. ASP Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
ASP0_CL
KR/
GIO026
F17
I/O/Z
VDD
ASP0: Receive Clock
GIO: GIO[026]
ASP0_CL
KX /
GIO029
F18
I/O/Z
VDD
ASP0: Transmit Clock
GIO: GIO[029]
ASP0_DR
/
GIO027
E18
I/O/Z
VDD
ASP0: Receive Data
GIO: GIO[027]
ASP0_DX
/
GIO030
H15
I/O/Z
VDD
ASP0: Transmit Data
GIO: GIO[030]
ASP0_FS
R/
GIO025
F16
I/O/Z
VDD
ASP0: Receive Frame Synch
GIO: GIO[025]
ASP0_FS
X/
GIO028
G17
I/O/Z
VDD
ASP0: Transmit Frame SynchGIO: GIO[028]
ASP1_CL
KR
D18
I/O/Z
VDD
ASP1: Receive Clock
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-14. ASP Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
ASP1_CL
KS
D17
I/Z
VDD
ASP1: Master Clock
ASP1_CL
KX
D19
I/O/Z
VDD
ASP1: Transmit Clock
ASP1_DR
C19
I/O/Z
VDD
ASP1: Receive Data
ASP1_DX
C18
I/O/Z
VDD
ASP1: Transmit Data
ASP1_FS
R
E17
I/O/Z
VDD
ASP1: Receive Frame Synch
ASP1_FS
X
E16
I/O/Z
VDD
ASP1: Transmit Frame Sync
2.12 UART Interface
The DM355 includes three UART ports. These ports are multiplexed with GIO and other signals.
Table 2-15. UART Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
UART0_RXD
U18
I
VDD
UART0: Receive data. Used for UART boot mode
UART0_TXD
T18
O
VDD
UART0: Transmit data. Used for UART boot mode
UART1_RXD/
GIO013
R15
I/O/Z
VDD
UART1: Receive data.
GIO: GIO013
UART1_TXD/
GIO012
R17
I/O/Z
VDD
UART1: Transmit data.
GIO: GIO012
MMCSD1_DA
TA2/
GIO021/
UART2_CTS
A16
I/O/Z
VDD
MMCSD1: DATA2
GIO: GIO021
UART2: CTS
MMCSD1_DA
TA3/
GIO022/
UART2_RTS
B16
I/O/Z
VDD
MMCSD1: DATA3
GIO: GIO022
UART2: RTS
MMCSD1_DA
TA1/
GIO020/
UART2_RXD
B15
I/O/Z
VDD
MMCSD1: DATA1
GIO: GIO020
UART2: RXD
MMCSD1_DA
TA0/
GIO019/
UART2_TXD
A18
I/O/Z
VDD
MMCSD1: DATA0
GIO: GIO019
UART2: TXD
(1)
(2)
(3)
32
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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2.13 I2C Interface
The DM355 includes an I2C two-wire serial interface for control of external peripherals. This interface is
multiplexed with GIO signals.
Table 2-16. I2C Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
I2C_SDA/
GIO015
R13
I/O/Z
VDD
I2C: Serial data
GIO: GIO015
I2C_SCL/
GIO014
R14
I/O/Z
VDD
I2C: Serial clock
GIO: GIO014
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
2.14 Serial Interface
The DM355 includes three independent serial ports. These interfaces are multiplexed with GIO and other
signals.
Table 2-17. SPI Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
SPI0_SCLK
C12
I/O/Z
VDD
SPI0: Clock
SPI0_SDENA[0]/
GIO103
B12
I/O/Z
VDD
SPI0: Chip select 0
GIO: GIO[103]
GIO007
SPI0_SDENA[1]
C17
I/O/Z
VDD
GIO: GIO[007]
SPI0: Chip select 1
SPI0_SDI/
GIO102
A12
I/O/Z
VDD
SPI0: Data in
GIO: GIO[102]
SPI0_SDO
B11
I/O/Z
VDD
SPI0: Data out
SPI1_SCLK/
GIO010
C13
I/O/Z
VDD
SPI1: Clock
GIO: GIO[010]
SPI1_SDENA[0]/
GIO011
E13
I/O/Z
VDD
SPI1: Chip select 0
GIO: GIO[011] - Active low during MMC/SD boot (can be used as
MMC/SD power control)
SPI1_SDI/
GIO009/
SPI1_SDENA[1]
A13
I/O/Z
VDD
SPI1: Data in or
SPI1: Chip select 1
GIO: GIO[09]
SPI1_SDO/
GIO008
E12
I/O/Z
VDD
SPI1: Data out
GIO: GIO[008]
CIN7/
GIO101/
SPI2_SCLK
CIN5/
GIO099/
SPI2_SDENA[0]
(1)
(2)
(3)
N3
M3
I/O/Z
I/O/Z
PD
VDD_VIN
Standard CCD/CMOS input: Not used
•
YCC 16-bit: time multiplexed between chroma. CB/CR[07]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is
time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[07]
SPI: SPI2 clock
GIO: GIO[101]
PD
VDD_VIN
Standard CCD/CMOS input: Raw[13]
•
YCC 16-bit: time multiplexed between chroma. CB/CR[05]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is
time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[07]
SPI: SPI2 chip select 0
GIO: GIO[099]
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-17. SPI Terminal Functions (continued)
TERMINAL
NAME
NO.
CIN4/
GIO098/
SPI2_SDI/
SPI2_SDENA[1]
L4
CIN6/
GIO100/
SPI2_SDO/
K5
OTHER (2)
TYPE (1)
(3)
I/O/Z
I/O/Z
DESCRIPTION
PD
VDD_VIN
Standard CCD/CMOS input: Raw[12]
•
YCC 16-bit: time multiplexed between chroma. CB/CR[04]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is
time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[04]
SPI: SPI2 Data in -OR- SPI2 Chip select 1
GIO: GIO[0998]
PD
VDD_VIN
Standard CCD/CMOS input: Not used
•
YCC 16-bit: time multiplexed between chroma. CB/CR[06]
•
YCC 8-bit (which allows for two simultaneous decoder inputs), it is
time multiplexed between luma and chroma of the upper channel.
Y/CB/CR[06]
SPI: SPI2 Data out
GIO: GIO[100]
2.15 Clock Interface
The DM355 provides interface with the system clocks.
Table 2-18. Clocks Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
CLKOUT1
/ GIO018
D12
I/O/Z
VDD
CLKOUT: Output Clock 1
GIO: GIO[018]
CLKOUT2
/ GIO017
A11
I/O/Z
VDD
CLKOUT: Output Clock 2
GIO: GIO[017]
CLKOUT3
/ GIO016
C11
I/O/Z
VDD
CLKOUT: Output Clock 3
GIO: GIO[016]
MXI1
A9
I
VDD
Crystal input for system oscillator (24 MHz or 36 MHz)
MXO1
B9
O
VDD
Output for system oscillator (24 MHz or 36 MHz). When the MX02 is not used,
the MX02 signal can be left open.
VDD
Crystal input for video oscillator (27 MHz) Optional, use only if 27MHz derived
from MXI1 and PLL does not provide sufficient performance for Video DAC.
When the MXI2 is not used and powered down, the MXI2 signal should be left
as a No Connect
VDD
Output for video oscillator (27 MHz) Optional, use only if 27MHz derived from
MXI1 and PLL does not provide sufficient performance for Video DAC When the
MXO2 is not used and powered down, the MXO2 signal should be left as a No
Connect.
MXI2
MXO2
(1)
(2)
(3)
34
R1
T1
I
O
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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2.16 Real Time Output (RTO) Interface
The DM355 provides Real Time Output (RTO) interface.
Table 2-19. RTO Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
COUT5G2 /
GIO079 /
PWM2A /
RTO0
C1
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[079]
PWM2A
RTO0
COUT4B7 /
GIO078 /
PWM2B /
RTO1
D3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[078]
PWM2B
RTO1
COUT3B6 /
GIO077 /
PWM2C /
RTO2
E3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[077]
PWM2C
RTO2
COUT2B5 /
GIO076 /
PWM2D /
RTO3
E4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[076]
PWM2D
RTO3
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
2.17 Pulse Width Modulator (PWM) Interface
The DM355 provides Pulse Width Modulator (PWM) interface.
Table 2-20. PWM Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
COUT7G4 /
GIO081 /
PWM0
C2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[081]
PWM0
COUT6G3 /
GIO080 /
PWM1
D2
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[080]
PWM1
COUT5G2 /
GIO079 /
PWM2A /
RTO0
C1
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[079]
PWM2A
RTO0
COUT4B7 /
GIO078 /
PWM2B /
RTO1
D3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[078]
PWM2B
RTO1
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-20. PWM Terminal Functions (continued)
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
COUT3B6 /
GIO077 /
PWM2C /
RTO2
E3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[077]
PWM2C
RTO2
COUT2B5 /
GIO076 /
PWM2D /
RTO3
E4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[076]
PWM2D
RTO3
COUT1B4 /
GIO075 /
PWM3A
F3
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[075]
PWM3A
COUT0B3 /
GIO074 /
PWM3B
F4
I/O/Z
VDD_VOUT
Digital Video Out: VENC settings determine function GIO: GIO[074]
PWM3B
FIELD /
GIO070 /
R2 /
PWM3C
H4
I/O/Z
VDD_VOUT
Video Encoder: Field identifier for interlaced display formats GIO: GIO[070]
Digital Video Out: R2
PWM3C
EXTCLK /
GIO069 /
B2 /
PWM3D
G3
I/O/Z
PD
VDD_VOUT
Video Encoder: External clock input, used if clock rates > 27 MHz are needed,
e.g. 74.25 MHz for HDTV digital output GIO: GIO[069] Digital Video Out: B2
PWM3D
2.18 System Configuration Interface
The DM355 provides interfaces for system configuration and boot load.
Table 2-21. System/Boot Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
EM_A13/
GIO067/
BTSEL[1]
V19
I/O/Z
PD
VDD
Async EMIF: Address bus bit 13
GIO: GIO[067]
System: BTSEL[1:0] sampled at power-on-reset to determine boot method.
EM_A12/
GIO066/
BTSEL[0]
U19
I/O/Z
PD
VDD
Async EMIF: Address bus bit 12
GIO: GIO[066]
System: BTSEL[1:0] sampled at power-on-reset to determine boot method.
I/O/Z
PU
VDD
Async EMIF: Address bus bit 11
GIO: GIO[065]
System: AECFG[3:0] sampled a power-on-reset to set AEMIF configuration.
AECFG[3] sets default fo PinMux2.EM_D15_8. AEMIF default bus width (16 or 8
bits).
I/O/Z
PU
VDD
Async EMIF: Address bus bit 10
GIO: GIO[064]
System: AECFG[3:0] sampled a power-on-reset to set AEMIF configuration.
AECFG[2:1] sets default fo PinMux2.EM_BA0. AEMIF EM_BA0 definition:
(EM_BA0, EM_A14, GIO[054], rsvd)
I/O/Z
PD
VDD
Async EMIF: Address bus bit 09
GIO: GIO[063]
System: AECFG[3:0] sampled a power-on-reset to set AEMIF configuration.
AECFG[2:1] sets default fo PinMux2.EM_BA0. AEMIF EM_BA0 definition:
(EM_BA0, EM_A14, GIO[054], rsvd)
EM_A11/
GIO065/
AECFG[3]
EM_A10/
GIO064/
AECFG[2]
EM_A09/
GIO063/
AECFG[1]
(1)
(2)
(3)
36
R16
R18
P17
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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Table 2-21. System/Boot Terminal Functions (continued)
TERMINAL
NAME
NO.
EM_A08/
GIO062/
AECFG[0]
T19
TYPE (1)
I/O/Z
OTHER (2)
(3)
DESCRIPTION
Async EMIF: Address bus bit 08
GIO: GIO[062]
System: AECFG[0] sets default for:
•
PinMux2.EM_A0_BA1 - AEMIF address width (OneNAND, or NAND)
•
PinMux2.EM_A13_3 - AEMIF address width (OneNAND, or NAND)
PU
VDD
2.19 Emulation
The emulation interface allow software and hardware debugging.
Table 2-22. Emulation Terminal Functions
TERMINAL
TYPE (1)
OTHER (2)
(3)
DESCRIPTION
NAME
NO.
TCK
E10
I
VDD
JTAG test clock input
TDI
D9
I
PU
VDD
JTAG test data input
TDO
E9
O
VDD
JTAG test data output
TMS
D8
I
PU
VDD
JTAG test mode select
TRST
C9
I
PD
VDD
JTAG test logic reset (active low)
RTCK
E11
O
VDD
JTAG test clock output
EMU0
E8
I/O/Z
PU
VDD
JTAG emulation 0 I/O
EMU[1:0] = 00 - Force Debug Scan chain (ARM and ARM ETB TAPs connected)
EMU[1:0] = 11 - Normal Scan chain (ICEpick only)
EMU1
E7
I/O/Z
PU
VDD
JTAG emulation 1 I/O
EMU[1:0] = 00 - Force Debug Scan chain (ARM and ARM ETB TAPs connected)
EMU[1:0] = 11 - Normal Scan chain (ICEpick only)
(1)
(2)
(3)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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2.20 Pin List
Table 2-23 provides a complete pin description list in pin number order.
Table 2-23. DM355 Pin Descriptions
Name
BGA
ID
CIN7 / GIO101 /
SPI2_SCLK
N3
Type Group
(1)
I/O
CCDC
/ GIO /
SPI2
Power
Supply (2)
VDD_VIN
Description (4)
PU Reset
PD (3) State
PD
in
Standard CCD/CMOS input: NOT USED
YCC 16-bit: time multiplexed between
chroma: CB/CR[07]
Mux Control
PINMUX0[1:0].CIN_
7
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between
luma and chroma of the upper channel.
Y/CB/CR[07]
SPI: SPI2 Clock
GIO: GIO[101]
CIN6 / GIO100 /
SPI2_SDO
K5
I/O
CCDC
/ GIO /
SPI2
VDD_VIN
PD
in
Standard CCD/CMOS input: NOT USED
YCC 16-bit: time multiplexed between
chroma: CB/CR[06]
PINMUX0[3:2].CIN_
6
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[06]
SPI: SPI2 Data Out
GIO: GIO[100]
CIN5 / GIO099 /
SPI2_SDENA[0]
M3
I/O
CCDC
/ GIO /
SPI2
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[13]
PINMUX0[5:4].CIN_
5
YCC 16-bit: time multiplexed between
chroma: CB/CR[05]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[05]
SPI: SPI2 Chip Select 0
GIO: GIO[99]
CIN4 / GIO098 /
SPI2_SDI /
SPI2_SDENA[1]
L4
I/O
CCDC
/ GIO /
SPI2 /
SPI2
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[12]
PINMUX0[7:6].CIN_
4
YCC 16-bit: time multiplexed between
chroma: CB/CR[04]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[04]
SPI: SPI2 Data In -OR- SPI2 Chip select 1
GIO: GIO[098]
(1)
(2)
(3)
(4)
38
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
Specifies the operating I/O supply voltage for each signal. See Section 5.3 , Power Supplies for more detail.
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
To reduce EMI and reflections, depending on the trace length, approximately 22 Ω to 50 Ω damping resistors are recommend on the
following outputs placed near the DM355: YOUT(0-7),COUT(0-7), HSYNC,VSYNC,LCD_OE,FIELD,EXTCLK,VCLK. The trace lengths
should be minimized.
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Table 2-23. DM355 Pin Descriptions (continued)
Name
CIN3 / GIO097
BGA
ID
J4
Type Group
(1)
I/O
CCDC
/ GIO
Power
Supply (2)
VDD_VIN
Description (4)
PU Reset
PD (3) State
PD
in
Mux Control
Standard CCD/CMOS input: raw[11]
PINMUX0[8].CIN_32
YCC 16-bit: time multiplexed between
chroma: CB/CR[03]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[03]
GIO: GIO[097]
CIN2 / GIO096
J5
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[10]
PINMUX0[8].CIN_32
YCC 16-bit: time multiplexed between
chroma: CB/CR[02]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[02]
GIO: GIO[096]
CIN1 / GIO095
L3
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[09]
PINMUX0[9].CIN_10
YCC 16-bit: time multiplexed between
chroma: CB/CR[01]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[01]
GIO: GIO[095]
CIN0 / GIO094
J3
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[08]
PINMUX0[9].CIN_10
YCC 16-bit: time multiplexed between
chroma: CB/CR[00]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the upper
channel. Y/CB/CR[00]
GIO: GIO[094]
YIN7 / GIO093
L5
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[07]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[07]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[07]
GIO: GIO[093]
YIN6 / GIO092
M4
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[06]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[06]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[06]
GIO: GIO[092]
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Table 2-23. DM355 Pin Descriptions (continued)
Name
YIN5 / GIO091
BGA
ID
M5
Type Group
(1)
I/O
CCDC
/ GIO
Power
Supply (2)
VDD_VIN
Description (4)
PU Reset
PD (3) State
PD
in
Standard CCD/CMOS input: raw[05]
Mux Control
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[05]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[05]
GIO: GIO[091]
YIN4 / GIO090
P3
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[04]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[04]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[04]
GIO: GIO[090]
YIN3 / GIO089
R3
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[03]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[03]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[03]
GIO: GIO[089]
YIN2 / GIO088
P4
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[02]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[02]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[02]
GIO: GIO[088]
YIN1 / GIO087
P2
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[01]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[01]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[01]
GIO: GIO[087]
YIN0 / GIO086
P5
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Standard CCD/CMOS input: raw[00]
PINMUX0[10].YIN_7
0
YCC 16-bit: time multiplexed between luma:
Y[00]
YCC 08-bit (which allows for 2 simultaneous
decoder inputs), it is time multiplexed
between luma and chroma of the lower
channel. Y/CB/CR[00]
GIO: GIO[086]
40
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Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
Type Group
(1)
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
CAM_HD /
GIO085
N5
I/O
CCDC
/ GIO
VDD_VIN
PD
in
CAM_VD /
GIO084
R4
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Mux Control
Horizontal synchronization signal that can be PINMUX0[11].CAM_
either an input (slave mode) or an output
HD
(master mode). Tells the CCDC when a new
line starts.
GIO: GIO[085]
Vertical synchronization signal that can be
either an input (slave mode) or an output
(master mode). Tells the CCDC when a new
frame starts.
PINMUX0[12].CAM_
VD
GIO: GIO[084]
CAM_WEN_FIE
LD / GIO083
R5
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Write enable input signal is used by external
device (AFE/TG) to gate the DDR output of
the CCDC module.
PINMUX0[13].CAM_
WEN
Alternately, the field identification input
signal is used by external device (AFE/TG)
to indicate the which of two frames is input
to the CCDC module for sensors with
interlaced output. CCDC handles 1- or
2-field sensors in hardware.
plus
GIO: GIO[083]
CCDC.MODE[7].CC
DMD &
CCDC.MODE[5].SW
EN
PCLK / GIO082
T3
I/O
CCDC
/ GIO
VDD_VIN
PD
in
Pixel clock input (strobe for lines CI7 through PINMUX0[14].PCLK
YI0)
YOUT7-R7
C3
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT6-R6
A4
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT5-R5
B4
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT4-R4
B3
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT3-R3
B2
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT2-G7
A3
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT1-G6
A2
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
YOUT0-G5
B1
I/O
VENC
VDD_VOUT
in
Digital Video Out: VENC settings determine
function (5)
COUT7-G4 /
GIO081 / PWM0
C2
I/O
VENC
/ GIO /
PWM0
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
GIO: GIO[082]
PINMUX1[1:0].COU
T_7
GIO: GIO[081]
PWM0
COUT6-G3 /
GIO080 / PWM1
D2
I/O
VENC
/ GIO /
PWM1
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
PINMUX1[3:2].COU
T_6
GIO: GIO[080]
PWM1 (5)
(5)
To reduce EMI and reflections, depending on the trace length, approximately 22 Ω to 50 Ω damping resistors are recommend on the
following outputs placed near the DM355: YOUT(0-7),COUT(0-7), HSYNC,VSYNC,LCD_OE,FIELD,EXTCLK,VCLK. The trace lengths
should be minimized.
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Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
COUT5-G2 /
GIO079 /
PWM2A / RTO0
C1
Type Group
(1)
I/O
VENC
/ GIO /
PWM2
/ RTO
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
Mux Control
PINMUX1[5:4].COU
T_5
GIO: GIO[079]
PWM2A
RTO0 (5)
COUT4-B7 /
GIO078 /
PWM2B / RTO1
D3
I/O
VENC
/ GIO /
PWM2
/ RTO
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
PINMUX1[7:6].COU
T_4
GIO: GIO[078]
PWM2B
RTO1 (5)
COUT3-B6 /
GIO077 /
PWM2C / RTO2
E3
I/O
VENC
/ GIO /
PWM2
/ RTO
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
PINMUX1[9:8].COU
T_3
GIO: GIO[077]
PWM2C
RTO2 (5)
COUT2-B5 /
GIO076 /
PWM2D / RTO3
E4
I/O
VENC
/ GIO /
PWM2
/ RTO
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
PINMUX1[11:10].CO
UT_2
GIO: GIO[076]
PWM2D
RTO3 (6)
COUT1-B4 /
GIO075 /
PWM3A
F3
I/O
VENC
/ GIO /
PWM3
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
PINMUX1[13:12].CO
UT_1
GIO: GIO[075]
PWM3A (6)
COUT0-B3 /
GIO074 /
PWM3B
F4
I/O
VENC
/ GIO /
PWM3
VDD_VOUT
in
Digital Video Out: VENC settings determine
function
PINMUX1[15:14].CO
UT_0
GIO: GIO[074]
PWM3B (6)
HSYNC /
GIO073
F5
I/O
VENC
/ GIO
VDD_VOUT
PD
in
Video Encoder: Horizontal Sync
PINMUX1[16].HVSY
NC
GIO: GIO[073] (6)
VSYNC /
GIO072
G5
I/O
VENC
/ GIO
VDD_VOUT
PD
in
Video Encoder: Vertical Sync
PINMUX1[16].HVSY
NC
GIO: GIO[072] (6)
LCD_OE /
GIO071
H5
I/O
VENC
/ GIO
VDD_VOUT
out
Video Encoder: LCD Output Enable or
BRIGHT signal
PINMUX1[17].DLCD
GIO: GIO[071] (6)
(6)
42
To reduce EMI and reflections, depending on the trace length, approximately 22 Ω to 50 Ω damping resistors are recommend on the
following outputs placed near the DM355: YOUT(0-7),COUT(0-7), HSYNC,VSYNC,LCD_OE,FIELD,EXTCLK,VCLK. The trace lengths
should be minimized.
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Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
FIELD / GIO070
/ R2 / PWM3C
H4
Type Group
(1)
I/O
VENC
/ GIO /
VENC
/
PWM3
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
VDD_VOUT
in
Mux Control
Video Encoder: Field identifier for interlaced
display formats
PINMUX1[19:18].FI
ELD
GIO: GIO[070]
Digital Video Out: R2
PWM3C (6)
EXTCLK /
GIO069 / B2 /
PWM3D
G3
I/O
VENC
/ GIO /
VENC
/
PWM3
VDD_VOUT
PD
in
Video Encoder: External clock input, used if PINMUX1[21:20].EX
clock rates > 27 MHz are needed, e.g. 74.25 TCLK
MHz for HDTV digital output
GIO: GIO[069]
Digital Video Out: B2
PWM3D (6)
VCLK / GIO068
H3
I/O
VENC
/ GIO
VDD_VOUT
in
Video Encoder: Video Output Clock
PINMUX1[22].VCLK
GIO: GIO[068] (6)
VREF
J7
A I/O Video
DAC
Video DAC: Reference voltage output
(0.45V, 0.1uF to GND)
IOUT
E1
A I/O Video
DAC
Video DAC: Pre video buffer DAC output
(1000 ohm to VFB)
IBIAS
F2
A I/O Video
DAC
Video DAC: External resistor (2550 Ohms to
GND) connection for current bias
configuration
VFB
G1
A I/O Video
DAC
Video DAC: Pre video buffer DAC output
(1000 ohm to IOUT, 1070 ohm to TVOUT)
TVOUT
F1
A I/O Video
DAC
VDDA18V_DAC
L7
PWR Video
DAC
Video DAC: Analog 1.8V power
VSSA_DAC
L8
GND Video
DAC
Video DAC: Analog 1.8V ground
DDR_CLK
W9
I/O
DDR
VDD_DDR
out L
DDR Data Clock
DDR_CLK
W8
I/O
DDR
VDD_DDR
out H
DDR Complementary Data Clock
DDR_RAS
T6
I/O
DDR
VDD_DDR
out H
DDR Row Address Strobe
DDR_CAS
V9
I/O
DDR
VDD_DDR
out H
DDR Column Address Strobe
DDR_WE
W10
I/O
DDR
VDD_DDR
out H
DDR Write Enable (active low)
DDR_CS
T8
I/O
DDR
VDD_DDR
out H
DDR Chip Select (active low)
DDR_CKE
V10
I/O
DDR
VDD_DDR
out L
DDR Clock Enable
DDR_DQM[1]
U15
I/O
DDR
VDD_DDR
in
Data mask outputs: DDR_DQM1: For
DDR_DQ[15:8]
DDR_DQM[0]
T12
I/O
DDR
VDD_DDR
in
Data mask outputs: DDR_DQM0: For
DDR_DQ[7:0]
DDR_DQS[1]
V15
I/O
DDR
VDD_DDR
in
Data strobe input/outputs for each byte of
the 16 bit data bus used to synchronize the
data transfers. Output to DDR when writing
and inputs when reading.
VDDA18_DAC
Video DAC: Analog Composite NTSC/PAL
output (SeeFigure 5-31 andFigure 5-32 for
circuit connection)
DDR_DQS1: For DDR_DQ[15:8]
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Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
Type Group
(1)
Power
Supply (2)
PU Reset
PD (3) State
Description (4)
DDR_DQS[0]
V12
I/O
DDR
VDD_DDR
in
DDR_BA[2]
V8
I/O
DDR
VDD_DDR
out L
Bank select outputs. Two are required for
1Gb DDR2 memories.
DDR_BA[1]
U7
I/O
DDR
VDD_DDR
out L
Bank select outputs. Two are required for
1Gb DDR2 memories.
DDR_BA[0]
U8
I/O
DDR
VDD_DDR
out L
Bank select outputs. Two are required for
1Gb DDR2 memories.
DDR_A13
U6
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 13
DDR_A12
V7
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 12
DDR_A11
W7
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 11
DDR_A10
V6
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 10
DDR_A09
W6
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 09
DDR_A08
W5
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 08
DDR_A07
V5
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 07
DDR_A06
U5
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 06
DDR_A05
W4
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 05
DDR_A04
V4
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 04
DDR_A03
W3
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 03
DDR_A02
W2
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 02
DDR_A01
V3
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 01
DDR_A00
V2
I/O
DDR
VDD_DDR
out L
DDR Address Bus bit 00
W17
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 15
DDR_DQ14
V16
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 14
DDR_DQ13
W16
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 13
DDR_DQ12
U16
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 12
DDR_DQ11
W15
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 11
DDR_DQ10
W14
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 10
DDR_DQ09
V14
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 09
DDR_DQ08
U13
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 08
DDR_DQ07
W13
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 07
DDR_DQ06
V13
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 06
DDR_DQ05
W12
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 05
DDR_DQ04
U12
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 04
DDR_DQ03
T11
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 03
DDR_DQ02
U11
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 02
DDR_DQ01
W11
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 01
DDR_DQ00
V11
I/O
DDR
VDD_DDR
in
DDR Data Bus bit 00
DDR_
DQGATE0
W18
I/O
DDR
VDD_DDR
out
DDR: Loopback signal for external DQS
gating. Route to DDR and back to
DDR_DQGATE1 with same constraints as
used for DDR clock and data.
DDR_
DQGATE1
V17
I/O
DDR
VDD_DDR
in
DDR: Loopback signal for external DQS
gating. Route to DDR and back to
DDR_DQGATE0 with same constraints as
used for DDR clock and data.
Mux Control
Data strobe input/outputs for each byte of
the 16 bit data bus used to synchronize the
data transfers. Output to DDR when writing
and inputs when reading.
DDR_DQS0: For DDR_DQ[7:0]
DDR_DQ15
44
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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Table 2-23. DM355 Pin Descriptions (continued)
Name
Description (4)
BGA
ID
Type Group
Power
Supply (2)
DDR_VREF
U10
PWR DDRI
O
VDD_DDR
DDR: Voltage input for the SSTL_18 IO
buffers
VSSA_DLL
R11
GND DDRD
LL
VSSA_DLL
DDR: Ground for the DDR DLL
VDDA33_DDRDLL
R10
PWR DDRD
LL
VDDA33_DDR
(1)
PU Reset
PD (3) State
Mux Control
DDR: Power (3.3 Volts) for the DDR DLL
DLL
DDR_ZN
T9
I/O
DDRI
O
VDD_DDR
EM_A13 /
GIO067 /
BTSEL[1]
V19
I/O
AEMI
F/
GIO /
syste
m
VDD
DDR: Reference output for drive strength
calibration of N and P channel outputs. Tie
to ground via 50 ohm resistor @ 0.5%
tolerance.
PD
in L
Async EMIF: Address Bus bit[13]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[067]
default set by
AECFG[0]
System: BTSEL[1:0] sampled at
Power-on-Reset to determine Boot method
(00:NAND, 01:Flash, 10:MMC/SD, 11:UART
)
EM_A12 /
GIO066 /
BTSEL[0]
U19
I/O
AEMI
F/
GIO /
syste
m
VDD
PD
in L
Async EMIF: Address Bus bit[12]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[066]
default set by
AECFG[0]
System: BTSEL[1:0] sampled at
Power-on-Reset to determine Boot method
(00:NAND, 01:Flash, 10:MMC/SD, 11:UART)
EM_A11 /
GIO065 /
AECFG[3]
R16
I/O
AEMI
F/
GIO /
syste
m
VDD
PU
in H
Async EMIF: Address Bus bit[11]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[065]
default set by
AECFG[0]
System: AECFG[3:0] sampled at
Power-on-Reset to set AEMIF Configuration
AECFG[3] sets default for
PinMux2.EM_D15_8: AEMIF Default Bus
Width (0:16 or 1:8 bits)
EM_A10 /
GIO064 /
AECFG[2]
R18
I/O
AEMI
F/
GIO /
syste
m
VDD
PU
in H
Async EMIF: Address Bus bit[10]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[064]
default set by
AECFG[0]
System: AECFG[3:0] sampled at
Power-on-Reset to set AEMIF Configuration
AECFG[2:1] sets default for
PinMux2.EM_BA0: AEMIF EM_BA0
Definition (00: EM_BA0, 01: EM_A14,
10:GIO[054], 11:rsvd)
Device Overview
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TMS320DM355
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
www.ti.com
Table 2-23. DM355 Pin Descriptions (continued)
Name
EM_A09 /
GIO063 /
AECFG[1]
BGA
ID
P17
Type Group
(1)
I/O
AEMI
F/
GIO /
syste
m
Power
Supply (2)
VDD
Description (4)
PU Reset
PD (3) State
PD
in L
Mux Control
Async EMIF: Address Bus bit[09]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[063]
default set by
AECFG[0]
System: AECFG[3:0] sampled at
Power-on-Reset to set AEMIF Configuration
AECFG[2:1] sets default for
PinMux2.EM_BA0: AEMIF EM_BA0
Definition (00: EM_BA0, 01: EM_A14,
10:GIO[054], 11:rsvd)
EM_A08 /
GIO062 /
AECFG[0]
T19
I/O
AEMI
F/
GIO /
syste
m
VDD
PU
in H
Async EMIF: Address Bus bit[08]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[062]
default set by
AECFG[0]
AECFG[0] sets default for
- PinMux2.EM_A0_BA1: AEMIF Address
Width (OneNAND or NAND)
- PinMux2.EM_A13_3: AEMIF Address
Width (OneNAND or NAND)
(0:AEMIF address bits, 1:GIO[67:57])
EM_A07 /
GIO061
EM_A06 /
GIO060
EM_A05 /
GIO059
EM_A04 /
GIO058
EM_A03 /
GIO057
EM_A02
P16
P18
R19
P15
N18
N15
I/O
I/O
I/O
I/O
I/O
I/O
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F
VDD
VDD
VDD
VDD
VDD
VDD
out L
out L
out L
out L
out L
out L
Async EMIF: Address Bus bit[07]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[061] - Used to drive boot status
LED signal (active low) in ROM boot modes.
default set by
AECFG[0]
Async EMIF: Address Bus bit[06]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[060]
default set by
AECFG[0]
Async EMIF: Address Bus bit[05]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[059]
default set by
AECFG[0]
Async EMIF: Address Bus bit[04]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[058]
default set by
AECFG[0]
Async EMIF: Address Bus bit[03]
PINMUX2[0].EM_A1
3_3,
GIO: GIO[057]
default set by
AECFG[0]
Async EMIF: Address Bus bit[02]
NAND/SM/xD: CLE - Command Latch
Enable output
46
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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Table 2-23. DM355 Pin Descriptions (continued)
Name
EM_A01
BGA
ID
N17
Type Group
(1)
I/O
AEMI
F
Power
Supply (2)
VDD
Description (4)
PU Reset
PD (3) State
out L
Mux Control
Async EMIF: Address Bus bit[01]
NAND/SM/xD: ALE - Address Latch Enable
output
EM_A00 /
GIO056
EM_BA1 /
GIO055
M16
P19
I/O
I/O
AEMI
F/
GIO
AEMI
F/
GIO
VDD
VDD
out L
out H
Async EMIF: Address Bus bit[00] Note that
the EM_A0 is always a 32-bit address
PINMUX2[1].EM_A0
_BA1,
GIO: GIO[056]
default set by
AECFG[0]
Async EMIF: Bank Address 1 signal = 16-bit
address.
PINMUX2[1].EM_A0
_BA1,
In 16-bit mode, lowest address bit.
default set by
AECFG[0]
In 8-bit mode, second lowest address bit
GIO: GIO[055]
EM_BA0 /
GIO054 /
EM_A14
N19
I/O
AEMI
F/
GIO
VDD
out H
Async EMIF: Bank Address 0 signal = 8-bit
address.
PINMUX2[3:2].EM_
BA0,
In 8-bit mode, lowest address bit.
default set by
AECFG[2:1]
Or, can be used as an extra Address line
(bit[14] when using 16-bit memories.
GIO: GIO[054]
EM_D15 /
GIO053
EM_D14 /
GIO052
EM_D13 /
GIO051
EM_D12 /
GIO050
EM_D11 /
GIO049
EM_D10 /
GIO048
M18
M19
M15
L18
L17
L19
I/O
I/O
I/O
I/O
I/O
I/O
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
AEMI
F/
GIO
VDD
VDD
VDD
VDD
VDD
VDD
in
in
in
in
in
in
Async EMIF: Data Bus bit[15]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[053]
default set by
AECFG[3]
Async EMIF: Data Bus bit[14]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[052]
default set by
AECFG[3]
Async EMIF: Data Bus bit[13]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[051]
default set by
AECFG[3]
Async EMIF: Data Bus bit[12]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[050]
default set by
AECFG[3]
Async EMIF: Data Bus bit[11]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[049]
default set by
AECFG[3]
Async EMIF: Data Bus bit[10]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[048]
default set by
AECFG[3]
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TMS320DM355
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
www.ti.com
Table 2-23. DM355 Pin Descriptions (continued)
Name
EM_D09 /
GIO047
EM_D08 /
GIO046
BGA
ID
K18
L16
Type Group
(1)
I/O
I/O
AEMI
F/
GIO
AEMI
F/
GIO
Power
Supply (2)
VDD
VDD
Description (4)
PU Reset
PD (3) State
in
in
EM_D07 /
GIO045
K19
I/O
AEMI
F/
GIO
VDD
in
EM_D06 /
GIO044
K17
I/O
AEMI
F/
GIO
VDD
in
EM_D05 /
GIO043
J19
I/O
AEMI
F/
GIO
VDD
in
EM_D04 /
GIO042
L15
I/O
AEMI
F/
GIO
VDD
in
EM_D03 /
GIO041
J18
I/O
AEMI
F/
GIO
VDD
in
EM_D02 /
GIO040
H19
I/O
AEMI
F/
GIO
VDD
in
EM_D01 /
GIO039
J17
I/O
AEMI
F/
GIO
VDD
in
EM_D00 /
GIO038
H18
I/O
AEMI
F/
GIO
VDD
in
Mux Control
Async EMIF: Data Bus bit[09]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[047]
default set by
AECFG[3]
Async EMIF: Data Bus bit[08]
PINMUX2[4].EM_D1
5_8,
GIO: GIO[046]
default set by
AECFG[3]
Async EMIF: Data Bus bit[07]
PINMUX2[5].EM_D7
_0
GIO: GIO[045]
Async EMIF: Data Bus bit[06]
PINMUX2[5].EM_D7
_0
GIO: GIO[044]
Async EMIF: Data Bus bit[05]
PINMUX2[5].EM_D7
_0
GIO: GIO[043]
Async EMIF: Data Bus bit[04]
PINMUX2[5].EM_D7
_0
GIO: GIO[042]
Async EMIF: Data Bus bit[03]
PINMUX2[5].EM_D7
_0
GIO: GIO[041]
Async EMIF: Data Bus bit[02]
PINMUX2[5].EM_D7
_0
GIO: GIO[040]
Async EMIF: Data Bus bit[01]
PINMUX2[5].EM_D7
_0
GIO: GIO[039]
Async EMIF: Data Bus bit[00]
PINMUX2[5].EM_D7
_0
GIO: GIO[038]
EM_CE0 /
GIO037
J16
I/O
AEMI
F/
GIO
VDD
out H
EM_CE1 /
GIO036
G19
I/O
AEMI
F/
GIO
VDD
out H
Async EMIF: Lowest numbered Chip Select. PINMUX2[6].EM_CE
Can be programmed to be used for standard 0
asynchronous memories (example:flash),
OneNand or NAND memory. Used for the
default boot and ROM boot modes.
GIO: GIO[037]
Async EMIF: Second Chip Select., Can be
programmed to be used for standard
asynchronous memories (example: flash),
OneNand or NAND memory.
PINMUX2[7].EM_CE
1
GIO: GIO[036]
48
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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Table 2-23. DM355 Pin Descriptions (continued)
Name
EM_WE /
GIO035
BGA
ID
J15
Type Group
(1)
I/O
AEMI
F/
GIO
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
VDD
out H
Mux Control
Async EMIF: Write Enable
PINMUX2[8].EM_W
E_OE
NAND/SM/xD: WE (Write Enable) output
GIO: GIO[035]
EM_OE /
GIO034
F19
I/O
AEMI
F/
GIO
VDD
out H
Async EMIF: Output Enable
PINMUX2[8].EM_W
E_OE
NAND/SM/xD: RE (Read Enable) output
GIO: GIO[034]
EM_WAIT /
GIO033
G18
I/O
AEMI
F/
GIO
VDD
PU
in H
Async EMIF: Async WAIT
PINMUX2[9].EM_W
AIT
NAND/SM/xD: RDY/_BSY input
GIO: GIO[033]
EM_ADV /
GIO032
H16
I/O
AEMI
F/
GIO
VDD
PD
in L
EM_CLK /
GIO031
E19
I/O
AEMI
F/
GIO
VDD
out L
ASP0_DX /
GIO030
H15
I/O
ASP0
/ GIO
VDD
in
ASP0_CLKX /
GIO029
F18
I/O
ASP0
/ GIO
VDD
in
ASP0_FSX /
GIO028
G17
I/O
ASP0
/ GIO
VDD
in
ASP0_DR /
GIO027
E18
I/O
ASP0
/ GIO
VDD
in
ASP0_CLKR /
GIO026
F17
I/O
ASP0
/ GIO
VDD
in
OneNAND: Address Valid Detect for
OneNAND interface
PINMUX2[10].EM_A
DV
GIO: GIO[032]
OneNAND: Clock signal for OneNAND flash
interface
PINMUX2[11].EM_C
LK
GIO: GIO[031]
ASP0: Transmit Data
PINMUX3[0].GIO30
GIO: GIO[030]
ASP0: Transmit Clock
PINMUX3[1].GIO29
GIO: GIO[029]
ASP0: Transmit Frame Synch
PINMUX3[2].GIO28
GIO: GIO[028]
ASP0: Receive Data
PINMUX3[3].GIO27
GIO: GIO[027]
ASP0: Receive Clock
PINMUX3[4].GIO26
GIO: GIO[026]
ASP0_FSR /
GIO025
F16
I/O
ASP0
/ GIO
VDD
in
ASP0: Receive Frame Synch
PINMUX3[5].GIO25
GIO: GIO[025]
MMCSD1_CLK /
GIO024
C15
I/O
MMC
SD /
GIO
VDD
in
MMCSD1: Clock
PINMUX3[6].GIO24
GIO: GIO[024]
MMCSD1_CMD
/ GIO023
A17
I/O
MMC
SD /
GIO
VDD
in
MMCSD1: Command
PINMUX3[7].GIO23
GIO: GIO[023]
Device Overview
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TMS320DM355
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www.ti.com
Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
MMCSD1_DAT
A3 / GIO022 /
UART2_RTS
B16
Type Group
(1)
I/O
MMC
SD /
GIO /
UART
2
Power
Supply (2)
VDD
Description (4)
PU Reset
PD (3) State
in
MMCSD1: DATA3
Mux Control
PINMUX3[9:8].GIO2
2
GIO: GIO[022]
UART2: RTS
MMCSD1_DAT
A2 / GIO021 /
UART2_CTS
A16
I/O
MMC
SD /
GIO /
UART
2
VDD
in
MMCSD1: DATA2
PINMUX3[11:10].GI
O21
GIO: GIO[021]
UART2: CTS
MMCSD1_DAT
A1 / GIO020 /
UART2_RXD
B15
I/O
MMC
SD /
GIO /
UART
2
VDD
in
MMCSD1: DATA1
PINMUX3[13:12].GI
O20
GIO: GIO[020]
UART2: Receive Data
MMCSD1_DAT
A0 / GIO019 /
UART2_TXD
A18
I/O
MMC
SD /
GIO /
UART
2
VDD
in
MMCSD1: DATA0
PINMUX3[15:14].GI
O19
GIO: GIO[019]
UART2: Transmit Data
CLKOUT1 /
GIO018
D12
I/O
Clocks
/ GIO
VDD
in
CLKOUT2 /
GIO017
A11
I/O
Clocks
/ GIO
VDD
in
CLKOUT3 /
GIO016
C11
I/O
Clocks
/ GIO
VDD
in
I2C_SDA /
GIO015
R13
I/O
I2C /
GIO
VDD
in
I2C_SCL /
GIO014
R14
I/O
I2C /
GIO
VDD
in
UART1_RXD /
GIO013
R15
I/O
UART
1/
GIO
VDD
in
UART1_TXD /
GIO012
R17
I/O
UART
1/
GIO
VDD
in
SPI1_SDENA[0]
/ GIO011
E13
I/O
SPI1 /
GIO
VDD
in
CLKOUT: Output Clock 1
PINMUX3[16].GIO1
8
GIO: GIO[018]
CLKOUT: Output Clock 2
PINMUX3[17].GIO1
7
GIO: GIO[017]
CLKOUT: Output Clock 3
PINMUX3[18].GIO1
6
GIO: GIO[016]
I2C: Serial Data
PINMUX3[19].GIO1
5
GIO: GIO[015]
I2C: Serial Clock
PINMUX3[20].GIO1
4
GIO: GIO[014]
UART1: Receive Data
PINMUX3[21].GIO1
3
GIO: GIO[013]
UART1: Transmit Data
PINMUX3[22].GIO1
2
GIO: GIO[012]
SPI1: Chip Select 0
PINMUX3[23].GIO1
1
GIO: GIO[011]
50
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SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
Type Group
(1)
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
SPI1_SCLK /
GIO010
C13
I/O
SPI1 /
GIO
VDD
in
SPI1_SDI /
GIO009 /
SPI1_SDENA[1]
A13
I/O
SPI1 /
GIO /
SPI1
VDD
in
SPI1_SDO /
GIO008
E12
I/O
SPI1 /
GIO
VDD
in
GIO007 /
SPI0_SDENA[1]
C17
I/O
GIO
debou
nce /
SPI0
VDD
in
GIO006
B18
I/O
GIO
debou
nce
VDD
in
GIO: GIO[006]
GIO005
D15
I/O
GIO
debou
nce
VDD
in
GIO: GIO[005]
GIO004
B17
I/O
GIO
debou
nce
VDD
in
GIO: GIO[004]
GIO003
G15
I/O
GIO
debou
nce
VDD
in
GIO: GIO[003]
GIO002
F15
I/O
GIO
debou
nce
VDD
in
GIO: GIO[002]
GIO001
E14
I/O
GIO
debou
nce
VDD
in
GIO: GIO[001]
GIO000
C16
I/O
GIO
debou
nce
VDD
in
GIO: GIO[000]
Note: The GIO000 pin must be held high
during NAND boot for the boot process to
fuction properly.
USB_DP
A7
A I/O USBP
HY
VDDA33_USB
USB D+ (differential signal pair)
USB_DM
A6
A I/O USBP
HY
VDDA33_USB
USB D- (differential signal pair)
USB_R1
C7
A I/O USBP
HY
Mux Control
SPI1: Clock
PINMUX3[24].GIO1
0
GIO: GIO[010]
SPI1: Data In -OR- SPI1: Chip Select 1
PINMUX3[26:25].GI
O9
GIO: GIO[009]
SPI1: Data Out
PINMUX3[27].GIO8
GIO: GIO[008]
GIO: GIO[007]
PINMUX3[28].GIO7
SPI0: Chip Select 1
USB Reference current output
Connect to VSS_USB_REF via 10K Ω ±1%
resistor placed as close to the device as
possible.
USB_ID
D5
A I/O USBP
HY
VDDA33_USB
USB operating mode identification pin
For Device mode operation only, pull up this
pin to VDD with a 1.5K ohm resistor.
For Host mode operation only, pull down this
pin to ground (VSS) with a 1.5K ohm resistor.
If using an OTG or mini-USB connector, this
pin will be set properly via the
cable/connector configuration.
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Table 2-23. DM355 Pin Descriptions (continued)
Name
USB_VBUS
BGA
ID
Type Group
E5
A I/O USBP
HY
(1)
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
Mux Control
For host or device mode operation, tie the
VBUS/USB power signal to the USB
connector.
When used in OTG mode operation, tie
VBUS to the external charge pump and to
the VBUS signal on the USB connector.
When the USB is not used, tie VBUS to
VSS_USB.
USB_DRVVBU
S
C5
VSS_USB_REF
C8
O
USBP
HY
VDD
Digital output to control external 5 V supply
GND USBP
HY
VDD
USB Ground Reference
Connect directly to ground and to USB_R1
via 10K Ω ±1% resistor placed as close to
the device as possible.
VDDA33_USB
J8
PWR USBP
HY
VDD
Analog 3.3 V power USB PHY (Transceiver)
VSS_USB
B7
GND USBP
HY
VDD
Analog 3.3 V ground for USB PHY
(Transceiver)
VDDA33_USB_PLL
B6
PWR USBP
HY
VDD
Common mode 3.3 V power for USB PHY
(PLL)
VSS_USB
D6
GND USBP
HY
VDD
Common mode 3.3 V ground for USB PHY
(PLL)
VDDA13_USB
H7
PWR USBP
HY
VDD
Analog 1.3 V power for USB PHY
VSS_USB
E6
GND USBP
HY
VDD
Analog 1.3 V ground for USB PHY
VDDD13_USB
C6
PWR USBP
HY
VDD
Digital 1.3 V power for USB PHY
MMCSD0_CLK
A15
I/O
MMC
SD0
VDD
out L
MMCSD0_CMD
C14
I/O
MMC
SD0
VDD
MMCSD0_DAT
A3
A14
I/O
MMC
SD0
MMCSD0_DAT
A2
B13
I/O
MMCSD0_DAT
A1
D14
MMCSD0_DAT
A0
MMCSD0: Clock
PINMUX4[2].MMCS
D0_MS
in
MMCSD0: Command
PINMUX4[2].MMCS
D0_MS
VDD
in
MMCSD0: DATA3
PINMUX4[2].MMCS
D0_MS
MMC
SD0
VDD
in
MMCSD0: DATA2
PINMUX4[2].MMCS
D0_MS
I/O
MMC
SD0
VDD
in
MMCSD0: DATA1
PINMUX4[2].MMCS
D0_MS
B14
I/O
MMC
SD0
VDD
in
MMCSD0: DATA0
PINMUX4[2].MMCS
D0_MS
UART0_RXD
U18
I
UART
0
VDD
in
UART0: Receive Data
UART0_TXD
T18
O
UART
0
VDD
out H
SPI0_SDENA[0]
/ GIO103
B12
I/O
SPI0 /
GIO
VDD
in
Used for UART boot mode
UART0: Transmit Data
Used for UART boot mode
SPI0: Enable / Chip Select 0
PINMUX4[0].SPI0_S
DENA
GIO: GIO[103]
SPI0_SCLK
C12
I/O
SPI0
VDD
in
SPI0: Clock
SPI0_SDI /
GIO102
A12
I/O
SPI0 /
GIO
VDD
in
SPI0: Data In
SPI0_SDO
B11
I/O
SPI0
VDD
in
PINMUX4[1].SPI0_S
DI
GIO: GIO[102]
52
SPI0: Data Out
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Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
Type Group
(1)
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
ASP1_DX
C18
I/O
ASP1
VDD
in
ASP1: Transmit Data
ASP1_CLKX
D19
I/O
ASP1
VDD
in
ASP1: Transmit Clock
ASP1_FSX
E16
I/O
ASP1
VDD
in
ASP1: Transmit Frame Sync
ASP1_DR
C19
I/O
ASP1
VDD
in
ASP1: Receive Data
ASP1_CLKR
D18
I/O
ASP1
VDD
in
ASP1: Receive Clock
ASP1_FSR
E17
I/O
ASP1
VDD
in
ASP1: Receive Frame Synch
ASP1_CLKS
D17
I
ASP1
VDD
in
ASP1: Master Clock
RESET
D11
I
in
Global Chip Reset (active low)
A9
I
Clocks
VDD
in
Crystal input for system oscillator (24 MHz)
MXO1
B9
O
Clocks
VDD
out
MXI2
R1
I
Clocks
VDD
in
MXO2
T1
O
Clocks
VDD
out
MXI1
VDD
PU
Mux Control
Output for system oscillator (24 MHz)
Crystal input for video oscillator (27 MHz).
This crystal is not required
VDD
Output for video oscillator (27 MHz). This
crystal is not required.
VDD
TCK
E10
I
EMUL
ATIO
N
VDD
PU
in
JTAG test clock input
TDI
D9
I
EMUL
ATIO
N
VDD
PU
in
JTAG test data input
TDO
E9
O
EMUL
ATIO
N
VDD
TMS
D8
I
EMUL
ATIO
N
VDD
TRST
C9
I
EMUL
ATIO
N
VDD
RTCK
E11
O
EMUL
ATIO
N
VDD
EMU0
E8
I/O
EMUL
ATIO
N
VDD
EMUL
ATIO
N
VDD
out L
JTAG test data output
PU
in
JTAG test mode select
PD
in
JTAG test logic reset (active low)
PU
out L
JTAG test clock output
in
JTAG emulation 0 I/O
VDD
VDD
EMU1
E7
I/O
PU
in
JTAG emulation 1 I/O
EMU[1:0] = 00 - Force Debug Scan chain
(ARM and ARM ETB TAPs connected)
EMU[1:0] = 11 - Normal Scan chain (ICEpick
only)
RSV01
J1
A
I/O/Z
Reserved. This signal should be left as a No
Connect or connected to VSS.
RSV02
K1
A
I/O/Z
Reserved. This signal should be left as a No
Connect or connected to VSS.
RSV03
L1
A
I/O/Z
Reserved. This signal should be left as a No
Connect or connected to VSS.
RSV04
M1
A
I/O/Z
Reserved. This signal should be left as a No
Connect or connected to VSS.
RSV05
N2
A
I/O/Z
Reserved. This signal should be connected
to VSS.
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Table 2-23. DM355 Pin Descriptions (continued)
Name
BGA
ID
Type Group
(1)
Power
Supply (2)
Description (4)
PU Reset
PD (3) State
RSV06
M2
PWR
Reserved. This signal should be connected
to VSS.
RSV07
K2
GND
Reserved. This signal should be connected
to VSS.
NC
H8
VDD_VIN
P6
PWR
Power for Digital Video Input IO (3.3 V)
VDD_VIN
P7
PWR
Power for Digital Video Input IO (3.3 V)
VDD_VIN
P8
PWR
Power for Digital Video Input IO (3.3 V)
VDD_VOUT
F6
PWR
Power for Digital Video Output IO (3.3 V)
VDD_VOUT
F7
PWR
Power for Digital Video Output IO (3.3 V)
VDD_VOUT
F8
PWR
Power for Digital Video Output IO (3.3 V)
VDD_DDR
M9
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
P9
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
P10
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
P11
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
P12
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
P13
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
P14
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
R9
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
R12
PWR
Power for DDR I/O (1.8 V)
VDD_DDR
T14
PWR
Power for DDR I/O (1.8 V)
VDDA_PLL1
G12
PWR
Analog Power for PLL1 (1.3 V)
VDDA_PLL2
H9
PWR
Analog Power for PLL2 (1.3 V)
CVDD
A1
PWR
Core power (1.3 V)
CVDD
A10
PWR
Core power (1.3 V)
CVDD
B19
PWR
Core power (1.3 V)
CVDD
C4
PWR
Core power (1.3 V)
CVDD
G6
PWR
Core power (1.3 V)
CVDD
G11
PWR
Core power (1.3 V)
CVDD
H10
PWR
Core power (1.3 V)
CVDD
H13
PWR
Core power (1.3 V)
CVDD
H17
PWR
Core power (1.3 V)
CVDD
J11
PWR
Core power (1.3 V)
CVDD
J12
PWR
Core power (1.3 V)
CVDD
J13
PWR
Core power (1.3 V)
CVDD
K6
PWR
Core power (1.3 V)
CVDD
K11
PWR
Core power (1.3 V)
CVDD
K12
PWR
Core power (1.3 V)
CVDD
L11
PWR
Core power (1.3 V)
CVDD
L12
PWR
Core power (1.3 V)
CVDD
N6
PWR
Core power (1.3 V)
CVDD
R7
PWR
Core power (1.3 V)
CVDD
R8
PWR
Core power (1.3 V)
CVDD
T17
PWR
Core power (1.3 V)
CVDD
W19
PWR
Core power (1.3 V)
VDD
F9
PWR
Power for Digital IO (3.3 V)
VDD
F10
PWR
Power for Digital IO (3.3 V)
54
Mux Control
No connect
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Table 2-23. DM355 Pin Descriptions (continued)
Name
Type Group
VDD
F11
PWR
Power for Digital IO (3.3 V)
VDD
F12
PWR
Power for Digital IO (3.3 V)
VDD
F13
PWR
Power for Digital IO (3.3 V)
VDD
F14
PWR
Power for Digital IO (3.3 V)
VDD
G8
PWR
Power for Digital IO (3.3 V)
VDD
G14
PWR
Power for Digital IO (3.3 V)
VDD
K8
PWR
Power for Digital IO (3.3 V)
VDD
K15
PWR
Power for Digital IO (3.3 V)
VDD
L6
PWR
Power for Digital IO (3.3 V)
VDD
L13
PWR
Power for Digital IO (3.3 V)
VDD
M10
PWR
Power for Digital IO (3.3 V)
VDD
M11
PWR
Power for Digital IO (3.3 V)
VDD
M12
PWR
Power for Digital IO (3.3 V)
VDD
M13
PWR
Power for Digital IO (3.3 V)
VDD
N11
PWR
Power for Digital IO (3.3 V)
VDD
N12
PWR
Power for Digital IO (3.3 V)
VSS_MX1
C10
GND
System oscillator (24 MHz) - ground
VSS_MX2
P1
GND
Video oscillator (27 MHz) - ground
H12
GND
Analog Ground for PLL1
VSSA_PLL2
J9
GND
Analog Ground for PLL2
VSS
A5
GND
Digital ground
VSS
A8
GND
Digital ground
VSS
A19
GND
Digital ground
VSS
B5
GND
Digital ground
VSS
B8
GND
Digital ground
VSS
B10
GND
Digital ground
VSS
D1
GND
Digital ground
VSS
E2
GND
Digital ground
VSS
E15
GND
Digital ground
VSS
G2
GND
Digital ground
VSS
G9
GND
Digital ground
VSS
H1
GND
Digital ground
VSS
H2
GND
Digital ground
VSS
H6
GND
Digital ground
VSS
H11
GND
Digital ground
VSS
H14
GND
Digital ground
VSS
J2
GND
Digital ground
VSS
J6
GND
Digital ground
VSS
J10
GND
Digital ground
VSS
J14
GND
Digital ground
VSS
K3
GND
Digital ground
VSS
K9
GND
Digital ground
VSS
K10
GND
Digital ground
VSS
K14
GND
Digital ground
VSS
L2
GND
Digital ground
VSS
L9
GND
Digital ground
VSSA_PLL1
(1)
Power
Supply (2)
Description (4)
BGA
ID
PU Reset
PD (3) State
Mux Control
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Table 2-23. DM355 Pin Descriptions (continued)
Name
Type Group
VSS
L10
GND
Digital ground
VSS
L14
GND
Digital ground
VSS
M6
GND
Digital ground
VSS
M7
GND
Digital ground
VSS
M8
GND
Digital ground
VSS
M14
GND
Digital ground
VSS
M17
GND
Digital ground
VSS
N1
GND
Digital ground
VSS
N8
GND
Digital ground
VSS
N9
GND
Digital ground
VSS
N14
GND
Digital ground
VSS
R2
GND
Digital ground
VSS
R6
GND
Digital ground
VSS
T2
GND
Digital ground
VSS
T5
GND
Digital ground
VSS
T15
GND
Digital ground
VSS
U1
GND
Digital ground
VSS
U2
GND
Digital ground
VSS
U3
GND
Digital ground
VSS
U4
GND
Digital ground
VSS
U9
GND
Digital ground
VSS
U14
GND
Digital ground
VSS
U17
GND
Digital ground
VSS
V1
GND
Digital ground
VSS
V18
GND
Digital ground
VSS
W1
GND
Digital ground
56
(1)
Power
Supply (2)
Description (4)
BGA
ID
PU Reset
PD (3) State
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2.21 Device Support
2.21.1 Development Tools
TI offers an extensive line of development tools for DM355 systems, including tools to evaluate the
performance of the processors, generate code, develop algorithm implementations, and fully integrate and
debug software and hardware modules. The tools support documentation is electronically available within
the Code Composer Studio™ Integrated Development Environment (IDE).
The following products support development of DM355 based applications:
Software Development Tools:
Code Composer Studio™ Integrated Development Environment (IDE): including Editor
C/C++/Assembly Code Generation, and Debug plus additional development tools
Hardware Development Tools:
Extended Development System (XDS™) Emulator (supports TMS320DM355 DMSoC multiprocessor
system debug) EVM (Evaluation Module)
For a complete listing of development-support tools for the TMS320DM355 DMSoC platform, visit the
Texas Instruments web site on the Worldwide Web at http://www.ti.com. For information on pricing and
availability, contact the nearest TI field sales office or authorized distributor.
2.21.2
Device Nomenclature
To designate the stages in the product development cycle, TI assigns prefixes to the part numbers of all
DSP devices and support tools. Each DSP commercial family member has one of three prefixes: TMX,
TMP, or TMS (e.g., ). Texas Instruments recommends two of three possible prefix designators for its
support tools: TMDX and TMDS. These prefixes represent evolutionary stages of product development
from engineering prototypes (TMX/TMDX) through fully qualified production devices/tools (TMS/TMDS).
Device development evolutionary flow:
TMX
Experimental device that is not necessarily representative of the final device's electrical
specifications.
TMP
Final silicon die that conforms to the device's electrical specifications but has not completed
quality and reliability verification.
TMS
Fully-qualified production device.
Support tool development evolutionary flow:
TMDX
Development-support product that has not yet completed Texas Instruments internal
qualification testing.
TMDS
Fully qualified development-support product.
TMX and TMP devices and TMDX development-support tools are shipped against the following
disclaimer:
"Developmental product is intended for internal evaluation purposes."
TMS devices and TMDS development-support tools have been characterized fully, and the quality and
reliability of the device have been demonstrated fully. TI's standard warranty applies.
Predictions show that prototype devices (TMX or TMP) have a greater failure rate than the standard
production devices. Texas Instruments recommends that these devices not be used in any production
system because their expected end-use failure rate is undefined. Only qualified production devices are to
be used in production.
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TI device nomenclature also includes a suffix with the device family name. This suffix indicates the
package type (for example, ZCE), the temperature range (for example, "Blank" is the commercial
temperature range), and the device speed range in megahertz (for example, 202 is 202.5 MHz). The
following figure provides a legend for reading the complete device name for any TMS320DM355 DMSoC
platform member.
TMS 320
DM355 ( ) ZCE (
) (
)
SPEED GRADE
135 or 13 = 135 MHz
216 or 21 = 216 MHz
270 = 270 MHz (with 216 MHz Max DDR)
27J = 270 MHz (with 198 MHz Max DDR)
PREFIX
TMX = Experimental device
TMS = Qualified device
TEMPERATURE RANGE (DEFAULT: 0°C TO 85°C)
Blank = 0°C to 85°C, commercial temperature
A = –40°C to 100°C, extended temperature
DEVICE FAMILY
320 = TMS320 DSPfamily
PACKAGE TYPE(A)
ZCE = 337-pin plastic BGA, with Pb-free soldered balls
DEVICE(B)
DM355
SILICON REVISION
(C)
A. BGA = Ball Grid Array
B. For actual device part numbers (P/Ns) and ordering information, contact your nearest TI Sales representative.
C. For more information on silicon revision, see TMS320DM355 DMSoC Silicon Errata (literature number SPRZ264).
Figure 2-5. Device Nomenclature
2.21.3 Device Documentation
2.21.3.1 Related Documentation From Texas Instruments
The following documents describe the TMS320DM35x Digital Media System-on-Chip (DMSoC). Copies of
these documents are available on the internet at www.ti.com.
58
SPRS463
TMS320DM355 Digital Media System-on-Chip (DMSoC) Data Manual This document
describes the overall TMS320DM355 system, including device architecture and features,
memory map, pin descriptions, timing characteristics and requirements, device mechanicals,
etc.
SPRZ264
TMS320DM355 DMSoC Silicon Errata Describes the known exceptions to the functional
specifications for the TMS320DM355 DMSoC.
SPRUFB3
TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference
Guide This document describes the ARM Subsystem in the TMS320DM35x Digital Media
System-on-Chip (DMSoC). The ARM subsystem is designed to give the ARM926EJ-S
(ARM9) master control of the device. In general, the ARM is responsible for configuration
and control of the device; including the components of the ARM Subsystem, the peripherals,
and the external memories.
SPRUED1
TMS320DM35x Digital Media System-on-Chip (DMSoC) Asynchronous External
Memory Interface (EMIF) Reference Guide This document describes the asynchronous
external memory interface (EMIF) in the TMS320DM35x Digital Media System-on-Chip
(DMSoC). The EMIF supports a glueless interface to a variety of external devices.
SPRUED2
TMS320DM35x Digital Media System-on-Chip (DMSoC) Universal Serial Bus (USB)
Controller Reference Guide This document describes the universal serial bus (USB)
controller in the TMS320DM35x Digital Media System-on-Chip (DMSoC). The USB controller
supports data throughput rates up to 480 Mbps. It provides a mechanism for data transfer
between USB devices and also supports host negotiation.
SPRUED3
TMS320DM35x Digital Media System-on-Chip (DMSoC) Audio Serial Port (ASP)
Device Overview
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Reference Guide This document describes the operation of the audio serial port (ASP)
audio interface in the TMS320DM35x Digital Media System-on-Chip (DMSoC). The primary
audio modes that are supported by the ASP are the AC97 and IIS modes. In addition to the
primary audio modes, the ASP supports general serial port receive and transmit operation,
but is not intended to be used as a high-speed interface.
SPRUED4
TMS320DM35x Digital Media System-on-Chip (DMSoC) Serial Peripheral Interface (SPI)
Reference Guide This document describes the serial peripheral interface (SPI) in the
TMS320DM35x Digital Media System-on-Chip (DMSoC). The SPI is a high-speed
synchronous serial input/output port that allows a serial bit stream of programmed length (1
to 16 bits) to be shifted into and out of the device at a programmed bit-transfer rate. The SPI
is normally used for communication between the DMSoC and external peripherals. Typical
applications include an interface to external I/O or peripheral expansion via devices such as
shift registers, display drivers, SPI EPROMs and analog-to-digital converters.
SPRUED9
TMS320DM35x Digital Media System-on-Chip (DMSoC) Universal Asynchronous
Receiver/Transmitter (UART) Reference Guide This document describes the universal
asynchronous receiver/transmitter (UART) peripheral in the TMS320DM35x Digital Media
System-on-Chip (DMSoC). The UART peripheral performs serial-to-parallel conversion on
data received from a peripheral device, and parallel-to-serial conversion on data received
from the CPU.
SPRUEE0
TMS320DM35x Digital Media System-on-Chip (DMSoC) Inter-Integrated Circuit (I2C)
Peripheral Reference Guide This document describes the inter-integrated circuit (I2C)
peripheral in the TMS320DM35x Digital Media System-on-Chip (DMSoC). The I2C peripheral
provides an interface between the DMSoC and other devices compliant with the I2C-bus
specification and connected by way of an I2C-bus. External components attached to this
2-wire serial bus can transmit and receive up to 8-bit wide data to and from the DMSoC
through the I2C peripheral. This document assumes the reader is familiar with the I2C-bus
specification.
SPRUEE2
TMS320DM35x Digital Media System-on-Chip (DMSoC) Multimedia Card (MMC)/Secure
Digital (SD) Card Controller Reference Guide This document describes the multimedia
card (MMC)/secure digital (SD) card controller in the TMS320DM35x Digital Media
System-on-Chip (DMSoC). The MMC/SD card is used in a number of applications to provide
removable data storage. The MMC/SD controller provides an interface to external MMC and
SD cards. The communication between the MMC/SD controller and MMC/SD card(s) is
performed by the MMC/SD protocol.
SPRUEE4
TMS320DM35x Digital Media System-on-Chip (DMSoC) Enhanced Direct Memory
Access (EDMA) Controller Reference Guide This document describes the operation of the
enhanced direct memory access (EDMA3) controller in the TMS320DM35x Digital Media
System-on-Chip (DMSoC). The EDMA controller's primary purpose is to service
user-programmed data transfers between two memory-mapped slave endpoints on the
DMSoC.
SPRUEE5
TMS320DM35x Digital Media System-on-Chip (DMSoC) 64-bit Timer Reference Guide
This document describes the operation of the software-programmable 64-bit timers in the
TMS320DM35x Digital Media System-on-Chip (DMSoC). Timer 0, Timer 1, and Timer 3 are
used as general-purpose (GP) timers and can be programmed in 64-bit mode, dual 32-bit
unchained mode, or dual 32-bit chained mode; Timer 2 is used only as a watchdog timer.
The GP timer modes can be used to generate periodic interrupts or enhanced direct memory
access (EDMA) synchronization events and Real Time Output (RTO) events (Timer 3 only).
The watchdog timer mode is used to provide a recovery mechanism for the device in the
event of a fault condition, such as a non-exiting code loop.
SPRUEE6
TMS320DM35x Digital Media System-on-Chip (DMSoC) General-Purpose Input/Output
(GPIO) Reference Guide This document describes the general-purpose input/output (GPIO)
Device Overview
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peripheral in the TMS320DM35x Digital Media System-on-Chip (DMSoC). The GPIO
peripheral provides dedicated general-purpose pins that can be configured as either inputs
or outputs. When configured as an input, you can detect the state of the input by reading the
state of an internal register. When configured as an output, you can write to an internal
register to control the state driven on the output pin.
60
SPRUEE7
TMS320DM35x Digital Media System-on-Chip (DMSoC) Pulse-Width Modulator (PWM)
Reference Guide This document describes the pulse-width modulator (PWM) peripheral in
the TMS320DM35x Digital Media System-on-Chip (DMSoC).
SPRUEH7
TMS320DM35x Digital Media System-on-Chip (DMSoC) DDR2/Mobile DDR
(DDR2/mDDR) Memory Controller Reference Guide This document describes the
DDR2/mDDR memory controller in the TMS320DM35x Digital Media System-on-Chip
(DMSoC). The DDR2/mDDR memory controller is used to interface with JESD79D-2A
standard compliant DDR2 SDRAM and mobile DDR devices.
SPRUF71
TMS320DM35x Digital Media System-on-Chip (DMSoC) Video Processing Front End
(VPFE) Reference Guide This document describes the Video Processing Front End (VPFE)
in the TMS320DM35x Digital Media System-on-Chip (DMSoC).
SPRUF72
TMS320DM35x Digital Media System-on-Chip (DMSoC) Video Processing Back End
(VPBE) Reference Guide This document describes the Video Processing Back End (VPBE)
in the TMS320DM35x Digital Media System-on-Chip (DMSoC).
SPRUF74
TMS320DM35x Digital Media System-on-Chip (DMSoC) Real-Time Out (RTO) Controller
Reference Guide This document describes the Real Time Out (RTO) controller in the
TMS320DM35x Digital Media System-on-Chip (DMSoC).
SPRUFC8
TMS320DM35x Digital Media System-on-Chip (DMSoC) Peripherals Overview
Reference Guide This document provides an overview of the peripherals in the
TMS320DM35x Digital Media System-on-Chip (DMSoC).
SPRAAR3
Implementing DDR2/mDDR PCB Layout on the TMS320DM35x DMSoC This provides
board design recommendations and guidelines for DDR2 and mobile DDR.
SPRAAR7
USB 2.0 Board Design and Layout Guidelines
recommendations and guidelines for high speed USB.
Device Overview
This
provides
board
design
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3 Detailed Device Description
This section provides a detailed overview of the DM355 device.
3.1
ARM Subsystem Overview
The ARM Subsystem contains components required to provide the ARM926EJ-S (ARM) master control of
the overall DM355 system, including the components of the ARM Subsystem, the peripherals, and the
external memories.
The ARM is responsible for handling system functions such as system-level initialization, configuration,
user interface, user command execution, connectivity functions, interface and control of the subsystem,
etc. The ARM is master and performs these functions because it has a large program memory space and
fast context switching capability, and is thus suitable for complex, multi-tasking, and general-purpose
control tasks.
3.1.1
Components of the ARM Subsystem
The ARM Subsystem in DM355 consists of the following components:
• ARM926EJ-S RISC processor, including:
– coprocessor 15 (CP15)
– MMU
– 16KB Instruction cache
– 8KB Data cache
– Write Buffer
– Java accelerator
• ARM Internal Memories
– 32KB Internal RAM (32-bit wide access)
– 8KB Internal ROM (ARM bootloader for non-AEMIF boot options)
• Embedded Trace Module and Embedded Trace Buffer (ETM/ETB)
• System Control Peripherals
– ARM Interrupt Controller
– PLL Controller
– Power and Sleep Controller
– System Control Module
The ARM also manages/controls all the device peripherals:
• DDR2 / mDDR EMIF Controller
• AEMIF Controller, including the OneNAND and NAND flash interface
• Enhanced DMA (EDMA)
• UART
• Timers
• Real Time Out (RTO)
• Pulse Width Modulator (PWM)
• Inter-IC Communication (I2C)
• Multi-Media Card/Secure Digital (MMC/SD)
• Audio Serial Port (ASP)
• Universal Serial Bus Controller (USB)
• Serial Port Interface (SPI)
• Video Processing Front End (VPFE)
– CCD Controller (CCDC)
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– Image Pipe (IPIPE)
– H3A Engine (Hardware engine for computing Auto-focus, Auto white balance, and Auto exposure)
Video Processing Back End (VPBE)
– On Screen Display (OSD)
– Video Encoder Engine (VENC)
Figure 3-1 shows the functional block diagram of the DM355 ARM Subsystem.
Master
IF
ARM
Interrupt
Controller
(AINTC)
Master IF
Arbiter
Arbiter
I-AHB
D-AHB
System
Control
I-TCM
D-TCM
Slave
Arbiter
16K I$
CP15
8K D$
MMU
8K
ROM
16K
RAM1
PLLC2
IF
16K
RAM0
CFG Bus
DMA Bus
ARM926EJ-S
PLLC1
Power
Sleep
Controller
(PSC)
Peripherals
...
Figure 3-1. DM355 ARM Subsystem Block Diagram
3.2
ARM926EJ-S RISC CPU
The ARM Subsystem integrates the ARM926EJ-S processor. The ARM926EJ-S processor is a member of
ARM9 family of general-purpose microprocessors. This processor is targeted at multi-tasking applications
where full memory management, high performance, low die size, and low power are all important. The
ARM926EJ-S processor supports the 32-bit ARM and 16 bit THUMB instruction sets, enabling the user to
trade off between high performance and high code density. Specifically, the ARM926EJ-S processor
supports the ARMv5TEJ instruction set, which includes features for efficient execution of Java byte codes,
providing Java performance similar to Just in Time (JIT) Java interpreter, but without associated code
overhead.
The ARM926EJ-S processor supports the ARM debug architecture and includes logic to assist in both
hardware and software debug. The ARM926EJ-S processor has a Harvard architecture and provides a
complete high performance subsystem, including:
• ARM926EJ -S integer core
• CP15 system control coprocessor
• Memory Management Unit (MMU)
• Separate instruction and data Caches
• Write buffer
• Separate instruction and data Tightly-Coupled Memories (TCMs) [internal RAM] interfaces
• Separate instruction and data AHB bus interfaces
62
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Embedded Trace Module and Embedded Trace Buffer (ETM/ETB)
For more complete details on the ARM9, refer to the ARM926EJ-S Technical Reference Manual, available
at http://www.arm.com
3.2.1
CP15
The ARM926EJ-S system control coprocessor (CP15) is used to configure and control instruction and
data caches, Tightly-Coupled Memories (TCMs), Memory Management Unit (MMU), and other ARM
subsystem functions. The CP15 registers are programmed using the MRC and MCR ARM instructions,
when the ARM in a privileged mode such as supervisor or system mode.
3.2.2
MMU
The ARM926EJ-S MMU provides virtual memory features required by operating systems such as Linux,
WindowCE, ultron, ThreadX, etc. A single set of two level page tables stored in main memory is used to
control the address translation, permission checks and memory region attributes for both data and
instruction accesses. The MMU uses a single unified Translation Lookaside Buffer (TLB) to cache the
information held in the page tables. The MMU features are:
• Standard ARM architecture v4 and v5 MMU mapping sizes, domains and access protection scheme.
• Mapping sizes are:
– 1MB (sections)
– 64KB (large pages)
– 4KB (small pages)
– 1KB (tiny pages)
• Access permissions for large pages and small pages can be specified separately for each quarter of
the page (subpage permissions)
• Hardware page table walks
• Invalidate entire TLB, using CP15 register 8
• Invalidate TLB entry, selected by MVA, using CP15 register 8
• Lockdown of TLB entries, using CP15 register 10
3.2.3
Caches and Write Buffer
The size of the Instruction Cache is 16KB, Data cache is 8KB. Additionally, the Caches have the following
features:
• Virtual index, virtual tag, and addressed using the Modified Virtual Address (MVA)
• Four-way set associative, with a cache line length of eight words per line (32-bytes per line) and with
two dirty bits in the Dcache
• Dcache supports write-through and write-back (or copy back) cache operation, selected by memory
region using the C and B bits in the MMU translation tables.
• Critical-word first cache refilling
• Cache lockdown registers enable control over which cache ways are used for allocation on a line fill,
providing a mechanism for both lockdown, and controlling cache corruption
• Dcache stores the Physical Address TAG (PA TAG) corresponding to each Dcache entry in the TAG
RAM for use during the cache line write-backs, in addition to the Virtual Address TAG stored in the
TAG RAM. This means that the MMU is not involved in Dcache write-back operations, removing the
possibility of TLB misses related to the write-back address.
• Cache maintenance operations provide efficient invalidation of, the entire Dcache or Icache, regions of
the Dcache or Icache, and regions of virtual memory.
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The write buffer is used for all writes to a noncachable bufferable region, write-through region and write
misses to a write-back region. A separate buffer is incorporated in the Dcache for holding write-back for
cache line evictions or cleaning of dirty cache lines. The main write buffer has 16-word data buffer and a
four-address buffer. The Dcache write-back has eight data word entries and a single address entry.
3.2.4
Tightly Coupled Memory (TCM)
ARM internal RAM is provided for storing real-time and performance-critical code/data and the Interrupt
Vector table. ARM internal ROM boot options include—NAND (with SPI EEPROM Boot option), SPI,
UART and MMC/SD. The RAM and ROM memories interfaced to the ARM926EJ-S via the tightly coupled
memory interface that provides for separate instruction and data bus connections. Since the ARM TCM
does not allow instructions on the D-TCM bus or data on the I-TCM bus, an arbiter is included so that both
data and instructions can be stored in the internal RAM/ROM. The arbiter also allows accesses to the
RAM/ROM from extra-ARM sources (e.g., EDMA or other masters). The ARM926EJ-S has built-in DMA
support for direct accesses to the ARM internal memory from a non-ARM master. Because of the
time-critical nature of the TCM link to the ARM internal memory, all accesses from non-ARM devices are
treated as DMA transfers.
Instruction and Data accesses are differentiated via accessing different memory map regions, with the
instruction region from 0x0000 through 0x7FFF and data from 0x10000 through 0x17FFF. Placing the
instruction region at 0x0000 is necessary to allow the ARM Interrupt Vector table to be placed at 0x0000,
as required by the ARM architecture. The internal 32-KB RAM is split into two physical banks of 16KB
each, which allows simultaneous instruction and data accesses to be accomplished if the code and data
are in separate banks.
3.2.5
Advanced High-performance Bus (AHB)
The ARM Subsystem uses the AHB port of the ARM926EJ-S to connect the ARM to the configuration bus
and the external memories. Arbiters are employed to arbitrate access to the separate D-AHB and I-AHB
by the configuration bus and the external memories bus.
3.2.6
Embedded Trace Macrocell (ETM) and Embedded Trace Buffer (ETB)
To support real-time trace, the ARM926EJ-S processor provides an interface to enable connection of an
Embedded Trace Macrocell (ETM). The ARM926ES-J Subsystem in DM355 also includes the Embedded
Trace Buffer (ETB). The ETM consists of two parts:
• Trace Port provides real-time trace capability for the ARM9.
• Triggering facilities provide trigger resources, which include address and data comparators, counter,
and sequencers.
The DM355 trace port is not pinned out and is instead only connected to the Embedded Trace Buffer. The
ETB has a 4KB buffer memory. ETB enabled debug tools are required to read/interpret the captured trace
data.
3.3
Memory Mapping
The ARM memory map is shown in Table 2-2 and Table 2-3. This section describes the memories and
interfaces within the ARM's memory map.
3.3.1
ARM Internal Memories
The ARM has access to the following ARM internal memories:
• 32KB ARM Internal RAM on TCM interface, logically separated into two 16KB pages to allow
simultaneous access on any given cycle if there are separate accesses for code (I-TCM bus) and data
(D-TCM) to the different memory regions.
• 8KB ARM Internal ROM
64
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3.3.2
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External Memories
The ARM has access to the following External memories:
• DDR2 / mDDR Synchronous DRAM
• Asynchronous EMIF / OneNAND
• NAND Flash
• Flash card devices:
– MMC/SD
– xD
– SmartMedia
3.3.3
Peripherals
The ARM has access to all of the peripherals on the DM355 device.
3.4
ARM Interrupt Controller (AINTC)
The DM355 ARM Interrupt Controller (AINTC) has the following features:
• Supports up to 64 interrupt channels (16 external channels)
• Interrupt mask for each channel
• Each interrupt channel can be mapped to a Fast Interrupt Request (FIQ) or to an Interrupt Request
(IRQ) type of interrupt.
• Hardware prioritization of simultaneous interrupts
• Configurable interrupt priority (2 levels of FIQ and 6 levels of IRQ)
• Configurable interrupt entry table (FIQ and IRQ priority table entry) to reduce interrupt processing time
The ARM core supports two interrupt types: FIQ and IRQ. See the ARM926EJ-S Technical Reference
Manual for detailed information about the ARM’s FIQ and IRQ interrupts. Each interrupt channel is
mappable to an FIQ or to an IRQ type of interrupt, and each channel can be enabled or disabled. The
INTC supports user-configurable interrupt-priority and interrupt entry addresses. Entry addresses minimize
the time spent jumping to interrupt service routines (ISRs). When an interrupt occurs, the corresponding
highest priority ISR’s address is stored in the INTC’s ENTRY register. The IRQ or FIQ interrupt routine can
read the ENTRY register and jump to the corresponding ISR directly. Thus, the ARM does not require a
software dispatcher to determine the asserted interrupt.
3.4.1
Interrupt Mapping
The AINTC takes up to 64 ARM device interrupts and maps them to either the IRQ or to the FIQ of the
ARM. Each interrupt is also assigned one of 8 priority levels (2 for FIQ, 6 for IRQ). For interrupts with the
same priority level, the priority is determined by the hardware interrupt number (the lowest number has the
highest priority). Table 3-1 shows the connection of device interrupts to the ARM.
Table 3-1. AINTC Interrupt Connections (1)
(1)
Interrupt
Number
Acronym
Source
0
VPSSINT0
VPSS - INT0,
Configurable via
VPSSBL register:
INTSEL
1
VPSSINT1
2
VPSSINT2
Interrupt
Number
Acronym
Source
32
TINT0
Timer 0 - TINT12
VPSS - INT1
33
TINT1
Timer 0 - TINT34
VPSS - INT2
34
TINT2
Timer 1 - TINT12
The total number of interrupts in DM355 exceeds 64, which is the maximum value of the AINTC module. Therefore, several interrupts
are multiplexed and you must use the register ARM_INTMUX in the System Control Module to select the interrupt source for multiplexed
interrupts. Refer to TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature number
SPRUFB3) for more information on the System Control Module register ARM_INTMUX.
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Table 3-1. AINTC Interrupt Connections
66
Interrupt
Number
Acronym
Source
3
VPSSINT3
VPSS - INT3
4
VPSSINT4
VPSS - INT4
5
VPSSINT5
6
VPSSINT6
7
Interrupt
Number
(1)
(continued)
Acronym
Source
35
TINT3
Timer 1 - TINT34
36
PWMINT0
PWM0
VPSS - INT5
37
PWMINT1
PWM 1
VPSS - INT6
38
PWMINT2
PWM2
VPSSINT7
VPSS - INT7
39
I2CINT
I2C
8
VPSSINT8
VPSS - INT8
40
UARTINT0
UART0
9
Reserved
41
UARTINT1
UART1
10
Reserved
42
SPINT0-0
SPI0
11
Reserved
43
SPINT0-1
SPI0
12
USBINT
USB OTG Collector
44
GPIO0
GPIO
13
RTOINT or
TINT4
RTO or
Timer 2 - TINT12
SYS.ARM_INTMUX
45
GPIO1
GPIO
14
UARTINT2 or
TINT5
UART2 or
Timer 2 - TINT34
46
GPIO2
GPIO
15
TINT6
Timer 3 TINT12
47
GPIO3
GPIO
16
CCINT0
EDMA CC Region 0
48
GPIO4
GPIO
17
SPINT1-0 or
CCERRINT
SPI1 or
EDMA CC Error
49
GPIO5
GPIO
18
SPINT1-1 or
TCERRINT0
SPI1 or
EDMA TC0 Error
50
GPIO6
GPIO
19
SPINT2-0 or
TCERRINT1
SPI2 or
EDMA TC1 Error
51
GPIO7
GPIO
20
PSCINT
PSC - ALLINT
52
GPIO8
GPIO
21
SPINT2-1
SPI2
53
GPIO9
GPIO
22
TINT7
Timer3 - TINT34
54
GPIOBNK0
GPIO
23
SDIOINT0
MMC/SD0
55
GPIOBNK1
GPIO
24
MBXINT0 or
MBXINT1
ASP0 or
ASP1
56
GPIOBNK2
GPIO
25
MBRINT0 or
MBRINT1
ASP0 or
ASP1
57
GPIOBNK3
GPIO
26
MMCINT0
MMC/SD0
58
GPIOBNK4
GPIO
27
MMCINT1
MMC/SC1
59
GPIOBNK5
GPIO
28
PWMINT3
PWM3
60
GPIOBNK6
GPIO
29
DDRINT
DDR EMIF
61
COMMTX
ARMSS
30
AEMIFINT
Async EMIF
62
COMMRX
ARMSS
31
SDIOINT1
SDIO1
63
EMUINT
E2ICE
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3.5
3.5.1
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Device Clocking
Overview
The DM355 requires one primary reference clock . The reference clock frequency may be generated
either by crystal input or by external oscillator. The reference clock is the clock at the pins named
MXI1/MXO1. The reference clock drives two separate PLL controllers (PLLC1 and PLLC2). PLLC1
generates the clocks required by the ARM, MPEG4 and JPEG coprocessor, VPBE, VPSS, and
peripherals. PLL2 generates the clock required by the DDR PHY. A block diagram of DM355's clocking
architecture is shown in Figure 3-2. The PLLs are described further in Section 3.6.
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SYSCLKBP
Reference Clock
(MXI/MXO)
24 MHz or 36 MHz
CLKOUT2
BPDIV (/3)
AUXCLK (/1)
AUXCLK
UART0, 1
SYSCLK1
PLLDIV1 (/2)
I2C
ARM Subsystem
MPEG/JPEG
Coprocessor
PWMs (x4)
Timers (x4)
RTO
CLKOUT1
PLLDIV2 (/4)
PLLDIV3 (/n)
PLLDIV4 (/4 or /2)
SYSCLK2
USB Phy
SYSCLK3
SYSCLK4
60 MHz
Reference
Clock
(MXI/MXO)
(24 MHz or
36 MHz)
USB
VPSS
EMIF/NAND
PLL Controller 1
MMC/SD (x2)
VPFE
PCLK
SPI (x3)
ASP (x2)
VPBE
EXTCLK
GPIO
ARM INTC
DAC
UART2
EDMA
PLLDIV1 (/1)
SYSCLK1
DDR PHY
Bus Logic
DDR
BPDIV (/8)
SYSCLKBP
Sys Logic
CLKOUT3
PSC
PLL Controller 2
IcePick
Sequencer
Figure 3-2. Device Clocking Block Diagram
68
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3.5.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Supported Clocking Configurations for DM355-135
This section describes the only supported device clocking configurations for DM355-135. The DM355
supports either 24 MHz (typical) or 36 MHz reference clock (crystal or external oscillator input).
Configurations are shown for both cases.
3.5.2.1
Supported Clocking Configurations for DM355-135 (24 MHz reference)
3.5.2.1.1 DM355-135 PLL1 (24 MHz reference)
All supported clocking configurations for DM355-135 PLL1 with 24 MHz reference clock are shown in
Table 3-2.
Table 3-2. PLL1 Supported Clocking Configurations for DM355-135 (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL1
VCO
ARM /
MPEG4 and JPEG
Coprocessor
(/8 fixed)
(m programmable)
(/2 or /1
programmable)
(MHz)
PLLDIV1
(/2 fixed)
bypass
bypass
bypass
bypass
8
180
2
270
8
162
2
8
144
2
8
126
8
108
Peripherals
SYSCLK1
(MHz)
PLLDIV2
(/4 fixed)
2
12
2
135
243
2
216
2
2
189
2
162
VENC
VPSS
SYSCLK2
(MHz)
PLLDIV3
(/n
programmable)
SYSCLK3
(MHz)
PLLDIV4
(/4 or /2
programmable)
SYSCLK4
(MHz)
4
6
10
2.4
4
6
4
67.5
10
27
2
135
121.5
4
60.75
9
27
2
121.5
108
4
54
8
27
2
108
2
94.5
4
47.25
7
27
2
94.5
2
81
4
40.5
6
27
2
81
3.5.2.1.2 DM355-135 PLL2 (24 MHz reference)
All supported clocking configurations for DM355-135 PLL2 with 24 MHz reference clock are shown in
Table 3-3.
Table 3-3. PLL2 Supported Clocking Configurations for DM355-135 (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
DDR PHY
DDR Clock
bypass
bypass
bypass
bypass
1
24
12
12
133
1
266
1
266
133
12
100
1
200
1
200
100
15
100
1
160
1
160
80
SYSCLK1
(MHz)
DDR_CLK
(MHz)
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Supported Clocking Configurations for DM355-135 (36 MHz reference)
3.5.2.2.1 DM355-135PLL1 (36 MHz reference)
All supported clocking configurations for DM355-135 PLL1 with 36 MHz reference clock are shown in
Table 3-4.
Table 3-4. PLL1 Supported Clocking Configurations DM355-135 (36 MHz reference)
PREDIV
PLLM
POSTDIV
PLL1
VCO
ARM /
MPEG4 and JPEG
Coprocessor
(/8 fixed)
(m
programmable)
(/2 or /1
programmable)
(MHz)
PLLDIV1
(/2 fixed)
bypass
bypass
bypass
bypass
8
120
2
270
8
108
2
8
96
2
Peripherals
SYSCLK1
(MHz)
PLLDIV2
(/4 fixed)
2
18
2
135
243
2
216
2
VENC
VPSS
SYSCLK2
(MHz)
PLLDIV3
(/n
programmable)
SYSCLK3
(MHz)
PLLDIV4
(/4 or /2
programmable)
SYSCLK4
(MHz)
4
9
10
3.6
4
18
4
67.5
10
27
2
135
121.5
4
60.75
9
27
2
121.5
108
4
54
8
27
2
108
3.5.2.2.2 DM355-135 PLL2 (36 MHz reference)
All supported clocking configurations for DM355-135 PLL2 with 36 MHz reference clock are shown in
Table 3-5.
Table 3-5. PLL2 Supported Clocking Configurations for DM355-135 (36 MHz reference)
70
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
bypass
bypass
bypass
bypass
1
36
18
18
133
1
266
1
266
133
27
150
1
200
1
200
100
27
120
1
160
1
160
80
Detailed Device Description
DDR PHY
DDR Clock
SYSCLK1
(MHz)
DDR_CLK
(MHz)
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3.5.3
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Supported Clocking Configurations for DM355-216
This section describes the only supported device clocking configurations for DM355-216. The DM355
supports either 24 MHz (typical) or 36 MHz reference clock (crystal or external oscillator input).
Configurations are shown for both cases.
3.5.3.1
Supported Clocking Configurations for DM355-216 (24 MHz reference)
3.5.3.1.1 DM355-216 PLL1 (24 MHz reference)
All supported clocking configurations for DM355-216 PLL1 with 24 MHz reference clock are shown in
Table 3-6.
Table 3-6. PLL1 Supported Clocking Configurations for DM355-216 (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL1
VCO
ARM /
MPEG4 and JPEG
Coprocessor
(/8 fixed)
(m programmable)
(/2 or /1
programmable)
(MHz)
PLLDIV1
(/2 fixed)
bypass
bypass
bypass
bypass
8
144
1
432
8
135
1
8
126
1
8
117
8
8
Peripherals
SYSCLK1
(MHz)
PLLDIV2
(/4 fixed)
2
12
2
216
405
2
378
2
1
351
2
108
1
324
99
1
297
8
180
2
270
8
162
2
243
8
144
2
216
8
126
2
189
8
108
2
162
VENC
VPSS
SYSCLK2
(MHz)
PLLDIV3
(/n
programmable)
SYSCLK3
(MHz)
PLLDIV4
(/4 or /2
programmable)
SYSCLK4
(MHz)
4
6
10
2.4
4
6
4
108
16
27
4
108
202.5
4
101.25
15
27
4
101.25
189
4
94.5
14
27
4
94.5
175.5
4
87.75
13
27
4
87.75
2
162
4
81
12
27
4
81
2
148.5
4
74.25
11
27
4
74.25
2
135
4
67.5
10
27
2
135
2
121.5
4
60.75
9
27
2
121.5
2
108
4
54
8
27
2
108
2
94.5
4
47.25
7
27
2
94.5
2
81
4
40.5
6
27
2
81
3.5.3.1.2 DM355-216 PLL2 (24 MHz reference)
All supported clocking configurations for DM355-216 PLL2 with 24 MHz reference clock are shown in
Table 3-7.
Table 3-7. PLL2 Supported Clocking Configurations for DM355-216 (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
DDR PHY
DDR Clock
bypass
bypass
bypass
bypass
1
24
12
8
114
1
342
1
342
171
8
108
1
324
1
324
162
8
102
1
306
1
306
153
8
96
1
288
1
288
144
12
133
1
266
1
266
133
12
100
1
200
1
200
100
15
100
1
160
1
160
80
SYSCLK1
(MHz)
DDR_CLK
(MHz)
Detailed Device Description
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3.5.3.2
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Supported Clocking Configurations for DM355-216 (36 MHz reference)
3.5.3.2.1 DM355-216 PLL1 (36 MHz reference)
All supported clocking configurations for DM355-216 PLL1 with 36 MHz reference clock are shown in
Table 3-8.
Table 3-8. PLL1 Supported Clocking Configurations DM355-216 (36 MHz reference)
PREDIV
PLLM
POSTDIV
PLL1
VCO
ARM /
MPEG4 and JPEG
Coprocessor
(/8 fixed)
(m programmable)
(/2 or /1
programmable)
(MHz)
PLLDIV1
(/2 fixed)
bypass
bypass
bypass
bypass
8
96
1
432
8
180
2
8
168
2
8
156
8
8
Peripherals
SYSCLK1
(MHz)
PLLDIV2
(/4 fixed)
2
18
2
216
405
2
378
2
2
351
2
144
2
324
132
2
297
8
120
2
270
8
108
2
243
8
96
2
216
VENC
VPSS
SYSCLK2
(MHz)
PLLDIV3
(/n
programmable)
SYSCLK3
(MHz)
PLLDIV4
(/4 or /2
programmable)
SYSCLK4
(MHz)
4
9
10
3.6
4
9
4
108
16
27
4
108
202.5
4
101.25
15
27
4
101.25
189
4
94.5
14
27
4
94.5
175.5
4
87.75
13
27
4
87.75
2
162
4
81
12
27
4
81
2
148.5
4
74.25
11
27
4
74.25
2
135
4
67.5
10
27
2
135
2
121.5
4
60.75
9
27
2
121.5
2
108
4
54
8
27
2
108
3.5.3.2.2 DM355-216 PLL2 (36 MHz reference)
All supported clocking configurations for DM355-216 PLL2 with 36 MHz reference clock are shown in
Table 3-9.
Table 3-9. PLL2 Supported Clocking Configurations for DM355-216 (36 MHz reference)
72
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
bypass
bypass
bypass
bypass
1
36
18
12
114
1
342
1
342
171
12
108
1
324
1
324
162
12
102
1
306
1
306
153
12
96
1
288
1
288
144
18
133
1
266
1
266
133
27
150
1
200
1
200
100
27
120
1
160
1
160
80
Detailed Device Description
DDR PHY
DDR Clock
SYSCLK1
(MHz)
DDR_CLK
(MHz)
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3.5.4
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Supported Clocking Configurations for DM355-270
This section describes the only supported device clocking configurations for DM355-270. The DM355
supports either 24 MHz (typical) or 36 MHz reference clock (crystal or external oscillator input).
Configurations are shown for both cases.
Note : DM355-270 devices support only commercial temperature ranges.
3.5.4.1
Supported Clocking Configurations for DM355-270 (24 MHz reference)
3.5.4.1.1 DM355-270 PLL1 (24 MHz reference)
All supported clocking configurations for DM355-270 PLL1 with 24 MHz reference clock are shown in
Table 3-10.
Table 3-10. PLL1 Supported Clocking Configurations for DM355-270 (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL1
VCO
ARM /
MPEG4 and JPEG
Coprocessor
(/8 fixed)
(m programmable)
(/2 or /1
programmable)
(MHz)
PLLDIV1
(/2 fixed)
bypass
bypass
bypass
bypass
2
12
8
180
1
540
2
270
8
171
1
513
2
8
162
1
486
2
8
153
1
459
2
8
144
1
432
8
135
1
405
8
126
1
378
8
117
1
351
8
108
1
324
8
99
1
297
8
180
2
270
8
162
2
243
8
144
2
216
8
126
2
189
8
108
2
162
Peripherals
SYSCLK1 PLLDIV2
(MHz)
(/4 fixed)
VENC
VPSS
SYSCLK2
(MHz)
PLLDIV3
(/n programmable)
SYSCLK3
(MHz)
PLLDIV4
(/4 or /2
programmable)
SYSCLK4
(MHz)
4
6
10
2.4
4
6
4
135
20
27
4
135
256.5
4
128.25
19
27
4
128.25
243
4
121.5
18
27
4
121.5
229.5
4
114.75
17
27
4
114.75
2
216
4
108
16
27
4
108
2
202.5
4
101.25
15
27
4
101.25
2
189
4
94.5
14
27
4
94.5
2
175.5
4
87.75
13
27
4
87.75
2
162
4
81
12
27
4
81
2
148.5
4
74.25
11
27
4
74.25
2
135
4
67.5
10
27
2
135
2
121.5
4
60.75
9
27
2
121.5
2
108
4
54
8
27
2
108
2
94.5
4
47.25
7
27
2
94.5
2
81
4
40.5
6
27
2
81
3.5.4.1.2 DM355-270 PLL2 (24 MHz reference)
All supported clocking configurations for DM355-270 PLL2 with 24 MHz reference clock are shown in
Table 3-11.
Table 3-11. PLL2 Supported Clocking Configurations for DM355-270 (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
DDR PHY
DDR Clock
bypass
bypass
bypass
bypass
1
24
12
8
144
1
432
1
432
216
8
138
1
414
1
414
207
8
132
1
396
1
396
198
8
126
1
378
1
378
189
8
120
1
360
1
360
180
8
114
1
342
1
342
171
8
108
1
324
1
324
162
8
102
1
306
1
306
153
8
96
1
288
1
288
144
12
133
1
266
1
266
133
SYSCLK1
(MHz)
DDR_CLK
(MHz)
Detailed Device Description
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Table 3-11. PLL2 Supported Clocking Configurations for DM355-270 (24 MHz reference) (continued)
PREDIV
PLLM
POSTDIV
PLL2 VCO
12
100
1
200
1
DDR PHY
200
DDR Clock
100
15
100
1
160
1
160
80
3.5.4.1.3 DM355-27J PLL2 (24 MHz reference)
All supported clocking configurations for DM355-27J PLL2 with 24 MHz reference clock are shown in
Table 3-12.
Table 3-12. PLL2 Supported Clocking Configurations for DM355-27J (24 MHz reference)
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
bypass
bypass
bypass
bypass
1
24
12
8
132
1
396
1
396
198
8
126
1
378
1
378
189
8
120
1
360
1
360
180
8
114
1
342
1
342
171
8
108
1
324
1
324
162
8
102
1
306
1
306
153
8
96
1
288
1
288
144
12
133
1
266
1
266
133
12
100
1
200
1
200
100
15
100
1
160
1
160
80
3.5.4.2
DDR PHY
DDR Clock
SYSCLK1
(MHz)
DDR_CLK
(MHz)
Supported Clocking Configurations for DM355-270 (36 MHz reference)
3.5.4.2.1 DM355-270 PLL1 (36 MHz reference)
All supported clocking configurations for DM355-270 PLL1 with 36 MHz reference clock are shown in
Table 3-13.
Table 3-13. PLL1 Supported Clocking Configurations for DM355-270 (36 MHz reference)
PREDIV
PLLM
POSTDIV
PLL1
VCO
ARM /
MPEG4 and JPEG
Coprocessor
(/8 fixed)
(m programmable)
(/2 or /1
programmab
(MHz)
PLLDIV1
(/2 fixed)
bypass
bypass
bypass
bypass
8
120
1
540
8
114
1
8
108
1
8
102
8
8
8
8
74
Peripherals
SYSCLK1
(MHz)
PLLDIV2
(/4 fixed)
2
18
2
270
513
2
486
2
1
459
2
96
2
432
180
2
405
168
2
378
156
2
351
8
144
2
324
8
132
2
297
8
120
2
270
8
108
2
243
8
96
2
216
VENC
VPSS
SYSCLK2
(MHz)
PLLDIV3
(/n programmable)
SYSCLK3
(MHz)
PLLDIV4
(/4 or /2
programmable)
4
9
10
3.6
4
18
4
135
20
27
4
135
256.5
4
128.25
19
27
4
128.25
243
4
121.5
18
27
4
121.5
229.5
4
114.75
17
27
4
114.75
2
216
4
108
16
27
4
108
2
202.5
4
101.25
15
27
2
202.5
2
189
4
94.5
14
27
2
189
2
175.5
4
87.75
13
27
2
175.5
2
162
4
81
12
27
2
162
2
148.5
4
74.25
11
27
2
148.5
2
135
4
67.5
10
27
2
135
2
121.5
4
60.75
9
27
2
121.5
2
108
4
54
8
27
2
108
Detailed Device Description
SYSCLK4
(MHz)
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3.5.4.2.2 DM355-270 PLL2 (36 MHz reference)
All supported clocking configurations for DM355-270 PLL2 with 36 MHz reference clock are shown in
Table 3-14.
Table 3-14. PLL2 Supported Clocking Configurations for DM355-270 (36 MHz reference)
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
DDR PHY
DDR Clock
bypass
bypass
bypass
bypass
1
36
18
12
144
1
432
1
432
216
12
138
1
414
1
414
207
12
132
1
396
1
396
198
12
126
1
378
1
378
189
12
120
1
360
1
360
180
12
114
1
342
1
342
171
12
108
1
324
1
324
162
12
102
1
306
1
306
153
12
96
1
288
1
288
144
18
133
1
266
1
266
133
27
150
1
200
1
200
100
27
120
1
160
1
160
80
SYSCLK1
(MHz)
DDR_CLK
(MHz)
Detailed Device Description
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3.5.4.2.3 DM355-27J PLL2 (36 MHz reference)
All supported clocking configurations for DM355-27J PLL2 with 36 MHz reference clock are shown in
Table 3-15.
Table 3-15. PLL2 Supported Clocking Configurations for DM355-27J (36 MHz reference)
76
PREDIV
PLLM
POSTDIV
PLL2 VCO
(/n programmable)
(m programmable)
(/1 fixed)
(MHz)
PLLDIV1
(/1 fixed)
bypass
bypass
bypass
bypass
1
36
18
12
132
1
396
1
396
198
12
126
1
378
1
378
189
12
120
1
360
1
360
180
12
114
1
342
1
342
171
12
108
1
324
1
324
162
12
102
1
306
1
306
153
12
96
1
288
1
288
144
18
133
1
266
1
266
133
27
150
1
200
1
200
100
27
120
1
160
1
160
80
Detailed Device Description
DDR PHY
DDR Clock
SYSCLK1
(MHz)
DDR_CLK
(MHz)
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3.5.5
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Peripheral Clocking Considerations
3.5.5.1
Video Processing Back End Clocking
The Video Processing Back End (VPBE) is a sub-module of the Video Processing Subsystem (VPSS).
The VPBE is designed to interface with a variety of LCDs and an internal DAC module. There are two
asynchronous clock domains in the VPBE: an internal clock domain and an external clock domain. The
internal clock domain is driven by the VPSS clock (PLL1 SYSCLK4). The external clock domain is
configurable; you can select one of five source:
• 24 MHz crystal input at MXI1
• 27 MHz crystal input at MXI2 (optional feature, not typically used)
• PLL1 SYSCLK3
• EXTCLK pin (external VPBE clock input pin)
• PCLK pin (VPFE pixel clock input pin)
See the TMS320DM35x Digital Media System-on-Chip Video Processing Back End (VPBE) Reference
Guide (literature number SPRUF72) for complete information on VPBE clocking.
3.5.5.2
USB Clocking
The USB Controller is driven by two clocks: an output clock of PLL1 (SYSCLK2) and an output clock of
the USB PHY.
NOTE
For proper USB 2.0 function, SYSCLK2 must be greater than 60 MHz.
The USB PHY takes an input clock that is configurable by the USB PHY clock source bits (PHYCLKSRC)
in the USB PHY control register (USB_PHY_CTL) in the System Control Module. When a 24 MHz crystal
is used at MXI1/MXO1, set PHYCLKSRC to 0. This will present a 24 MHz clock to the USB PHY. When a
36 MHz crystal is used at MXI1/MXO1, set PHYCLKSRC to 1. This will present a 12 MHz clock (36 MHz
divided internally by three) to the USB PHY. The USB PHY is capable of accepting only 24 MHz and 12
MHz; thus you must use either a 24 MHz or 36 MHz crystal at MXI1/MXO1. See the TMS320DM355
DMSoC Universal Serial Bus (USB) Controller User's Guide (literature number SPRUED2) for more
information. See the TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference
Guide (literature number SPRUFB3) for more information on the System Control Module.
Detailed Device Description
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3.6
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PLL Controller (PLLC)
This section describes the PLL Controllers for PLL1 and PLL2. See the TMS320DM35x Digital Media
System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature number SPRUFB3) for more
information on the PLL controllers.
3.6.1
PLL Controller Module
The DM355 has two PLL controllers that provide clocks to different components of the chip. PLL controller
1 (PLLC1) provides clocks to most of the components of the chip. PLL controller 2 (PLLC2) provides
clocks to the DDR PHY.
As
•
•
•
•
•
a module, the PLL controller provides the following:
Glitch-free transitions (on changing PLL settings)
Domain clocks alignment
Clock gating
PLL bypass
PLL power down
The various clock outputs given by the PLL controller are as follows:
• Domain clocks: SYSCLKn
• Bypass domain clock: SYSCLKBP
• Auxiliary clock from reference clock: AUXCLK
Various dividers that can be used are as follows:
• Pre-PLL divider: PREDIV
• Post-PLL divider: POSTDIV
• SYSCLK divider: PLLDIV1, …, PLLDIVn
• SYSCLKBP divider: BPDIV
Multipliers supported are as follows:
• PLL multiplier control: PLLM
78
Detailed Device Description
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3.6.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
PLLC1
PLLC1 provides most of the DM355 clocks. Software controls PLLC1 operation through the PLLC1
registers. The following list, Table 3-16, and Figure 3-3 describe the customizations of PLLC1 in the
DM355.
• Provides primary DM355 system clock
• Software configurable
• Accepts clock input or internal oscillator input
• PLL pre-divider value is fixed to (/8)
• PLL multiplier value is programmable
• PLL post-divider
• Only SYSCLK[4:1] are used
• SYSCLK1 divider value is fixed to (/2)
• SYSCLK2 divider value is fixed to (/4)
• SYSCLK3 divider value is programmable
• SYSCLK4 divider value is programmable to (/4) or (/2)
• SYSCLKBP divider value is fixed to (/3)
• SYSCLK1 is routed to the ARM Subsystem
• SYSCLK2 is routed to peripherals
• SYSCLK3 is routed to the VPBE module
• SYSCLK4 is routed to the VPSS module
• AUXCLK is routed to peripherals with fixed clock domain and also to the output pin CLKOUT1
• SYSCLKBP is routed to the output pin CLKOUT2
Table 3-16. PLLC1 Output Clocks
Output Clock
Used By
PLLDIV
Divider
Notes
SYSCLK1
ARM Subsystem / MPEG4 and JPEG Coprocessor
/2
Fixed divider
SYSCLK2
Peripherals
/4
Fixed divider
SYSCLK3
VPBE (VENC module)
/n
Programmable divider (used to get 27
MHz for VENC)
SYSCLK4
VPSS
/4 or /2
Programmable divider
AUXCLK
Peripherals, CLKOUT1
none
No divider
SYSCLKBP
CLKOUT2
/3
Fixed divider
Detailed Device Description
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CLKMODE
PLLEN
CLKIN
OSCIN
1
Pre-DIV
(/8)
PLL
Post-DIV
(/2 or /1)
PLLDIV2 (/4)
SYSCLK1
(ARM and MPEG4/
JPEG Coprocessor)
SYSCLK2
(Peripherals)
PLLDIV3 (/3)
SYSCLK3
(VPBE)
PLLDIV4
(/4 or /2)
SYSCLK4
(VPSS)
1
PLLDIV1 (/2)
0
0
PLLM
(Programmable)
AUXCLK
(Peripherals,
CLKOUT1)
BPDIV (/3)
SYSCLKBP
(CLKOUT2)
Figure 3-3. PLLC1 Configuration in DM355
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PLLC2
PLLC2 provides the DDR PHY clock and CLKOUT3. Software controls PLLC2 operation through the
PLLC2 registers. The following list, Table 3-17, and Figure 3-4 describe the customizations of PLLC2 in
the DM355.
• Provides DDR PHY clock and CLKOUT3
• Software configurable
• Accepts clock input or internal oscillator input (same input as PLLC1)
• PLL pre-divider value is programmable
• PLL multiplier value is programmable
• PLL post-divider value is fixed to (/1)
• Only SYSCLK[1] is used
• SYSCLK1 divider value is fixed to (/1)
• SYSCLKBP divider value is fixed to (/8)
• SYSCLK1 is routed to the DDR PHY
• SYSCLKBP is routed to the output pin CLKOUT3
• AUXCLK is not used.
Table 3-17. PLLC2 Output Clocks
Output Clock
Used by
PLLDIV Divider
Notes
SYSCLK1
DDR PHY
/1
Fixed divider
SYSCLKBP
CLKOUT3
/8
Fixed divider
CLKMODE
PLLEN
CLKIN
OSCIN
1
Pre-DIV
(Programmable)
PLL
Post-DIV
(/1)
1
0
PLLDIV1 (/1)
SYSCLK1
(DDR PHY)
BPDIV (/8)
SYSCLKBP
(CLKOUT3)
0
PLLM
(Programmable)
Figure 3-4. PLLC2 Configuration in DM355
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Power and Sleep Controller (PSC)
In the DM355 system, the Power and Sleep Controller (PSC) is responsible for managing transitions of
system power on/off, clock on/off, and reset. A block diagram of the PSC is shown in Figure 3-5. Many of
the operations of the PSC are transparent to software, such as power-on-reset operations. However, the
PSC provides you with an interface to control several important clock and reset operations.
The PSC includes the following features:
• Manages chip power-on/off, clock on/off, and resets
• Provides a software interface to:
– Control module clock ON/OFF
– Control module resets
• Supports IcePick emulation features: power, clock, and reset
For more information on the PSC, see the TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM
Subsystem Reference Guide (literature number SPRUFB3) .
DMSoC
PLLC
clks
arm_clock
PSC
ARM
arm_mreset
arm_power
Interrupt
AINTC
Emulation
RESET
module_clock
MODx
module_mreset
Always on
domain
VDD
module_power
Figure 3-5. DM355 Power and Sleep Controller (PSC)
3.8
System Control Module
The DM355’s system control module is a system-level module containing status and top-level control logic
required by the device. The system control module consists of a miscellaneous set of status and control
registers, accessible by the ARM and supporting all of the following system features and operations:
• Device identification
• Device configuration
– Pin multiplexing control
– Device boot configuration status
• ARM interrupt and EDMA event multiplexing control
• Special peripheral status and control
– Timer64+
– USB PHY control
– VPSS clock and video DAC control and status
– DDR VTP control
– Clockout circuitry
– GIO de-bounce control
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•
Power management
– Deep sleep mode
Bandwidth Management
– Bus master DMA priority control
For more information on the System Control Module refer to TMS320DM35x Digital Media
System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature number SPRUFB3) .
•
3.9
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Pin Multiplexing
The DM355 makes extensive use of pin multiplexing to accommodate the large number of peripheral
functions in the smallest possible package. In order to accomplish this, pin multiplexing is controlled using
a combination of hardware configuration (at device reset) and software control. No attempt is made by the
DM355 hardware to ensure that the proper pin muxing has been selected for the peripherals or interface
mode being used, thus proper pin muxing configuration is the responsibility of the board and software
designers. An overview of the pin multiplexing is shown in Table 3-18.
Table 3-18. Peripheral Pin Mux Overview
Peripheral
Muxed With
Primary Function
Secondary Function
Tertiary Function
VPFE (video in)
GPIO and SPI2
VPFE (video in)
SPI2
GPIO
VPBE (video out)
GPIO, PWM, and RTO
VPBE (video out)
PWM and RTO
GPIO
AEMIF
GPIO
AEMIF
GPIO
none
ASP0
GPIO
ASP0
GPIO
none
MMC/SD1
GPIO and UART2
MMC/SD1
GPIO
UART2
CLKOUT
GPIO
CLKOUT
GPIO
none
I2C
GPIO
I2C
GPIO
none
UART1
GPIO
UART1
GPIO
none
SPI1
GPIO
SPI1
GPIO
none
SPI0
GPIO
SPI0
GPIO
none
3.9.1
Hardware Controlled Pin Multiplexing
Use the Asynchronous EMIF configuration pins (AECFG[3:0]) for hardware pin mux control. AECFG[3:0]
control the partitioning of the AEMIF addresses and GPIOs at reset, which allows you to properly
configure the number of AEMIF address pins required by the boot device while unused addresses pins are
available as GPIOs. These settings may be changed by software after reset by programming the PinMux2
register The PinMux2 register is in the System Control Module. As shown in Table 3-19, the number of
address bits enabled on the AEMIF is selectable from 0 to 16. Pins that are not assigned to another
peripheral and not enabled as address signals become GPIOs (except EM_A[2:1]). The enabled address
signals are always contiguous from EM_BA[1] upwards; bits cannot be skipped. The exception to this are
EM_A[2:1]. These signals (can be used to) represent the ALE and CLE signals for the NAND Flash mode
of the AEMIF and are always enabled. Note that EM_A[0] does not represent the lowest AEMIF address
bit. DM355 supports only 16-bit and 8-bit data widths for the AEMIF. In 16-bit mode, EM_BA[1] represents
the LS address bit (the half-word address) and EM_BA[0] represents the MS address bit (A[14]). In 8-bit
mode, EM_BA[1:0] represent the 2 LS address bits. Note that additional selections are available by
programming the PinMux2 register in software after boot. Note that AECFG selection of ‘0010’ selects
OneNAND interface. The AEMIF needs to operate in the half-rate mode (full_rate = 0) to meet frequency
requirements. Software should not change the PINMUX2 register setting to affect the AEMIF rate
operation. A soft reset of the AEMIF should be performed any time a rate change is made.
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Table 3-19. AECFG (Async EMIF Configuration) Pin Mux Coding
1101(NAND)
1100
1010
1000 (8-bit SRAM)
0010 (16-bit SRAM,
OneNAND)
0000
GPIO[54]
GPIO[54]
EM_A[14]
EM_BA[0]
EM_A[14]
EM_BA[0]
GPIO[55]
EM_BA[1]
EM_BA[1]
EM_BA[1]
EM_BA[1]
EM_BA[1]
GPIO[56]
EM_A[0]
EM_A[0]
EM_A[0]
EM_A[0]
EM_A[0]
EM_A[1]
EM_A[1]
EM_A[1]
EM_A[1]
EM_A[1]
EM_A[1]
EM_A[2]
EM_A[2]
EM_A[2]
EM_A[2]
EM_A[2]
EM_A[2]
GPIO[57]
EM_A[3]
EM_A[3]
EM_A[3]
EM_A[3]
EM_A[3]
GPIO[58]
EM_A[4]
EM_A[4]
EM_A[4]
EM_A[4]
EM_A[4]
GPIO[59]
EM_A[5]
EM_A[5]
EM_A[5]
EM_A[5]
EM_A[5]
GPIO[60]
EM_A[6]
EM_A[6]
EM_A[6]
EM_A[6]
EM_A[6]
GPIO[61]
EM_A[7]
EM_A[7]
EM_A[7]
EM_A[7]
EM_A[7]
GPIO[62]
EM_A[8]
EM_A[8]
EM_A[8]
EM_A[8]
EM_A[8]
GPIO[63]
EM_A[9]
EM_A[9]
EM_A[9]
EM_A[9]
EM_A[9]
GPIO[64]
EM_A[10]
EM_A[10]
EM_A[10]
EM_A[10]
EM_A[10]
GPIO[65]
EM_A[11]
EM_A[11]
EM_A[11]
EM_A[11]
EM_A[11]
GPIO[66]
EM_A[12]
EM_A[12]
EM_A[12]
EM_A[12]
EM_A[12]
GPIO[67]
EM_A[13]
EM_A[13]
EM_A[13]
EM_A[13]
EM_A[13]
GPIO[46]
GPIO[46]
GPIO[46]
GPIO[46]
EM_D[8]
EM_D[8]
GPIO[47]
GPIO[47]
GPIO[47]
GPIO[47]
EM_D[9]
EM_D[9]
GPIO[48]
GPIO[48]
GPIO[48]
GPIO[48]
EM_D[10]
EM_D[10]
GPIO[49]
GPIO[49]
GPIO[49]
GPIO[49]
EM_D[11]
EM_D[11]
GPIO[50]
GPIO[50]
GPIO[50]
GPIO[50]
EM_D[12]
EM_D[12]
GPIO[51]
GPIO[51]
GPIO[51]
GPIO[51]
EM_D[13]
EM_D[13]
GPIO[52]
GPIO[52]
GPIO[52]
GPIO[52]
EM_D[14]
EM_D[14]
GPIO[53]
GPIO[53]
GPIO[53]
GPIO[53]
EM_D[15]
EM_D[15]
3.9.2
Software Controlled Pin Multiplexing
All pin multiplexing options are configurable by software via pin mux registers that reside in the System
Control Module. The PinMux0 Register controls the Video In muxing, PinMux1 register controls Video Out
signals, PinMux2 register controls AEMIF signals, PinMux3 registers control the multiplexing of the GIO
signals, the PinMux4 register controls the SPI and MMC/SD0 signals. Refer to TMS320DM35x Digital
Media System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature numberSPRUFB3) for
complete descriptions of the pin mux registers.
3.10 Device Reset
There are five types of reset in DM355. The types of reset differ by how they are initiated and/or by their
effect on the chip. Each type is briefly described in Table 3-20 and further described in TMS320DM35x
Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature number SPRUFB3).
Table 3-20. Reset Types
Type
Initiator
Effect
POR (Power-On-Reset)
RESET pin low and TRST low
Total reset of the chip (cold reset). Resets all modules
including memory and emulation.
Warm Reset
RESET pin low and TRST high (initiated by ARM
emulator).
Resets all modules including memory, except ARM
emulation.
Max Reset
ARM emulator or Watchdog Timer (WDT).
Same effect as warm reset.
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Table 3-20. Reset Types (continued)
Type
Initiator
Effect
System Reset
ARM emulator
Resets all modules except memory and ARM
emulation. It is a soft reset that maintains memory
contents and does not affect or reset clocks or power
states.
Module Reset
ARM software
Resets a specific module. Allows the ARM to
independently reset any module. Module reset is
intended as a debug tool not as a tool to use in
production.
3.11 Default Device Configurations
After POR, warm reset, and max reset, the chip is in its default configuration. This section highlights the
default configurations associated with PLLs, clocks, ARM boot mode, and AEMIF.
NOTE
Default configuration is the configuration immediately after POR, warm reset, and max reset
and just before the boot process begins. The boot ROM updates the configuration. See
Section 3.12 for more information on the boot process.
3.11.1 Device Configuration Pins
The device configuration pins are described in Table 3-21. The device configuration pins are latched at
reset and allow you to configure all of the following options at reset:
• ARM Boot Mode
• Asynchronous EMIF pin configuration
These pins are described further in the following sections.
NOTE
The device configuration pins are multiplexed with AEMIF pins. After the device configuration
pins are sampled at reset, they automatically change to function as AEMIF pins. Pin
multiplexing is described in Section 3.8.
Table 3-21. Device Configuration
Device
Configuration Input
Sampled
Pin
Function
Default Setting (by
internal
pull-up/
pull-down)
Device Configuration Affected
BTSEL[1:0]
Selects ARM boot mode
00 = Boot from ROM (NAND
with SPI EEPROM boot
option)
01 = Boot from AEMIF
10 = Boot from ROM
(MMC/SD)
11 = Boot from ROM (UART)
EM_A[13:12]
00
(NAND)
If any ROM boot mode is selected, GIO61
is used to indicated boot status.
If NAND boot is selected, CE0 is used for
NAND and SPI0 is used for SPI boot
option. Use AECFG[3:0] to configure
AEMIF pins for NAND.
If AEMIF boot is selected, CE0 is used for
AEMIF device (OneNAND, ROM). Use
AECFG[3:0] to configure AEMIF pins for
NAND.
If MMC/SD boot is selected, MMC/SD0 is
used.
AECFG[3:0]
Selects AEMIF pin
configuration
EM_A[11:8]
1101
(NAND)
Selects the AEMIF pin configuration. Refer
to pin-muxing information in Section 3.9.1.
Note that AECFG[3:0] affects both AEMIF
(BTSEL[1:0]=01) and NAND
(BTSEL[1:0]=00) boot modes.
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3.11.2 PLL Configuration
After POR, warm reset, and max reset, the PLLs and clocks are set to their default configurations. The
PLLs are in bypass mode and disabled by default. This means that the input reference clock at MXI1
(typically 24 MHz) drives the chip after reset. For more information on device clocking, see Section 3.5
and Section 3.6. The default state of the PLLs is reflected in the default state of the register bits in the
PLLC registers. Refer to TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem
Reference Guide (literature number SPRUFB3) for PLLC register descriptions.
3.11.3 Power Domain and Module State Configuration
Only a subset of modules are enabled after reset by default. Table 3-22 shows which modules are
enabled after reset. Table 3-22 as shows that the following modules are enabled depending on the
sampled state of the device configuration pins: EDMA (CC, TC0 and TC1), AEMIF, MMC/SD0, UART0,
and Timer0. For example, UART0 is enabled after reset when the device configuration pins (BTSEL[1:0] =
11 - Enable UART) select UART boot mode. For more information on module configuration refer to
TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature
number SPRUFB3).
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Table 3-22. Module Configuration
Default States
Module
Number
Module Name
Power Domain
Power Domain State
Module State
0
VPSS Master
AlwaysOn
ON
SyncRst
1
VPSS Slave
AlwaysOn
ON
2
EDMA (CC)
AlwaysOn
ON
3
EDMA (TC0)
AlwaysOn
ON
4
EDMA (TC1)
AlwaysOn
ON
5
Timer3
AlwaysOn
ON
SyncRst
6
SPI1
AlwaysOn
ON
SyncRst
7
MMC/SD1
AlwaysOn
ON
SyncRst
8
ASP1
AlwaysOn
ON
SyncRst
SyncRst
BTSEL[1:0] = 00 – Enable (NAND, SPI)
BTSEL[1:0] = 01 – Enable (OneNAND)
BTSEL[1:0] = 10 – SyncRst (MMC/SD)
BTSEL[1:0] = 11 – Enable (UART)
9
USB
AlwaysOn
ON
SyncRst
10
PWM3
AlwaysOn
ON
SyncRst
11
SPI2
AlwaysOn
ON
SyncRst
12
RTO
AlwaysOn
ON
SyncRst
13
DDR EMIF
AlwaysOn
ON
14
AEMIF
AlwaysOn
ON
SyncRst
BTSEL[1:0] = 00 – Enable (NAND, SPI)
BTSEL[1:0] = 01 – Enable (OneNAND)
BTSEL[1:0] = 10 – SyncRst (MMC/SD)
BTSEL[1:0] = 11 – Enable (UART)
15
MMC/SD0
AlwaysOn
ON
BTSEL[1:0] = 00 – SyncRst (NAND, SPI)
BTSEL[1:0] = 01 – SyncRst (OneNAND)
BTSEL[1:0] = 10 – Enable (MMC/SD)
BTSEL[1:0] = 11 – SyncRst (UART)
16
Reserved
Reserved
Reserved
Reserved
17
ASP
AlwaysOn
ON
SyncRst
18
I2C
AlwaysOn
ON
SyncRst
19
UART0
AlwaysOn
ON
BTSEL[1:0] = 00 – SyncRst (NAND, SPI)
BTSEL[1:0] = 01 – SyncRst (OneNAND)
BTSEL[1:0] = 10 – SyncRst (MMC/SD)
BTSEL[1:0] = 11 – Enable (UART)
20
UART1
AlwaysOn
ON
21
UART2
AlwaysOn
ON
22
SPI0
AlwaysOn
ON
SyncRst
SyncRst
BTSEL[1:0] = 00 – Enable (NAND, SPI)
BTSEL[1:0] = 01 – SyncRst (OneNAND)
BTSEL[1:0] = 10 – Enable (MMC/SD)
BTSEL[1:0] = 11 – Enable (UART)
23
PWM0
AlwaysOn
ON
SyncRst
24
PWM1
AlwaysOn
ON
SyncRst
25
PWM2
AlwaysOn
ON
SyncRst
26
GPIO
AlwaysOn
ON
SyncRst
27
TIMER0
AlwaysOn
ON
BTSEL[1:0] = 00 – Enable (NAND, SPI)
BTSEL[1:0] = 01 – Enable (OneNAND)
BTSEL[1:0] = 10 – Enable (MMC/SD)
BTSEL[1:0] = 11 – Enable (UART)
28
TIMER1
AlwaysOn
ON
SyncRst
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Table 3-22. Module Configuration (continued)
Default States
29
TIMER2
AlwaysOn
ON
Enable
30
System Module
AlwaysOn
ON
Enable
31
ARM
AlwaysOn
ON
Enable
32
BUS
AlwaysOn
ON
Enable
33
BUS
AlwaysOn
ON
Enable
34
BUS
AlwaysOn
ON
Enable
35
BUS
AlwaysOn
ON
Enable
36
BUS
AlwaysOn
ON
Enable
37
BUS
AlwaysOn
ON
Enable
38
BUS
AlwaysOn
ON
Enable
39
Reserved
Reserved
Reserved
Reserved
40
VPSS DAC
Always On
ON
SyncRst
3.11.4 ARM Boot Mode Configuration
The input pins BTSEL[1:0] determine whether the ARM will boot from its ROM or from the Asynchronous
EMIF (AEMIF). When ROM boot is selected (BTSEL[1:0] = 00, 10, or 11), a jump to the start of internal
ROM (address 0x0000: 8000) is forced into the first fetched instruction word. The embedded ROM boot
loader code (RBL) then performs certain configuration steps, reads the BOOTCFG register to determine
the desired boot method, and branches to the appropriate boot routine (i.e., a NAND/SPI, MMC/SD, or
UART loader routine).
If AEMIF boot is selected (BTSEL[1:0] = 01), a jump to the start of AEMIF (address 0x0200: 0000) is
forced into the first fetched instruction word. The ARM then continues executing from external
asynchronous memory using the default AEMIF timings until modified by software.
NOTE
For AEMIF boot, the OneNAND must be connected to the first AEMIF chip select space
(EM_CE0). Also, the AEMIF does not support direct execution from NAND Flash.
Boot modes are further described in Section 3.12.
3.11.5 AEMIF Configuration
3.11.5.1 AEMIF Pin Configuration
The input pins AECFG[3:0] determine the AEMIF configuration immediately after reset. Use AECFG[3:0]
to properly configure the pins of the AEMIF. Refer to the section on pin multiplexing in Section 3.9.
Also, see the Asynchronous External Memory Interface (AEMIF) Peripheral Reference Guide (literature
number SPRUED1) for more information on the AEMIF.
3.11.5.2 AEMIF Timing Configuration
When AEMIF is enabled, the wait state registers are reset to the slowest possible configuration, which is
88 cycles per access (16 cycles of setup, 64 cycles of strobe, and 8 cycles of hold). Thus, with a 24 MHz
clock at MXI1, the AEMIF is configured to run at 6 MHz/88 which equals approximately 68 kHz by default.
See the Asynchronous External Memory Interface (AEMIF) Peripheral Reference Guide (literature number
SPRUED1) for more information on the AEMIF.
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3.12 Device Boot Modes
The DM355 ARM can boot from either Async EMIF (AEMIF/OneNand) or from ARM ROM, as determined
by the setting of the device configuration pins BTSEL[1:0]. The BTSEL[1:0] pins can define the ROM boot
mode further as well.
The boot selection pins (BTSEL[1:0]) determine the ARM boot process. After reset (POR, warm reset, or
max reset), ARM program execution begins in ARM ROM at 0x0000: 8000, except when BTSEL[1:0] = 01,
indicating AEMIF (AEMIF/OneNand) boot. See Section 3.11.1 for information on the boot selection pins.
3.12.1 Boot Modes Overview
DM355’s ARM ROM boot loader (RBL) executes when the BTSEL[1:0] pins indicate a condition other than
the normal ARM EMIF boot.
• If BTSEL[1:0] = 01 - Asynchronous EMIF (AEMIF) boot. This mode is handled by hardware control and
does not involve the ROM. In the case of OneNAND, the user is responsible for putting any necessary
boot code in the OneNAND's boot page. This code shall configure the AEMIF module for the
OneNAND device. After the AEMIF module is configured, booting will continue immediately after the
OneNAND’s boot page with the AEMIF module managing pages thereafter.
• The RBL supports 3 distinct boot modes:
– BTSEL[1:0] = 00 - ARM NAND/SPI Boot
– BTSEL[1:0] = 10 - ARM MMC/SD Boot
– BTSEL[1:0] = 11 - ARM UART Boot
• In NAND mode if SPI boot fails, then NAND mode is tried. If NAND boot fails, then MMC/SD mode is
tried.
• If MMC/SD boot fails, then MMC/SD boot is tried again.
• If UART boot fails, then UART boot is tried again.
• RBL uses GIO61 to indicate boot status (can use to blink LED):
– After reset, GIO61 is initially driven low (e.g LED off)
– If NAND boot fails, then GIO61 shall toggle at 4Hz while MMC/SD boot is tried.
– If MMC/SD boot fails, then GIO61 shall toggle at 4Hz while MMC/SD boot is retried.
– If UART boot fails, then GIO61 shall toggle at 2Hz while UART boot is retried.
– When boot is successful, just before program control is given to UBL, GIO61 is driven high (e.g.
LED on)
– DM355 Timer0 shall be used to accurately toggle GIO61 at 4Hz and 2Hz
• ARM ROM Boot - SPI boot in NAND Mode
– No support for a full firmware boot. Instead, copies a second stage User Boot Loader (UBL) from
SPI to ARM Internal RAM (AIM) and transfers control to the user software.
– Support for 16 and 24 bit SPI EEPROMs
– Support for up to 30KB UBL (32KB - ~2KB for RBL stack)
– RBL will copy UBL to ARM Internal RAM (AIM) via SPI interface from a SPI peripheral like SPI
EEPROM. RBL will then transfer control to the UBL.
• ARM ROM Boot - NAND Mode (See Section 3.12.2 for a full explanation of the differences between
Standard Mode and Compatibility Mode.):
– No support for a full firmware boot. Instead, copies a second stage User Boot Loader (UBL) from
NAND flash to ARM internal RAM (AIM) and transfers control to the user-defined UBL.
– Support for NAND with page sizes up to 8192 bytes in Standard Mode and 2048 bytes in
Compatibility Mode
Note: At the time of documentation for this device, 8192-byte devices were not available for testing.
The code does contain support for these devices; however, it has not yet been tested.
– Support for magic number error detection and retry (up to 24 times) when loading UBL
– Support for up to 30KB UBL (32KB IRAM - ~2KB for RBL stack)
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•
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– Optional, user-selectable, support for use of DMA and I-cache during RBL execution (i.e.,while
loading UBL)
– Supports booting from 8-bit NAND devices (16-bit NAND devices are not supported)
– Uses/Requires 4-bit HW ECC (NAND devices with ECC requirements ≤ 4 bits per 512 bytes are
supported)
– Supports NAND flash that requires chip select to stay low during the tR read time
Notes:
– See Section 3.12.2 for a full explanation of the differences between Standard Mode and
Compatibility Mode.
– The GIO000 pin must be held high during NAND boot for the boot process to fuction properly.
ARM ROM Boot - MMC/SD Mode
– No support for a full firmware boot. Instead, copies a second stage User Boot Loader (UBL) from
MMC/SD to ARM Internal RAM (AIM) and transfers control to the user software.
– Support for MMC/SD Native protocol (MMC/SD SPI protocol is not supported)
– Support for descriptor error detection and retry (up to 24 times) when loading UBL
– Support for up to 30KB UBL (32KB - ~2KB for RBL stack)
ARM ROM Boot - UART mode
– No support for a full firmware boot. Instead, loads a second stage User Boot Loader (UBL) via
UART to ARM internal RAM (AIM) and transfers control to the user software.
– Support for up to 30KB UBL (32KB - ~2KB for RBL stack)
The general boot sequence is shown in Figure 3-6. For more information, refer to TMS320DM35x Digital
Media System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature number SPRUFB3).
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Reset
Boot
mode
?
Internal ROM
Boot
mode
?
Boot from
SPI flash
Yes
Boot from
UART
Boot OK ?
No
Boot OK ?
Boot from
NAND flash
No
Yes
Boot OK ?
Yes
No
Boot from
MMC/SD
Boot OK ?
No
Yes
Invoke
OneNAND
Invoke loaded
Program
Figure 3-6. Boot Mode Functional Block Diagram
3.12.2 RBL NAND Boot Process
The RBL NAND boot process is described as follows:
• Upon NAND boot, if a SPI EEPROM is present, RBL reads first 32 bytes and look for magic pattern at
offset 0x8. This magic number indicates if this is a SPI boot or beginning of NAND parameters.
• If SPI boot, then NAND boot is bypassed.
• Otherwise NAND boot is continued. If NAND parameters are found in the SPI EEPROM (as indicated
by magic number), these parameters are used.
• Else the following steps are used to determine NAND parameters:
– If the device is ONFI, read the parameters page. Else command is sent to the NAND device
requesting four bytes (called the NAND READ_ID) which contain the manufacturer, device and 4th
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•
•
•
•
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ID.
– The RBL contains an internal table with a list of known NAND devices. Table 3-23 shows the
devices contained in the tables.
– If the device ID is not found in the table, then the RBL use the fourth byte of the NAND to decode
this to obtain the necessary parameters.
Once a device ID is identified, the first 24 blocks of the NAND are read sequentially starting with page
0 with an offset of 512 bytes. The purpose of the read is to locate a magic number which will identify
the revision of the silicon. Table 3-24 contains magic numbers and their functions.
If a Compatibility mode magic number is read, then the device enters compatibility mode. In
compatibility mode, NAND layout is identical to that used in previous revisions of the silicon as shown
in Table 3-25. Only 512-byte small blocks and 2048-byte big blocks are supported.
If a Standard mode magic number is read, the NAND layout is as shown in Table 3-26: 512-bytes
small block and 2048- and 4096- big block devices are supported. 8192-block devices are also
supported. Note: At the time of production of this document revision, only 4096-block devices were
available for testing.
Once a magic number is identified, the User Boot Loader (UBL) is loaded from the NAND, stored to
internal RAM, and executed.
Table 3-23. NAND Devices in NAND Device ID Table
DEVICE ID
PAGES PER BLOCK
BYTES PER PAGE
BLOCK SHIFT VALUE
FOR ADDRESS
NUMBER OF ADDRESS
CYCLES
0xE3
16
512+16
12
3
0xE5
16
512+16
12
3
0xE6
16
512+16
12
3
0x39
(1)
16
512+16
13
3
0x6B
16
512+16
13
3
0x73
32
512+16
13
3
0x33
32
512+16
13
3
0x75
32
512+16
13
3
0x35
32
512+16
13
3
0x43
32
512+16
13
4
0x45
32
512+16
13
4
0x53
32
512+16
13
4
0x55
32
512+16
13
4
0x76
32
512+16
13
4
0x36
32
512+16
13
4
0x79
32
512+16
13
4
0x71
32
512+16
13
4
0x46
32
512+16
13
4
0x56
32
512+16
13
4
0x74
32
512+16
13
4
0xF1
64
2048+64
22
4
0xA1
64
2048+64
22
4
0xAA
64
2048+64
22
5
0xDA
64
2048+64
22
5
0xAC
64
2048+64
22
5
0xDC
64
2048+64
22
5
0xB1
64
2048+64
22
5
0xC1
64
2048+64
22
5
(1)
Present only on silicon revision 1.1.
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Table 3-24. UBL Signature and Special Modes for NAND Boot Mode
(1)
MODE
VALUE (1)
UBL_MAGIC_SAFE
0xA1AC ED00
Safe boot mode
UBL_MAGIC_DMA
0xA1AC ED11
DMA boot mode
DESCRIPTION
UBL_MAGIC_IC
0xA1AC ED22
I Cache boot mode
UBL_MAGIC_FAST
0xA1AC ED33
Fast EMIF boot mode
UBL_MAGIC_DMA_IC
0xA1AC ED44
DMA + I Cache boot mode
UBL_MAGIC_DMA_IC_FAST
0xA1AC ED55
DMA + I Cache + Fast EMIF boot mode
UBL_MAGIC_SPI_PARAMS
0xA1AC EDAA
NAND parameters from SPI EEPROM
The values listed only apply when operating in compatibility mode. These values follow the form 0xA1BCEDxx when operating in
standard mode.
Example: UBL_MAGIC_SAFE VALUE = 0xA1ACED00; Safe boot mode will configure the device to run in safe boot mode and in
compatibility mode. However, when using standard mode, the value should be 0xA1BCD00.
Table 3-25. NAND Layout (Compatibility Mode)
512 Byte Page Size
2048 Byte Page Size
512 bytes Data
512 bytes Data
16 bytes ECC Data
16 bytes ECC Data
512 bytes Data
16 bytes ECC Data
512 bytes Data
16 bytes ECC Data
512 bytes Data
16 bytes ECC Data
Table 3-26. NAND Layout (Standard Mode)
512 Byte Page Size
2048 Byte Page Size
512 bytes Data
2048 bytes Data
4096 Byte Page Size
4096 bytes Data
16 bytes ECC Data
64 bytes ECC Data
128 bytes ECC Data
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3.13 Power Management
The DM355 is designed for minimal power consumption. There are two components to power
consumption: active power and leakage power. Active power is the power consumed to perform work and
scales with clock frequency and the amount of computations being performed. Active power can be
reduced by controlling the clocks in such a way as to either operate at a clock setting just high enough to
complete the required operation in the required timeline or to run at a clock setting until the work is
complete and then drastically cut the clocks (e.g. to PLL Bypass mode) until additional work must be
performed. Leakage power is due to static current leakage and occurs regardless of the clock rate.
Leakage, or standby power, is unavoidable while power is applied and scales roughly with the operating
junction temperatures. Leakage power can only be avoided by removing power completely from a device
or subsystem. The DM355 includes several power management features which are briefly described in
Table 3-17. Refer to TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference
Guide (literature number SPRUFB3) for more information on power management.
Table 3-27. Power Management Features
Power Management Features
Description
Clock Management
Module clock disable
Module clocks can be disabled to reduce switching power
Module clock frequency scaling
Module clock frequency can be scaled to reduce switching power
PLL power-down
The PLLs can be powered-down when not in use to reduce
switching power
ARM Sleep Mode
ARM Wait-for-Interrupt sleep mode
Disable ARM clock to reduce active power
System Sleep Modes
Deep Sleep mode
Stop all device clocks and power down internal oscillators to reduce
active power to a minimum. Registers and memory are preserved.
I/O Management
USB Phy power-down
The USB Phy can be powered-down to reduce USB I/O power
DAC power-down
The DAC's can be powered-down to reduce DAC power
DDR self-refresh and power down
The DDR / mDDR device can be put into self-refresh and power
down states
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3.14 64-Bit Crossbar Architecture
The DM355 uses a 64-bit crossbar architecture to control access between device processors, subsystems
and peripherals. It includes an EDMA Controller consisting of a DMA Transfer Controller (TC) and a DMA
Channel Controller (CC). The TC provides two DMA channels for transfer between slave peripherals. The
CC provides a user and event interface to the EDMA system. It includes up to 64 event channels to which
all system synchronization events can be mapped and 8 auto submit “quick” channels (QDMA). In most
ways, these channels are identical. A channel refers to a specific ‘event’ that can cause a transfer to be
submitted to the TC as a Transfer Request.
3.14.1 Crossbar Connections
There are five transfer masters (TCs have separate read and write connections) connected to the
crossbar; ARM, the Video Processing Sub-system (VPSS), the master peripherals (USB), and two EDMA
transfer controllers. These can be connected to four separate slave ports; ARM, the DDR EMIF, and CFG
bus peripherals. Not all masters may connect to all slaves. Connection paths are indicated by √ at
intersection points shown in Table 3-28
Table 3-28. Crossbar Connection Matrix
Slave Module
DMA Master
ARM
ARM Internal
Memory
MPEG4/JPEG
Coprocessor
Memory
Config Bus Registers and
Memory
DDR EMIF Memory
√
√
√
√
√
VPSS
DMA Master Peripherals (USB)
√
EDMA3TC0
√
EDMA3TC1
√
√
√
√
√
√
√
√
√
3.14.2 EDMA Controller
The EDMA controller handles all data transfers between memories and the device slave peripherals on
the DM355 device. These are summarized as follows:
• Transfer to/from on-chip memories
– ARM program/data RAM
– MPEG4/JPEG Coprocessor memory
• Transfer to/from external storage
– DDR2 / mDDR SDRAM
– Asynchronous EMIF
– OneNAND flash
– NAND flash
– Smart Media, SD, MMC, xD media storage
• Transfer to/from peripherals
– ASP
– SPI
– I2C
– PWM
– RTO
– GPIO
– Timer/WDT
– UART
– MMC/SD
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The EDMA Controller consists of two major blocks: the Transfer Controller (TC) and the Channel
Controller (CC). The CC is a highly flexible Channel Controller that serves as the user interface and event
interface for the EDMA system. The CC supports 64-event channels and 8 QDMA channels. The CC
consists of a scalable Parameter RAM (PaRAM) that supports flexible ping-pong, circular buffering,
channel-chaining, auto-reloading, and memory protection.
The EDMA Channel Controller has the following features:
• Fully orthogonal transfer description
– Three transfer dimensions
– A-synchronized transfers: one dimension serviced per event
– AB- synchronized transfers: two dimensions serviced per event
– Independent indexes on source and destination
– Chaining feature allows 3-D transfer based on single event
• Flexible transfer definition
– Increment and constant addressing modes
– Linking mechanism allows automatic PaRAM set update
– Chaining allows multiple transfers to execute with one event
• Interrupt generation for:
– DMA completion
– Error conditions
• Debug visibility
– Queue watermarking/threshold
– Error and status recording to facilitate debug
• 64 DMA channels
– Event synchronization
– Manual synchronization (CPU(s) write to event set register)
– Chain synchronization (completion of one transfer chains to next)
• 8 QDMA channels
– QDMA channels are triggered automatically upon writing to a PaRAM set entry
– Support for programmable QDMA channel to PaRAM mapping
• 128 PaRAM sets
– Each PaRAM set can be used for a DMA channel, QDMA channel, or link set (remaining)
• Two transfer controllers/event queues. The system-level priority of these queues is user programmable
• 16 event entries per event queue
• External events (for example, ASP TX Evt and RX Evt)
The EDMA Transfer Controller has the following features:
•
•
•
•
•
•
•
Two transfer controllers
64-bit wide read and write ports per channel
Up to four in-flight transfer requests (TR)
Programmable priority level
Supports two dimensional transfers with independent indexes on source and destination (EDMA3CC
manages the 3rd dimension)
Support for increment and constant addressing modes
Interrupt and error support
Parameter RAM: Each EDMA is specified by an eight word (32-byte) parameter table contained in
Parameter RAM (PaRAM) within the CC. DM355 provides 128 PaRAM entries, one for each of the 64
DMA channels and for 64 QDMA / Linked DMA entries.
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DMA Channels: Can be triggered by: " External events (for example, ASP TX Evt and RX Evt), " Software
writing a '1' to the given bit location, or channel, of the Event Set register, or, " Chaining to other DMAs.
QDMA: The Quick DMA (QDMA) function is contained within the CC. DM355 implements 8 QDMA
channels. Each QDMA channel has a selectable PaRAM entry used to specify the transfer. A QDMA
transfer is submitted immediately upon writing of the "trigger" parameter (as opposed to the occurrence of
an event as with EDMA). The QDMA parameter RAM may be written by any Config bus master through
the Config Bus and by DMAs through the Config Bus bridge.
QDMA Channels: Triggered by a configuration bus write to a designated 'QDMA trigger word'. QDMAs
allow a minimum number of linear writes (optimized for GEM IDMA feature) to be issued to the CC to
force a series of transfers to take place.
3.14.2.1
EDMA Channel Synchronization Events
The EDMA supports up to 64 EDMA channels which service peripheral devices and external memory.
Table 3-29 lists the source of EDMA synchronization events associated with each of the programmable
EDMA channels. For the DM355 device, the association of an event to a channel is fixed; each of the
EDMA channels has one specific event associated with it. These specific events are captured in the
EDMA event registers (ER, ERH) even if the events are disabled by the EDMA event enable registers
(EER, EERH). For more detailed information on the EDMA module and how EDMA events are enabled,
captured, processed, linked, chained, and cleared, etc., see the TMS320DM35x Digital Media
System-on-Chip (DMSoC) Enhanced Direct Memory Access (EDMA) Controller Reference Guide
(literature number SPRUEE4).
Table 3-29. DM355 EDMA Channel Synchronization Events (1)
(1)
(2)
(2)
EDMA
CHANNEL
EVENT NAME
EVENT DESCRIPTION
0
TIMER3: TINT6
Timer 3 Interrupt (TINT6) Event
1
TIMER3 TINT7
Timer 3 Interrupt (TINT7) Event
2
ASP0: XEVT
ASP0 Transmit Event
3
ASP0: REVT
ASP0 Receive Event
4
VPSS: EVT1
VPSS Event 1
5
VPSS: EVT2
VPSS Event 2
6
VPSS: EVT3
VPSS Event 3
7
VPSS: EVT4
VPSS Event 4
8
ASP1: XEVT or TIMER2:
TINT4
ASP1 Transmit Event or Timer 2 interrupt (TINT4) Event
9
ASP1: REVT or TIMER2:
TINT5
ASP1 Receive Event or Timer 2 interrupt (TINT5) Event
10
SPI2: SPI2XEVT
SPI2 Transmit Event
11
SPI2: SPI2REVT
SPI2 Receive Event
12
Reserved
13
Reserved
14
SPI1: SPI1XEVT
SPI1 Transmit Event
15
SPI1: SPI1REVT
SPI1 Receive Event
16
SPI0: SPI0XEVT
SP0I Transmit Event
17
SPI0: SPI0REVT
SPI0 Receive Event
18
UART0: URXEVT0
UART 0 Receive Event
In addition to the events shown in this table, each of the 64 channels can also be synchronized with the transfer completion or
intermediate transfer completion events. For more detailed information on EDMA event-transfer chaining, see the TMS320DM35x Digital
Media System-on-Chip (DMSoC) Enhanced Direct Memory Access (EDMA) Controller Reference Guide (literature number SPRUEE4).
The total number of EDMA events in DM355 exceeds 64, which is the maximum value of the EDMA module. Therefore, several events
are multiplexed and you must use the register EDMA_EVTMUX in the System Control Module to select the event source for multiplexed
events. Refer to TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM Subsystem Reference Guide (literature number
SPRUFB3) for more information on the System Control Module register EDMA_EVTMUX.
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Table 3-29. DM355 EDMA Channel Synchronization Events
EDMA
CHANNEL
(1) (2)
EVENT NAME
EVENT DESCRIPTION
19
UART0: UTXEVT0
UART 0 Transmit Event
20
UART1: URXEVT1
UART 1 Receive Event
21
UART1: UTXEVT1
UART 1 Transmit Event
22
UART2: URXEVT2
UART 2 Receive Event
23
UART2: UTXEVT2
UART 2 Transmit Event
(continued)
24
Reserved
25
GPIO: GPINT9
GPIO 9 Interrupt Event
26
MMC0RXEVT
MMC/SD0 Receive Event
27
MMC0TXEVT
MMC/SD0 Transmit Event
28
I2CREVT
I2C Receive Event
29
I2CXEVT
I2C Transmit Event
30
MMC1RXEVT
MMC/SD1 Receive Event
31
MMC1TXEVT
MMC/SD1 Transmit Event
32
GPINT0
GPIO 0 Interrupt Event
33
GPINT1
GPIO 1 Interrupt Event
34
GPINT2
GPIO 2 Interrupt Event
35
GPINT3
GPIO 3 Interrupt Event
36
GPINT4
GPIO 4 Interrupt Event
37
GPINT5
GPIO 5 Interrupt Event
38
GPINT6
GPIO 6 Interrupt Event
39
GPINT7
GPIO 7 Interrupt Event
40
GPBNKINT0
GPIO Bank 0 Interrupt Event
41
GPBNKINT1
GPIO Bank 1 Interrupt Event
42
GPBNKINT2
GPIO Bank 2 Interrupt Event
43
GPBNKINT3
GPIO Bank 3 Interrupt Event
44
GPBNKINT4
GPIO Bank 4 Interrupt Event
45
GPBNKINT5
GPIO Bank 5 Interrupt Event
46
GPBNKINT6
GPIO Bank 6 Interrupt Event
47
GPINT8
GPIO 8 Interrupt Event
48
TIMER0: TINT0
Timer 0 Interrupt Event
49
TIMER0: TINT1
Timer 1 Interrupt Event
50
TIMER1: TINT2
Timer 2 Interrupt Event
51
TIMER1: TINT3
Timer 3 Interrupt Event
52
PWM0
PWM 0 Event
53
PWM1
PWM 1 Event
54
PWM2
PWM 2 Event
55
PWM3
PWM 3 Event
56 - 63
Reserved
3.15 MPEG4/JPEG Overview
The DM355 supports the computational operations used for image processing, JPEG compression and
MPEG4 video and imaging standard.
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4 Device Operating Conditions
4.1 Absolute Maximum Ratings Over Operating Case Temperature Range
(Unless Otherwise Noted) (1) (2)
All 1.3 V supplies
Supply voltage ranges
Input voltage ranges
-0.5 V to 1.7 V
All digital 1.8 V supplies
-0.5 V to 2.5 V
All analog 1.8 V supplies
-0.5 V to 1.89 V
All 3.3 V supplies
-0.5 V to 4.4 V
All 1.8 V I/Os
-0.5 V to 2.3 V
All 3.3 V I/Os
-0.5 V to 3.8 V
VBUS
Clamp current for input or output
(3)
Operating case temperature ranges
Storage temperature ranges
(1)
(2)
(3)
0.0 V to 5.5 V
Iclamp
-20 mA to 20 mA
Commercial Tc
0°C to 85 °C
Extended Temperature [A216 and A135 devices] Tc
-40°C to 100 °C
Tstg
-65°C to 150 °C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values are with respect to VSS.
Clamp current flows from an input or output pad to a supply rail through a clamp circuit or an intrinsic diode. Positive current results from
an applied input or output voltage that is more than 0.5 V higher (more positive) than the supply voltage,
VDD/VDDA_PLL1/2/VDD_USB/VDD_DDR for dual-supply macros. Negative current results from an applied voltage that is more than 0.5 V less
(more negative) than the VSS voltage..
Device Operating Conditions
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Recommended Operating Conditions
NAME
Supply Voltage
Supply Ground
DESCRIPTION
MIN
NOM
MAX
UNIT
CVDD
Supply voltage, Core
1.235
1.3
1.365
V
VDDA_PLL1
Supply voltage, PLL1
1.235
1.3
1.365
V
VDDA_PLL2
Supply voltage, PLL2
1.235
1.3
1.365
V
VDDD13_USB
Supply voltage, USB Digital
1.235
1.3
1.365
V
VDDA13_USB
Supply voltage, USB Analog
1.235
1.3
1.365
V
VDDA33_USB
Supply voltage, USB Analog
3.135
3.3
3.465
V
VDDA33_USB_PLL
Supply voltage, USB Common PLL
3.135
3.3
3.465
V
VDD_DDR
Supply voltage, DDR2 / MDDR
1.71
1.8
1.89
V
VDDA33_DDRDLL
Supply voltage, DDR DLL Analog
3.135
3.3
3.465
V
VDD_VIN
Supply voltage, Digital video In
3.135
3.3
3.465
V
VDD_VOUT
Supply voltage, Digital Video Out
3.135
3.3
3.465
V
VDDA18_DAC
Supply voltage, DAC Analog
1.71
1.8
1.89
V
VDD
Supply voltage, I/Os
3.135
3.3
3.465
V
VSS
Supply ground, Core, USB Digital
0
0
0
V
VSSA_PLL1
Supply ground, PLL1
0
0
0
V
VSSA_PLL2
Supply ground, PLL2
0
0
0
V
VSS_USB
Supply ground, USB
0
0
0
V
VSSA_DLL
Supply ground, DLL
0
0
0
V
VSSA_DAC
Supply ground, DAC Analog
0
0
0
V
VSS_MX1
MXI1 osc ground (1)
0
0
0
V
(1)
0
0
0
V
VSS_MX2
MXI2 osc ground
Voltage Input High
VIH
High-level input voltage (2)
Voltage Input Low
VIL
Low-level input voltage (2)
VREF
DAC reference voltage
450
mV
RBIAS
DAC full-scale current adjust resistor
2550
Ω
RLOAD
Output resistor
499
Ω
CBG
Bypass capacitor
0.1
mF
ROUT
Output resistor (ROUT), between TVOUT and VFB pins
1070
RFB
Feedback resistor, between VFB and IOUT pins.
1000
RBIAS
DAC full-scale current adjust resistor
2550
CBG
Bypass capacitor
USB_VBUS
USB external charge pump input
4.85
5
5.25
V
R1
USB reference resistor (4)
9.9
10
10.1
kΩ
0
85
°C
-40
100
°C
0.25P
or 10 (5)
ns
DAC (3)
Video Buffer (3)
USB
2
Tc
Operating case temperature range
Transition Time
tt
Transition time, 10% - 90%, All Inputs
(unless otherwise specified in the
electrical data sections)
(1)
(2)
(3)
(4)
(5)
100
Extended
(A216 and
A135 devices)
V
Ω
Ω
0.1
Commercial
Temperature
V
0.8
mA
Oscillator ground must be kept separate from other grounds and connected directly to the crystal load capacitor ground (see
Section 5.5.1 ).
These I/O specifications apply to regular 3.3 V I/Os and do not apply to DDR2/mDDR, USB I/Os. DDR2/mDDR I/Os are 1.8 V I/Os and
adhere to JESD79-2A standard, USB I/Os adhere to USB2.0 spec.
See Section 5.9.2.4 . Also, resistors should be E-96 spec line (3 digits with 1% accuracy).
Connect USB_R1 to VSS_USB_REF via 10K ohm, 1% resistor placed as close to the device as possible.
Whichever is smaller. P = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve
noise immunity on input signals.
Device Operating Conditions
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4.3
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Electrical Characteristics Over Recommended Ranges of Supply Voltage and
Operating Case Temperature (Unless Otherwise Noted)
PARAMETER
Voltage
Output
Current
Input/Output
TYP
MAX
High-level output voltage
VDD=MIN, IOH=MAX
VOL
Low-level output voltage (2)
VDD=MIN, IOL=MAX
II
Input current for I/O without
internal pull-up/pull-down
VI = VSS to VDD
-1
1
II(pullup)
Input current for I/O with
internal pull-up (3) (4)
VI = VSS to VDD
40
190
II(pulldown)
Input current for I/O with
internal pull-down (3) (4)
VI = VSS to VDD
-190
-40
IOH
Current sink of high-level
output current
VOH = 2.4 V
-4000
IOL
Current sink of low-level
output current
VOL = 0.6V
4000
VO = VDD or VSS; internal pull
disabled
±20
I/O off-state output current
2.4
0.6
VO = VDD or VSS; internal pull
enabled
Input capacitance
4
CO
Output capacitance
4
Resolution
Resolution
INL
Integral non-linearity, best fit
RLOAD = 499 Ω, Video buffer
disabled
DNL
Differential non-linearity
RLOAD = 499 Ω, Video buffer
disabled
IFS = 1.4 mA, RLOAD = 499 Ω
V
mA
pF
10
Bits
1
LSB
0.5
LSB
0
0.700
VOH(VIDBUF)
Output high voltage (top of
75% NTSC or PAL
colorbar) (5)
1.55
VOL(VIDBUF)
Output low voltage (bottom of
sync tip)
0.470
Video Buffer
UNIT
±100
CI
Compliance Output compliance range
(3)
(4)
(5)
MIN
VOH
DAC
(1)
(2)
(1)
(2)
IOZ
Capacitance
TEST CONDITIONS
V
V
For test conditions shown as MIN, MAX, or NOM, use the appropriate value specified in the recommended operating conditions table.
These I/O specifications apply to regular 3.3 V I/Os and do not apply to DDR2/mDDR, USB I/Os. DDR2/mDDR I/Os are 1.8 V I/Os and
adhere to JESD79-2A standard, USB I/Os adhere to USB2.0 spec.
This specification applies only to pins with an internal pullup (PU) or pulldown (PD). See Section 2.4 or Section 2.20 for pin descriptions.
To pull up a signal to the opposite supply rail, a 1 kΩ resistor is recommended.
100% color bars are not supported. 100% color bars require 1.2 V peak-to-peak. The video buffer only provides 1.0 V peak-to-peak.
Device Operating Conditions
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5 DM355 Peripheral Information and Electrical Specifications
5.1
Parameter Information Device-Specific Information
Tester Pin Electronics
42 Ω
3.5 nH
Transmission Line
Z0 = 50 Ω
(see note)
4.0 pF
A.
1.85 pF
Data Sheet Timing Reference Point
Output
Under
Test
Device Pin
(see note)
The data sheet provides timing at the device pin. For output timing analysis, the tester pin electronics and its
transmission line effects must be taken into account. A transmission line with a delay of 2 ns or longer can be used to
produce the desired transmission line effect. The transmission line is intended as a load only. It is not necessary to
add or subtract the transmission line delay (2 ns or longer) from the data sheet timings.
Input requirements in this data sheet are tested with an input slew rate of < 4 Volts per nanosecond (4 V/ns) at the
device pin.
Figure 5-1. Test Load Circuit for AC Timing Measurements
The load capacitance value stated is only for characterization and measurement of AC timing signals. This
load capacitance value does not indicate the maximum load the device is capable of driving.
5.1.1
Signal Transition Levels
All input and output timing parameters are referenced to Vref for both "0" and "1" logic levels. For 3.3 V I/O,
Vref = 1.65 V. For 1.8 V I/O, Vref = 0.9 V.
Vref
Figure 5-2. Input and Output Voltage Reference Levels for AC Timing Measurements
All rise and fall transition timing parameters are referenced to VIL MAX and VIH MIN for input clocks,
VOLMAX and VOH MIN for output clocks.
Vref = VIH MIN (or VOH MIN)
Vref = VIL MAX (or VOL MAX)
Figure 5-3. Rise and Fall Transition Time Voltage Reference Levels
5.1.2
Timing Parameters and Board Routing Analysis
The timing parameter values specified in this data sheet do not include delays by board routings. As a
good board design practice, such delays must always be taken into account. Timing values may be
adjusted by increasing/decreasing such delays. TI recommends utilizing the available I/O buffer
information specification (IBIS) models to analyze the timing characteristics correctly. To properly use IBIS
models to attain accurate timing analysis for a given system, see the Using IBIS Models for Timing
Analysis application report (literature number SPRA839). If needed, external logic hardware such as
buffers may be used to compensate any timing differences.
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5.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Recommended Clock and Control Signal Transition Behavior
All clocks and control signals should transition between VIH and VIL (or between VIL and VIH) in a
monotonic manner.
5.3
Power Supplies
The power supplies of DM355 are summarized in Table 5-1.
Table 5-1. Power Supplies
Customer Tolerance Package
Board
Plane
Supply
1.3 V
3.3 V
±5%
±5%
1.3 V
3.3 V
Chip Plane
Name
Description
Comments
CVDD
Core VDD
VDDA_PLL1
PLL1 VDDA
VDDA_PLL2
PLL2 VDDA
VDDD13_USB
USB 1.3 V supply
VDDA13_USB
USB 1.3 V supply
VDD
IO VDD for LVCMOS
VDDSHV
VDD
IO VDD for MXI/O1
VDDSHV
VDD
IO VDD for MXI/O2
VDDSHV1
VDD
IO VDD for ISB DRVVBUS
VDDSHV2
VDDA33_DDRDLL
DDR DLL analog VDD
VDDA33_USB
Analog 3.3 V power USB PHY
VDDA33_USB_PLL
Common mode 3.3 V power for USB
PHY (PLL)
VDD
IO VDD for peripherals
VDD_VIN
IO VDD for VideoIN I/F
VDD_VOUT
IO VDD for VideoOUT I/F
3.3 V
±5%
3.3 V
1.8 V
±5%
1.8 V
VDD_DDR
1.8 V
±5%
1.8 V
VDDA18
Analog 1.8 V power
1.8 V
±5%
1.8 V
VDDA18_DAC
Place decoupling caps (0.1mF/10mf) close
to chip
0V
n/a
0V
VSS_MX1
Connect to external crystal capacitor
ground
0V
n/a
0V
VSS_MX2
Connect to external crystal capacitor
ground
0V
n/a
0V
VSS
Chip ground
USB ESD ground
ground
VSS
0V
n/a
0V
VSSA
ground
Keep separate from digital ground VSS
0V
n/a
0V
VSSA_PLL1
PLL1 VSSA
0V
n/a
0V
VSSA_PLL2
PLL2 VSSA
0V
n/a
0V
VSSA_DLL
DLL ground
0V
n/a
0V
VSS_USB
USB ground
VSSA13_USB
VSSA13_USB
VSSA33_USB
VSSA33_USB_PLL
0V
n/a
0V
n/a
VDDS*0.5
5V
0V
VSS_USB_REF
USB PHY reference ground
VSSREF
0V
VSSA_DAC
DAC ground
Keep separate from digital ground VSS
DRR ref voltage
VDDS divided by 2, through board resistors
VBUS
Connect to external charge pump
VDDS*0.5 VREFSSTL
5V
USB_VBUS
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Power-Supply Sequencing
In order to ensure device reliability, the DM355 requires the following power supply power-on and
power-off sequences. See table Table 5-1 for a description of DM355 power supplies.
Power-On:
1. Power on 1.3 V: CVDD, VDDA_PLL1/2, VDDD13_USB, VDDA13_USB
2. Power on 1.8 V: VDD_DDR, VDDA18_DAC
3. Power on 3.3 V: DVDD, VDDA33_DDRDLL, VDDA33_USB, VDDA33_USB_PLL, VDD_VIN, VDD_VOUT
You may power-on the 1.8 V and 3.3 V power supplies simultaneously.
Power-Off:
1. Power off 3.3 V: DVDD, VDDA33_DDRDLL, VDDA33_USB, VDDA33_USB_PLL, VDD_VIN, VDD_VOUT
2. Power off 1.8 V: VDD_DDR, VDDA18_DAC
3. Power off 1.3 V: CVDD, VDDA_PLL1/2, VDDD13_USB, VDDA13_USB
You may power-off the 1.8 V and 3.3 V power supplies simultaneously.
Power-off the 1.8v/3.3V supply before or within 10usec of power-off of the 1.3 V supply.
Note that when booting the DM355 from OneNAND, you must ensure that the OneNAND device is ready
with valid program instructions before the DM355 attempts to read program instructions from it. In
particular, before you release DM355 reset, you must allow time for OneNAND device power to stabilize
and for the OneNAND device to complete its internal copy routine. During the internal copy routine, the
OneNAND device copies boot code from its internal non-volatile memory to its internal boot memory
section. Board designers typically achieve this requirement by design of the system power and reset
supervisor circuit. Refer to your OneNAND device datasheet for OneNAND power ramp and stabilization
times and for OneNAND boot copy times.
5.3.1.1
Power-Supply Design Considerations
Core and I/O supply voltage regulators should be located close to the DM355 to minimize inductance and
resistance in the power delivery path. Additionally, when designing for high-performance applications
utilizing the DM355 device, the PC board should include separate power planes for core, I/O, and ground,
all bypassed with high-quality low-ESL/ESR capacitors.
5.3.1.2
Power-Supply Decoupling
In order to properly decouple the supply planes from system noise, place as many capacitors (caps) as
possible close to DM355. These caps need to be close to the DM355 power pins, no more than 1.25 cm
maximum distance to be effective. Physically smaller caps, such as 0402, are better because of their
lower parasitic inductance. Proper capacitance values are also important. Small bypass caps (near 560
pF) should be closest to the power pins. Medium bypass caps (220 nF or as large as can be obtained in a
small package) should be next closest. TI recommends no less than 8 small and 8 medium caps per
supply be placed immediately next to the BGA vias, using the "interior" BGA space and at least the
corners of the "exterior".
Larger caps for each supply can be placed further away for bulk decoupling. Large bulk caps (on the order
of 100 mF) should be furthest away, but still as close as possible. Large caps for each supply should be
placed outside of the BGA footprint.
Any cap selection needs to be evaluated from a yield/manufacturing point-of-view. As with the selection of
any component, verification of capacitor availability over the product’s production lifetime should be
considered. See also Section 5.5.1 and Section 5.5.2 for additional recommendations on power supplies
for the oscillator/PLL supplies.
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5.4
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Reset
5.4.1
Reset Electrical Data/Timing
Table 5-2. Timing Requirements for Reset
NO.
(1)
(2)
(1) (2)
(see Figure 5-4)
DM355
PARAMETER
MIN
MAX
UNIT
1
tw(RESET)
Active low width of the RESET pulse
12C
ns
2
tsu(BOOT)
Setup time, boot configuration pins valid before RESET rising edge
12C
ns
3
th(BOOT)
Hold time, boot configuration pins valid after RESET rising edge
12C
ns
BTSEL[1:0] and AECFG[4:0] are the boot configuration pins during device reset.
C = MXI/CLKIN cycle time in ns. For example, when MXI/CLKIN frequency is 24 MHz use C = 41.6 ns.
1
RESET
2
3
Boot Configuration Pins
(BTSEL[1:0], AECFG[3:0])
Figure 5-4. Reset Timing
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5.5
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Oscillators and Clocks
DM355 has two oscillator input/output pairs (MXI1/MXO1 and MXI2/MXO2) usable with external crystals
or ceramic resonators to provide clock inputs. The optimal frequencies for the crystals are 24 MHz
(MXI1/MXO1) and 27 MHz (MXI2/MXO2). Optionally, the oscillator inputs are configurable for use with
external clock oscillators. If external clock oscillators are used, to minimize the clock jitter, a single clean
power supply should power both the DM355 and the external oscillator circuit and the minimum CLKIN
rise and fall times must be observed. The electrical requirements and characteristics are described in this
section.
The timing parameters for CLKOUT[3:1] are also described in this section. The DM355 has three output
clock pins (CLKOUT[3:1]). See Section 3.5 and Section 3.6 for more information on CLKOUT[3:1].
5.5.1
MXI1 (24-MHz) Oscillator
The MXI1 (typically 24 MHz, can also be 36 MHz) oscillator provides the primary reference clock for the
DM355 device. The on-chip oscillator requires an external crystal connected across the MXI1 and MXO1
pins, along with two load capacitors, as shown in Figure 5-5. The external crystal load capacitors must be
connected only to the oscillator ground pin (VSS_MX1). Do not connect to board ground (VSS). Also, the PLL
power pin (VDDA_PLL1) should be connected to the power supply through a ferrite bead, L1 in the example
circuit shown in Figure 5-5.
MXI1/CLKIN
MXO1
VSS_MX1
VDDA_PLL1
VSSA_PLL1
0.1 F
C1
Crystal
24 MHz or
36 MHz
C2
1 F
L1
Figure 5-5. MXI1 (24-MHz) Oscillator
The load capacitors, C1 and C2, should be chosen such that the equation is satisfied (typical values are
C1 = C2 = 10 pF). CL in the equation is the load specified by the crystal manufacturer. All discrete
components used to implement the oscillator circuit should be placed as close as possible to the
associated oscillator pins (MXI1 and MXO1) and to the VSS_MX1 pin.
CL
106
C 1C2
(C1 C2)
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Table 5-3. Switching Characteristics Over Recommended Operating Conditions for 24-MHz System
Oscillator
PARAMETER
MIN
TYP
Start-up time (from power up until oscillating at stable frequency)
4
Oscillation frequency
24 or 36
ESR
Frequency stability
5.5.2
MAX
UNIT
ms
MHz
60
Ω
+/-50
ppm
MXI2 (27-MHz) Oscillator (optional oscillator)
The MXI2 (27 MHz) oscillator provides an optional reference clock for the DM355's VPSS module. The
on-chip oscillator requires an external 27-MHz crystal connected across the MXI2 and MXO2 pins, along
with two load capacitors, as shown in Figure 5-6. The external crystal load capacitors must be connected
only to the 27-MHz oscillator ground pin (VSS_MX2). Do not connect to board ground (VSS). Also, the PLL
power pin (VDDA_PLL2) should be connected to the power supply through a ferrite bead, L1 in the example
circuit shown in Figure 5-6.
MXO2
MXI2
VSS_MX2
VDDA_PLL2
Crystal
27 MHz
C1
VSSA_PLL2
0.1 F
C2
1 F
L1
Figure 5-6. MXI2 (27-MHz) System Oscillator
The load capacitors, C1 and C2, should be chosen such that the equation is satisfied (typical values are
C1 = C2 = 10 pF). CL in the equation is the load specified by the crystal manufacturer. All discrete
components used to implement the oscillator circuit should be placed as close as possible to the
associated oscillator pins (MXI and MXO) and to the VSS_MX2 pin.
CL
C 1C2
(C1 C2)
Table 5-4. Switching Characteristics Over Recommended Operating Conditions for 27-MHz System
Oscillator
PARAMETER
MIN
TYP
Start-up time (from power up until oscillating at stable frequency)
Oscillation frequency
ESR
Frequency stability
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MAX
4
27
UNIT
ms
MHz
60
Ω
+/-50
ppm
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5.5.3
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Clock PLL Electrical Data/Timing (Input and Output Clocks)
Table 5-5. Timing Requirements for MXI1/CLKIN1 (1)
NO.
(2)
(see Figure 5-7)
DM355
PARAMETER
MIN
UNIT
MAX
(3)
tc(MXI1)
Cycle time, MXI1/CLKIN1
2
tw(MXI1H)
Pulse duration, MXI1/CLKIN1 high
0.45C
0.55C
ns
3
tw(MXI1L)
Pulse duration, MXI1/CLKIN1 low
0.45C
0.55C
ns
0.25C or
10 (4)
ns
0.02C
ns
tt(MXI1)
Transition time, MXI1/CLKIN1
5
tJ(MXI1)
Period jitter, MXI1/CLKIN1
(1)
(2)
(3)
(4)
41.6
(3)
1
4
27.7
TYP
ns
The reference points for the rise and fall transitions are measured at VIL MAX and VIH MIN.
C = MXI1/CLKIN1 cycle time in ns. For example, when MXI1/CLKIN1 frequency is 24 MHz use C = 41.6 ns.
tc(MXI1) = 41.6 ns and tc(MXI1) = 27.7 ns are the only supported cycle times for MXI1/CLKIN1.
Whichever is smaller. C = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve
noise immunity on input signals.
1
5
4
2
MXI/CLKIN
3
4
Figure 5-7. MXI1/CLKIN1 Timing
Table 5-6. Timing Requirements for MXI2/CLKIN2 (1)
NO.
(2)
(see Figure 5-7)
DM355
PARAMETER
MIN
UNIT
MAX
(3)
tc(MXI2)
Cycle time, MXI2/CLKIN2
2
tw(MXI2H)
Pulse duration, MXI2/CLKIN2 high
0.45C
0.55C
ns
3
tw(MXI2L)
Pulse duration, MXI2/CLKIN2 low
0.45C
0.55C
ns
0.25C or
10 (4)
ns
0.02C
ns
tt(MXI2)
Transition time, MXI2/CLKIN2
5
tJ(MXI2)
Period jitter, MXI2/CLKIN2
(1)
(2)
(3)
(4)
37.037
(3)
1
4
37.037
TYP
ns
The reference points for the rise and fall transitions are measured at VIL MAX and VIH MIN.
C = MXI2/CLKIN2 cycle time in ns. For example, when MXI2/CLKIN2 frequency is 27 MHz use C = 37.037 ns.
tc(MXI2) = 37.037 ns is the only supported cycle time for MXI2/CLKIN2.
Whichever is smaller. C = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve
noise immunity on input signals.
1
5
4
2
MXI/CLKIN
3
4
Figure 5-8. MXI2/CLKIN2 Timing
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Table 5-7. Switching Characteristics Over Recommended Operating Conditions for CLKOUT1 (1)
Figure 5-9)
NO.
DM355
PARAMETER
MIN
TYP
(2)
(see
UNIT
MAX
1
tC(CLKOUT1)
Cycle time, CLKOUT1
tc(MXI1)
2
tw(CLKOUT1H)
Pulse duration, CLKOUT1 high
0.45P
0.55P
ns
3
tw(CLKOUT1L)
Pulse duration, CLKOUT1 low
0.45P
0.55P
ns
4
tt(CLKOUT1)
Transition time, CLKOUT1
0.05P
ns
5
td(MXI1H-CLKOUT1H)
Delay time, MXI1/CLKIN1 high to CLKOUT1 high
1
8
ns
6
td(MXI1L-CLKOUT1L)
Delay time, MXI1/CLKIN1I low to CLKOUT1 low
1
8
ns
(1)
(2)
ns
The reference points for the rise and fall transitions are measured at VOL MAX and VOHMIN.
P = 1/CLKOUT1 clock frequency in nanoseconds (ns). For example, when CLKOUT1 frequency is 24 MHz use P = 41.6 ns.
5
6
MXI/CLKIN
2
4
1
CLKOUT1
3
4
Figure 5-9. CLKOUT1 Timing
Table 5-8. Switching Characteristics Over Recommended Operating Conditions for CLKOUT2 (1)
Figure 5-10)
NO.
(1)
(2)
(2)
DM355
PARAMETER
MIN
TYP
(see
UNIT
MAX
1
tC(CLKOUT2)
Cycle time, CLKOUT2
2
tw(CLKOUT2H)
Pulse duration, CLKOUT2 high
tc(MXI1) /3
0.45P
0.55P
ns
3
tw(CLKOUT2L)
Pulse duration, CLKOUT2 low
0.45P
0.55P
ns
4
tt(CLKOUT2)
Transition time, CLKOUT2
0.05P
ns
5
td(MXI1H-CLKOUT2H)
Delay time, MXI1/CLKIN1 high to CLKOUT2 high
1
8
ns
6
td(MXI1L-CLKOUT2L)
Delay time, MXI1/CLKIN1 low to CLKOUT2 low
1
8
ns
The reference points for the rise and fall transitions are measured at VOL MAX and VOHMIN.
P = 1/CLKOUT2 clock frequency in nanoseconds (ns). For example, when CLKOUT2 frequency is 8 MHz use P = 125 ns.
MXI/CLKIN
5
6
2
4
1
CLKOUT2
3
4
Figure 5-10. CLKOUT2 Timing
Table 5-9. Switching Characteristics Over Recommended Operating Conditions for CLKOUT3 (1)
(1)
(2)
(2)
(see
The reference points for the rise and fall transitions are measured at VOL MAX and VOHMIN.
P = 1/CLKOUT3 clock frequency in nanoseconds (ns). For example, when CLKOUT3 frequency is 3 MHz use P = 333.3 ns.
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Table 5-9. Switching Characteristics Over Recommended Operating Conditions for CLKOUT3
Figure 5-11 ) (continued)
(1) (2)
(see
Figure 5-11)
NO.
DM355
PARAMETER
MIN
TYP
MAX
UNIT
1
tC(CLKOUT3)
Cycle time, CLKOUT3
2
tw(CLKOUT3H)
Pulse duration, CLKOUT3 high
tc(MXI1) /8
0.45P
0.55P
ns
3
tw(CLKOUT3L)
Pulse duration, CLKOUT3 low
0.45P
0.55P
ns
4
tt(CLKOUT3)
Transition time, CLKOUT3
0.05P
ns
5
td(MXI2H-CLKOUT3H)
Delay time, CLKIN/MXI high to CLKOUT3 high
1
8
ns
6
td(MXI2L-CLKOUT3L)
Delay time, CLKIN/MXI low to CLKOUT3 low
1
8
ns
MXI/CLKIN
1
5
6
4
CLKOUT3
2
3
4
Figure 5-11. CLKOUT3 Timing
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5.6
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
General-Purpose Input/Output (GPIO)
The GPIO peripheral provides general-purpose pins that can be configured as either inputs or outputs.
When configured as an output, a write to an internal register can control the state driven on the output pin.
When configured as an input, the state of the input is detectable by reading the state of an internal
register. In addition, the GPIO peripheral can produce CPU interrupts and EDMA events in different
interrupt/event generation modes. The GPIO peripheral provides generic connections to external devices.
The GPIO pins are grouped into banks of 16 pins per bank (i.e., bank 0 consists of GPIO [0:15]). There
are a total of 7 GPIO banks in the DM355, because the DM355 has 104 GPIOs.
The DM355 GPIO peripheral supports the following:
• Up to 104 3.3v GPIO pins, GPIO[103:0]
• Interrupts:
– Up to 10 unique GPIO[9:0] interrupts from Bank 0
– Up to 7 GPIO (bank aggregated) interrupt signals, one from each of the 7 banks of GPIOs
– Interrupts can be triggered by rising and/or falling edge, specified for each interrupt capable GPIO
signal
• DMA events:
– Up to 10 unique GPIO DMA events from Bank 0
– Up to 7 GPIO (bank aggregated) DMA event signals, one from each of the 7 banks of GPIOs
• Set/clear functionality: Firmware writes 1 to corresponding bit position(s) to set or to clear GPIO
signal(s). This allows multiple firmware processes to toggle GPIO output signals without critical section
protection (disable interrupts, program GPIO, re-enable interrupts, to prevent context switching to
anther process during GPIO programming).
• Separate Input/Output registers
• Output register in addition to set/clear so that, if preferred by firmware, some GPIO output signals can
be toggled by direct write to the output register(s).
• Output register, when read, reflects output drive status. This, in addition to the input register reflecting
pin status and open-drain I/O cell, allows wired logic be implemented.
For more detailed information on GPIOs, see the TMS320DM35x Digital Media System-on-Chip (DMSoC)
General-Purpose Input/Output (GPIO) Reference Guide (literature number SPRUEE6).
5.6.1
GPIO Peripheral Input/Output Electrical Data/Timing
Table 5-10. Timing Requirements for GPIO Inputs (see Figure 5-12)
NO.
PARAMETER
DM355
MIN
MAX
UNIT
1
tw(GPIH)
Pulse duration, GPIx high
52
ns
2
tw(GPIL)
Pulse duration, GPIx low
52
ns
Table 5-11. Switching Characteristics Over Recommended Operating Conditions for GPIO Outputs
(see Figure 5-12)
NO.
(1)
PARAMETER
DM355
MIN
MAX
UNIT
3
tw(GPOH)
Pulse duration, GPOx high
26 (1)
ns
4
tw(GPOL)
Pulse duration, GPOx low
26 (1)
ns
This parameter value should not be used as a maximum performance specification. Actual performance of back-to-back accesses of the
GPIO is dependent upon internal bus activity.
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2
1
GPIx
4
3
GPOx
Figure 5-12. GPIO Port Timing
5.6.2
GPIO Peripheral External Interrupts Electrical Data/Timing
Table 5-12. Timing Requirements for External Interrupts/EDMA Events (1) (see Figure 5-13)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
1
tw(ILOW)
Width of the external interrupt pulse low
52
ns
2
tw(IHIGH)
Width of the external interrupt pulse high
52
ns
(1)
The pulse width given is sufficient to generate an interrupt or an EDMA event. However, if a user wants to have DM355 to recognize the
GPIO changes through software polling of the GPIO register, the GPIO duration must be extended to allow DM355 enough time to
access the GPIO register through the internal bus.
2
1
EXT_INTx
Figure 5-13. GPIO External Interrupt Timing
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5.7
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
External Memory Interface (EMIF)
DM355 supports several memory and external device interfaces, including:
• Asynchronous EMIF (AEMIF) for interfacing to SRAM.
– OneNAND flash memories
– NAND flash memories
• DDR2/mDDR Memory Controller for interfacing to SDRAM.
5.7.1
Asynchronous EMIF (AEMIF)
The EMIF supports the following features:
• SRAM, etc. on up to 2 asynchronous chip selects addressable up to 64KB each
• Supports 8-bit or 16-bit data bus widths
• Programmable asynchronous cycle timings
• Supports extended wait mode
• Supports Select Strobe mode
5.7.1.1
NAND (NAND, SmartMedia, xD)
The NAND features of the EMIF are as follows:
• NAND flash on up to 2 asynchronous chip selects
• 8 and 16-bit data bus widths
• Programmable cycle timings
• Performs 1-bit and 4-bit ECC calculation
• NAND Mode also supports SmartMedia/SSFDC (Solid State Floppy Disk Controller) and xD memory
cards
5.7.1.2
OneNAND
The OneNAND features supported are as follows.
• NAND flash on up to 2 asynchronous chip selects
• Only 16-bit data bus widths
• Supports asynchronous writes and reads
• Supports synchronous reads with continuous linear burst mode (Does not support synchronous reads
with wrap burst modes)
• Programmable cycle timings for each chip select in asynchronous mode
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AEMIF Electrical Data/Timing
Table 5-13. Timing Requirements for Asynchronous Memory Cycles for AEMIF Module (1) (see Figure 5-14
and Figure 5-15)
NO
.
DM355
PARAMETER
MIN
Nom
MAX
UNIT
READS and WRITES
2
tw(EM_WAIT)
Pulse duration, EM_WAIT assertion and
deassertion
12
tsu(EMDV-EMOEH)
13
14
2E
ns
Setup time, EM_D[15:0] valid before EM_OE high
5
ns
th(EMOEH-EMDIV)
Hold time, EM_D[15:0] valid after EM_OE high
0
ns
tsu
Setup time EM_WAIT asserted before EM_OE
high (2)
READS
(EMOEL-EMWAIT)
4E
ns
READS (OneNAND Synchronous Burst Read)
30
tsu(EMDV-EMCLKH)
Setup time, EM_D[15:0] valid before EM_CLK
high
31
th(EMCLKH-EMDIV)
Hold time, EM_D[15:0] valid after EM_CLK high
4
ns
4
ns
WRITES
tsu
28
(EMWEL-EMWAIT)
(1)
Setup time, EM_WAIT asserted before EM_WE
high (2)
4E
ns
E = PLLC1 SYSCLK2 period in ns. SYSCLK2 is the EMIF peripheral clock. SYSCLK2 is one-fourth the PLLC output clock. For example,
when PLLC output clock = 432 MHz, E = 9.259 ns. See Section 3.5 for more information.
Setup before end of STROBE phase (if no extended wait states are inserted) by which EM_WAIT must be asserted to add extended
wait states. Figure 5-16 and Figure 5-17 describe EMIF transactions that include extended wait states inserted during the STROBE
phase. However, cycles inserted as part of this extended wait period should not be counted; the 4E requirement is to the start of where
the HOLD phase would begin if there were no extended wait cycles.
(2)
Table 5-14. Switching Characteristics Over Recommended Operating Conditions for Asynchronous
Memory Cycles for AEMIF Module (1) (2) (3) (see Figure 5-14 and Figure 5-15)
NO.
DM355
PARAMETER
MIN
Nom
MAX
UNI
T
READS and WRITES
1
td(TURNAROUND)
Turn around time
(TA)*E
ns
EMIF read cycle time (EW = 0)
(RS+RST+RH)*E
ns
EMIF read cycle time (EW = 1)
(RS+RST+RH+(EWC*
16))*E
ns
Output setup time, EM_CE[1:0] low to
EM_OE low (SS = 0)
(RS)*E
ns
Output setup time, EM_CE[1:0] low to
EM_OE low (SS = 1)
0
ns
Output hold time, EM_OE high to
EM_CE[1:0] high (SS = 0)
(RH)*E
ns
Output hold time, EM_OE high to
EM_CE[1:0] high (SS = 1)
0
ns
READS
3
4
5
(1)
(2)
(3)
114
tc(EMRCYCLE)
tsu(EMCEL-EMOEL)
th(EMOEH-EMCEH)
TA = Turn around, RS = Read setup, RST = Read strobe, RH = Read hold, WS = Write setup, WST = Write strobe, WH = Write hold,
MEWC = Maximum external wait cycles. These parameters are programmed via the Asynchronous Bank and Asynchronous Wait Cycle
Configuration Registers. These support the following range of values: TA[4-1], RS[16-1], RST[64-1], RH[8-1], WS[16-1], WST[64-1],
WH[8-1], and MEW[1-256]. See the TMS320DM355 DMSoC Asynchronous External Memory Interface (EMIF) User's Guide (literature
number SPRUED1) for more information.
E = PLLC1 SYSCLK2 period in ns. SYSCLK2 is the EMIF peripheral clock. SYSCLK2 is one-fourth the PLLC output clock. For example,
when PLLC output clock = 432 MHz, E = 9.259 ns. See Section 3.5 for more information
EWC = external wait cycles determined by EM_WAIT input signal. EWC supports the following range of values EWC[256-1]. Note that
the maximum wait time before timeout is specified by bit field MEWC in the Asynchronous Wait Cycle Configuration Register. See the
TMS320DM355 DMSoC Asynchronous External Memory Interface (EMIF) User's Guide (literature number SPRUED1) for more
information.
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Table 5-14. Switching Characteristics Over Recommended Operating Conditions for Asynchronous
Memory Cycles for AEMIF Module (1) (2) (3) (see Figure 5-14 and Figure 5-15 ) (continued)
NO.
DM355
PARAMETER
MIN
Nom
MAX
UNI
T
6
tsu(EMBAV-EMOEL)
Output setup time, EM_BA[1:0] valid to
EM_OE low
(RS)*E
ns
7
th(EMOEH-EMBAIV)
Output hold time, EM_OE high to
EM_BA[1:0] invalid
(RH)*E
ns
8
tsu(EMBAV-EMOEL)
Output setup time, EM_A[13:0] valid to
EM_OE low
(RS)*E
ns
9
th(EMOEH-EMAIV)
Output hold time, EM_OE high to
EM_A[13:0] invalid
(RH)*E
ns
10
tw(EMOEL)
EM_OE active low width (EW = 0)
(RST)*E
ns
EM_OE active low width (EW = 1)
(RST+(EWC*16))*E
ns
11
td(EMWAITH-
4E
ns
EMOEH)
Delay time from EM_WAIT deasserted to
EM_OE high
READS (OneNAND Synchronous Burst Read)
(4)
32
fc(EM_CLK)
Frequency, EM_CLK
1
66
MH
z
33
tc(EM_CLK)
Cycle time, EM_CLK
15
1000
ns
34
tsu(EM_ADVV-
Output setup time, EM_ADV valid before
EM_CLK high
5
ns
Output hold time, EM_CLK high to EM_ADV
invalid
6
ns
Output setup time, EM_A[13:0]/EM_BA[1]
valid before EM_CLK high
5
ns
Output hold time, EM_CLK high to
EM_A[13:0]/EM_BA[1] invalid
6
ns
EM_AIV)
38
tw(EM_CLKH)
Pulse duration, EM_CLK high
tc(EM_CLK)/3
ns
39
tw(EM_CLKL)
Pulse duration, EM_CLK low
tc(EM_CLK)/3
ns
EM_CLKH)
35
th(EM_CLKHEM_ADVIV)
36
tsu(EM_AVEM_CLKH)
37
th(EM_CLKH-
WRITES
15
16
17
tc(EMWCYCLE)
tsu(EMCEL-EMWEL)
th(EMWEH-EMCEH)
EMIF write cycle time (EW = 0)
(WS+WST+WH)*E
ns
EMIF write cycle time (EW = 1)
(WS+WST+WH+(EW
C*16))*E
ns
Output setup time, EM_CE[1:0] low to
EM_WE low (SS = 0)
(WS)*E
ns
Output setup time, EM_CE[1:0] low to
EM_WE low (SS = 1)
0
ns
Output hold time, EM_WE high to
EM_CE[1:0] high (SS = 0)
(WH)*E
ns
Output hold time, EM_WE high to
EM_CE[1:0] high (SS = 1)
0
ns
20
tsu(EMBAV-EMWEL)
Output setup time, EM_BA[1:0] valid to
EM_WE low
(WS)*E
ns
21
th(EMWEH-EMBAIV)
Output hold time, EM_WE high to
EM_BA[1:0] invalid
(WH)*E
ns
22
tsu(EMAV-EMWEL)
Output setup time, EM_A[13:0] valid to
EM_WE low
(WS)*E
ns
23
th(EMWEH-EMAIV)
Output hold time, EM_WE high to
EM_A[13:0] invalid
(WH)*E
ns
24
tw(EMWEL)
EM_WE active low width (EW = 0)
(WST)*E
ns
EM_WE active low width (EW = 1)
(WST+(EWC*16))*E
ns
25
td(EMWAITH-
4E
ns
EMWEH)
(4)
Delay time from EM_WAIT deasserted to
EM_WE high
During OneNAND Mode the EM_CLK is driven by 1/2 PLLC1SYSCLK2 clk.
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Table 5-14. Switching Characteristics Over Recommended Operating Conditions for Asynchronous
Memory Cycles for AEMIF Module (1) (2) (3) (see Figure 5-14 and Figure 5-15 ) (continued)
NO.
DM355
PARAMETER
MIN
Nom
MAX
UNI
T
26
tsu(EMDV-EMWEL)
Output setup time, EM_D[15:0] valid to
EM_WE low
(WS)*E
ns
27
th(EMWEH-EMDIV)
Output hold time, EM_WE high to
EM_D[15:0] invalid
(WH)*E
ns
3
1
EM_CE[1:0]
EM_BA[1:0]
EM_A[13:0]
4
8
5
9
6
7
10
EM_OE
13
12
EM_D[15:0]
EM_WE
Figure 5-14. Asynchronous Memory Read Timing for EMIF
116
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15
1
EM_CE[1:0]
EM_BA[1:0]
EM_A[13:0]
16
17
18
19
20
21
24
22
23
EM_WE
27
26
EM_D[15:0]
EM_OE
Figure 5-15. Asynchronous Memory Write Timing for EMIF
EM_CE[1:0]
SETUP
STROBE
Extended Due to EM_WAIT
STROBE
HOLD
EM_BA[1:0]
EM_A[13:0]
EM_D[15:0]
14
EM_OE
2
EM_WAIT
Asserted
11
2
Deasserted
Figure 5-16. EM_WAIT Read Timing Requirements
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EM_CE[1:0]
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STROBE
Extended Due to EM_WAIT
STROBE
HOLD
EM_BA[1:0]
EM_A[13:0]
EM_D[15:0]
28
25
EM_WE
2
EM_WAIT
2
Asserted
Deasserted
Figure 5-17. EM_WAIT Write Timing Requirements
33
38
EM_CE[1:0]
39
EM_CLK
34
EM_ADV
35
31
36
EM_BA0,
EM_A[13:0],
EM_BA1
37
EM_D[15:0]
30
Da
Da+n+1
Da+1
Da+2
Da+3
Da+4
Da+5
Da+n
EM_OE
EM_WAIT
Figure 5-18. Synchronous OneNAND Flash Read Timing
118
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5.7.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
DDR2/mDDR Memory Controller
The DDR2 / mDDR Memory Controller is a dedicated interface to DDR2 / mDDR SDRAM. It supports
JESD79D-2A standard compliant DDR2 SDRAM devices and compliant Mobile DDR SDRAM devices.
DDR2 / mDDR SDRAM plays a key role in a DM355-based system. Such a system is expected to require
a significant amount of high-speed external memory for all of the following functions:
• Buffering of input image data from sensors or video sources
• Intermediate buffering for processing/resizing of image data in the VPFE
• Numerous OSD display buffers
• Intermediate buffering for large raw Bayer data image files while performing image processing
functions
• Buffering for intermediate data while performing video encode and decode functions
• Storage of executable code for the ARM
The DDR2 / mDDR Memory Controller supports the following features:
• JESD79D-2A standard compliant DDR2 SDRAM
• Mobile DDR SDRAM
• 256 MByte memory space
• Data bus width 16 bits
• CAS latencies:
– DDR2: 2, 3, 4, and 5
– mDDR: 2 and 3
• Internal banks:
– DDR2: 1, 2, 4, and 8
– mDDR: 1, 2, and 4
• Burst length: 8
•
Burst type: sequential
•
•
•
•
•
•
•
•
•
•
1 CS signal
Page sizes: 256, 512, 1024, and 2048
SDRAM autoinitialization
Self-refresh mode
Partial array self-refresh (for mDDR)
Power down mode
Prioritized refresh
Programmable refresh rate and backlog counter
Programmable timing parameters
Little endian
For details on the DDR2 Memory Controller, refer to TMS320DM35x Digital Media System-on-Chip
(DMSoC) DDR2/mDDR Memory Controller Reference Guide (literature number SPRUEH7).
5.7.2.1
DDR2/mDDR Memory Controller Electrical Data/Timing
The Implementing DDR2/mDDR PCB Layout on the TMS320DM35x DMSoC Application Report (literature
number SPRAAR3) specifies a complete DDR2 and mDDR interface solution for the DM355 as well as a
list of compatible DDR2/mDDR devices. TI has performed the simulation and system characterization to
ensure all DDR2 and mDDR interface timings in this solution are met.
TI only supports board designs that follow the guidelines outlined in the Implementing DDR2/mDDR PCB
Layout on the TMS320DM35x DMSoC Application Report (literature number SPRAAR3).
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MMC/SD
The DM355 includes two separate MMC/SD Controllers which are compliant with MMC V3.31, Secure
Digital Part 1 Physical Layer Specification V1.1 and Secure Digital Input Output (SDIO) V1.0
specifications.
The DM355 MMC/SD Controller has following features:
• MultiMediaCard (MMC).
• Secure Digital (SD) Memory Card.
• MMC/SD protocol support.
• SDIO protocol support.
• Programmable clock frequency.
• 256 bit Read/Write FIFO to lower system overhead.
• Slave EDMA transfer capability.
The DM355 MMC/SD Controller does not support SPI mode.
5.8.1
MMC/SD Electrical Data/Timing
Table 5-15. Timing Requirements for MMC/SD Module
(see Figure 5-20 and Figure 5-22)
DM355
NO.
PARAMETER
1
tsu(CMDV-CLKH)
Setup time, SD_CMD valid before SD_CLK high
2
th(CLKH-CMDV)
Hold time, SD_CMD valid after SD_CLK high
3
tsu(DATV-CLKH)
Setup time, SD_DATx valid before SD_CLK high
4
th(CLKH-DATV)
Hold time, SD_DATx valid after SD_CLK high
(1)
FAST MODE
STANDARD
MODE
MIN
MIN
MAX
UNIT
MAX
6
5
ns
2.5 (1)
5
ns
6
5
ns
2.5
5
ns
For this parameter, you may include margin in your board design so that the toh = 2.5 ns of the MMC/SD device is not degraded at the
DM355 input pin.
Table 5-16. Switching Characteristics Over Recommended Operating Conditions for MMC/SD Module
(see Figure 5-19 through Figure 5-22)
DM355
NO.
PARAMETER
FAST MODE
STANDARD
MODE
UNIT
MIN
MAX
MIN
7
f(CLK)
Operating frequency, SD_CLK
0
50
0
MAX
25
MHz
8
f(CLK_ID)
Identification mode frequency, SD_CLK
0
400
0
400
KHz
9
tW(CLKL)
Pulse width, SD_CLK low
7
10
10
tW(CLKH)
Pulse width, SD_CLK high
7
10
11
tr(CLK)
Rise time, SD_CLK
3
10
ns
12
tf(CLK)
Fall time, SD_CLK
3
10
ns
13
td(CLKL-CMD)
Delay time, SD_CLK low to SD_CMD transition
-7.5
4
-7.5
14
ns
14
td(CLKL-DAT)
Delay time, SD_CLK low to SD_DATx transition
-7.5
4
-7.5
14
ns
120
ns
ns
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10
9
7
SD_CLK
13
13
START
SD_CMD
13
XMIT
Valid
Valid
13
Valid
END
Figure 5-19. MMC/SD Host Command Timing
9
7
10
SD_CLK
1
2
SD_CMD
START
XMIT
Valid
Valid
Valid
END
Figure 5-20. MMC/SD Card Response Timing
10
9
7
SD_CLK
14
14
START
SD_DATx
14
D0
D1
14
Dx
END
Figure 5-21. MMC/SD Host Write Timing
9
10
7
SD_CLK
4
4
3
SD_DATx
Start
3
D0
D1
Dx
End
Figure 5-22. MMC/SD Host Read and Card CRC Status Timing
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Video Processing Sub-System (VPSS) Overview
The DM355 contains a Video Processing Sub-System (VPSS) that provides an input interface (Video
Processing Front End or VPFE) for external imaging peripherals such as image sensors, video decoders,
etc.; and an output interface (Video Processing Back End or VPBE) for display devices, such as analog
SDTV displays, digital LCD panels, HDTV video encoders, etc.
In addition to these peripherals, there is a set of common buffer memory and DMA control to ensure
efficient use of the DDR2 burst bandwidth. The shared buffer logic/memory is a unique block that is
tailored for seamlessly integrating the VPSS into an image/video processing system. It acts as the primary
source or sink to all the VPFE and VPBE modules that are either requesting or transferring data from/to
DDR2. In order to efficiently utilize the external DDR2 bandwidth, the shared buffer logic/memory
interfaces with the DMA system via a high bandwidth bus (64-bit wide). The shared buffer logic/memory
also interfaces with all the VPFE and VPBE modules via a 128-bit wide bus. The shared buffer
logic/memory (divided into the read & write buffers and arbitration logic) is capable of performing the
following functions. It is imperative that the VPSS utilize DDR2 bandwidth efficiently due to both its large
bandwidth requirements and the real-time requirements of the VPSS modules. Because it is possible to
configure the VPSS modules in such a way that DDR2 bandwidth is exceeded, a set of user accessible
registers is provided to monitor overflows or failures in data transfers.
5.9.1
Video Processing Front-End (VPFE)
The VPFE or Video Processing Front-End block is comprised of the CCD Controller (CCDC), Image Pipe
(IPIPE), and Hardware 3A Statistic Generator (H3A). These modules are described in the sections that
follow.
5.9.1.1
CCD Controller (CCDC)
The CCDC is responsible for accepting raw (unprocessed) image/video data from a sensor (CMOS or
CCD). In addition, the CCDC can accept YUV video data in numerous formats, typically from so-called
video decoder devices. In the case of raw inputs, the CCDC output requires additional image processing
to transform the raw input image to the final processed image. This processing can be done either
on-the-fly in the Preview Engine hardware ISP or in software on the ARM and MPEG4/JPEG coprocessor
subsystems. In parallel, raw data input to the CCDC can also used for computing various statistics (3A,
Histogram) to eventually control the image/video tuning parameters. The CCDC is programmed via control
and parameter registers. DM355 performance is enhanced by its dedicated hard-wired MPEG4/JPEG
coprocessor (MJCP). The MJCP performs all the computational operations required for JPEG and MPEG4
compression. These operations can be invoked using the xDM (xDIAS for Digital Media) APIs. For more
information, refer to the xDIAS-DM (xDIAS for Digital Media) User's Guide (literature number SPRUEC8).
The following features are supported by the CCDC module.
• Support for conventional Bayer pattern.
• Generates HD/VD timing signals and field ID to an external timing generator or can synchronize to the
external timing generator.
• Support for progressive and interlaced sensors (hardware support for up to 2 fields and firmware
support for higher number of fields, typically 3-, 4-, and 5-field sensors).
• Support for up to 75-MHZ sensor pixel clock if H3A is not used, otherwise the pixel clock must be less
than 67.5 MHZ
• Support for ITU-R BT.656 standard format, either 8-bit or 16-bit.
• Support for YCbCr 422 format, either 8- or 16-bit with discrete HSYNC and VSYNC signals.
• Support for up to 14-bit input.
• Support for color space conversion
• Generates optical black clamping signals.
• Support for shutter signal control.
• Support for digital clamping and black level compensation.
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5.9.1.2
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Fault pixel correction based on a lookup table that contains row and column position of the pixel to be
corrected.
Support for program lens shading correction.
Support for 10-bit to 8-bit A-law compression.
Support for a low-pass filter prior to writing to SDRAM. If this filter is enabled, 2 pixels each in the left
and right edges of each line are cropped from the output.
Support for generating output to range from 14-bits to 8-bits wide (8-bits wide allows for 50% saving in
storage area).
Support for down sampling via programmable culling patterns.
Ability to control output to the DDR2 via an external write enable signal.
Support for up to 32K pixels (image size) in both the horizontal and vertical direction.
IPIPE - Image Pipe
The hardware Image Pipe (IPIPE) is a programmable hardware image processing module that is
responsible for transforming raw (unprocessed) image/video data from a sensor (CMOS or CCD) into
YCbCr 422 data that is amenable for compression or display. The IPIPE can also be configured to operate
in a resize only mode, which allows YCbCr 422 to be resized without applying the processing of every
module in the IPIPE. Typically, the output of the IPIPE is used for both video compression and displaying
it on an external display device such as a NTSC/PAL analog encoder or a digital LCD. The IPIPE is
programmed via control and parameter registers. The following features are supported by the IPIPE.
• The input interface extracts valid raw data from the CCD raw data, and then various modules in IPIPE
process the raw CCD data.
• The 2D noise filter module reduces impulse noise in the raw data and adjusts the resolution of the
input image.
• The 2D pre-filter adjusts the resolution of the input image and remove line crawl noise.
• The white balance module applies two gain adjustments to the data: a digital gain (total gain) and a
white balance gain.
• The Color Filter Array (CFA) interpolation module implements CFA interpolation. The output from the
CFA interpolation module is always RGB formatted data.
• The RGB2RGB blending module applies a 3x3 matrix transform to the RGB data generated by the
CFA interpolation module.
• The gamma correction module independently applies gamma correction to each RGB component.
Gamma is implemented using a piece-wise linear interpolation approach with a 512 entry look up table
for each color.
• The RGB2YCbCr conversion module applies 3x3 matrix transformation to the RGB data to convert it to
YCbCr data. This module also implements offset.
• The 4:2:2 conversion module applies the chroma low pass filter and down samples Cb and Cr, so that
IPIPE output data is in YCbCr-4:2:2 format.
• The 2D edge enhancer module improves image clarity with luminance non-linear filter. This module
also has contrast and brightness adjustment functions.
• The chroma suppression module reduces faulty-color using luminance (Y) value or high-pass-filtering Y
value. The H-resizer and V-resizer modules resize horizontal and vertical image sizes, respectively.
• The output interface module transfers data from IPIPE to SDRAM, in the form of YCbCr-422 or RGB
(32bit/16bit).
• The histogram function can record histograms of up to 4 distinct areas into up to 256 bins.
• IPIPE has three different processing paths:
– Case 1: The CCD raw data directly leads to IPIPE and stores the YCbCr (or RGB) data to SDRAM.
– Case 2: IPIPE reads CCD raw data and stores the Bayer pattern data after white balance to
SDRAM.
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– Case 3: IPIPE reads YCbCr-422 data and apply edge enhance, chroma suppression and Resize to
output YCbCr (or RGB) data to SDRAM.
5.9.1.3
Hardware 3A (H3A)
The H3A module is designed to support the control loops for Auto Focus, Auto White Balance and Auto
Exposure by collecting metrics about the imaging/video data. The metrics are to adjust the various
parameters for processing the imaging/video data. There are 2 main blocks in the H3A module:
• Auto Focus (AF) engine
• Auto Exposure (AE) Auto White Balance (AWB) engine
The AF engine extracts and filters the red, green, and blue data from the input image/video data and
provides either the accumulation or peaks of the data in a specified region. The specified region is a
two-dimensional block of data and is referred to as a "paxel" for the case of AF.
The AE/AWB Engine accumulates the values and checks for saturated values in a sub sampling of the
video data. In the case of the AE/AWB, the two-dimensional block of data is referred to as a "window".
Thus, other than referring them by different names, a paxel and a window are essentially the same thing.
However, the number, dimensions, and starting position of the AF paxels and the AE/AWB windows are
separately programmable.
The following features are supported by the AF engine:
• Support for input from DDR2 / mDDR SDRAM (in addition to the CCDC port)
• Support for a Peak Mode in a Paxel (a Paxel is defined as a two dimensional block of pixels).
• Accumulate the maximum Focus Value of each line in a Paxel
• Support for an Accumulation/Sum Mode (instead of Peak mode).
• Accumulate Focus Value in a Paxel.
• Support for up to 36 Paxels in the horizontal direction and up to 128 Paxels in the vertical direction.
The number of horizontal paxels is limited by the memory size (and cost), while the vertical number of
paxels is not. Therefore, the number of paxels in horizontal direction is smaller than the number of
paxels in vertical direction.
• Programmable width and height for the Paxel. All paxels in the frame will be of same size.
• Programmable red, green, and blue position within a 2x2 matrix.
• Separate horizontal start for paxel and filtering.
• Programmable vertical line increments within a paxel.
• Parallel IIR filters configured in a dual-biquad configuration with individual coefficients (2 filters with 11
coefficients each). The filters are intended to compute the sharpness/peaks in the frame to focus on.
The following features are supported by the AE/AWB engine:
• Support for input from DDR2 / mDDR SDRAM (in addition to the CCDC port)
• Accumulate clipped pixels along with all non-saturated pixels
• Support for up to 36 horizontal windows.
• Support for up to 128 vertical windows.
• Programmable width and height for the windows. All windows in the frame will be of same size.
• Separate vertical start co-ordinate and height for a black row of paxels that is different than the
remaining color paxels.
• Programmable Horizontal Sampling Points in a window
• Programmable Vertical Sampling Points in a window
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5.9.1.4
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
VPFE Electrical Data/Timing
Table 5-17. Timing Requirements for VPFE PCLK Master/Slave Mode (1) (see Figure 5-23)
NO.
(1)
PARAMETER
MIN
H3A not used
13.33 or P
(2)
MAX
UNIT
100
ns
100
ns
1
tc(PCLK)
Cycle time, PCLK
2
tw(PCLKH)
Pulse duration, PCLK high
5.7
ns
3
tw(PCLKL)
Pulse duration, PCLK low
5.7
ns
4
tt(PCLK)
Transition time, PCLK
H3A used
2P + 1
3
ns
P = 1/SYSCLK4 in nanoseconds (ns). For example, if the SYSCLK4 frequency is 135 MHz, use P = 7.41 ns. See Section 3.5 , Device
Clocking, for more information on the supported clock configurations of the DM355.
Use whichever value is greater.
(2)
2
3
1
PCLK
4
4
Figure 5-23. VPFE PCLK Timing
Table 5-18. Timing Requirements for VPFE (CCD) Slave Mode (see Figure 5-24)
NO.
PARAMETER
DM355
MIN
MAX
UNIT
5
tsu(CCDV-PCLK)
Setup time, CCD valid before PCLK edge
3
ns
6
th(PCLK-CCDV)
Hold time, CCD valid after PCLK edge
2
ns
7
tsu(HDV-PCLK)
Setup time, HD valid before PCLK edge
3
ns
8
th(PCLK-HDV)
Hold time, HD valid after PCLK edge
2
ns
9
tsu(VDV-PCLK)
Setup time, VD valid before PCLK edge
3
ns
10
th(PCLK-VDV)
Hold time, VD valid after PCLK edge
2
ns
11
tsu(CAM_WEN_FIELDV-PCLK)
Setup time, CAM_WEN_FIELD valid before PCLK edge
3
ns
12
th(CAM_WEN_FIELDV-PCLK)
Hold time, C_WEN_FIELD valid after PCLK edge
2
ns
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PCLK
(Positive Edge Clocking)
PCLK
(Negative Edge Clocking)
8, 10
7, 9
HD/VD
11
12
CAM_WEN_FIELD
5
6
CI[7:0]/YI[7:0]/
CCD[13:0]
Figure 5-24. VPFE (CCD) Slave Mode Input Data Timing
Table 5-19. Timing Requirements for VPFE (CCD) Master Mode (1) (see Figure 5-25)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
15
tsu(CCDV-PCLK)
Setup time, CCD valid before PCLK edge
3
ns
16
th(PCLK-CCDV)
Hold time, CCD valid after PCLK edge
2
ns
23
tsu(CAM_WEN_FIELDV-PCLK)
Setup time, CAM_WEN_FIELD valid before PCLK edge
3
ns
24
th(PCLK-CAM_WEN_FIELDV)
Hold time, CAM_WEN_FIELD valid after PCLK edge
2
ns
(1)
The VPFE may be configured to operate in either positive or negative edge clocking mode. When in positive edge clocking mode the
rising edge of PCLK is referenced. When in negative edge clocking mode the falling edge of PCLK is referenced.
PCLK
(Positive Edge Clocking)
PCLK
(Positive Edge Clocking)
15
16
CI[7:0]/YI[7:0]/
CCD[13:0]
23
24
CAM_WEN_FIELD
Figure 5-25. VPFE (CCD) Master Mode Input Data Timing
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Table 5-20. Switching Characteristics Over Recommended Operating Conditions for VPFE (CCD) Master
Mode (see Figure 5-26)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
18
td(PCLKL-HDIV)
Delay time, PCLK edge to HD invalid
3
11
ns
20
td(PCLKL-VDIV)
Delay time, PCLK edge to VD invalid
3
11
ns
PCLK
(Negative Edge Clocking)
PCLK
(Positive Edge Clocking)
18
HD
20
VD
Figure 5-26. VPFE (CCD) Master Mode Control Output Data Timing
5.9.2
Video Processing Back-End (VPBE)
The Video Processing Back-End of VPBE module is comprised of the On Screen Display (OSD) module
and the Video Encoder / Digital LCD Controller (VENC/DLCD).
5.9.2.1
On-Screen Display (OSD)
The primary function of the OSD module is to gather and blend video data and display/bitmap data and
then pass it to the Video Encoder (VENC) in YCbCr format. The video and display data is read from
external DDR2/mDDR memory. The OSD is programmed via control and parameter registers. The
following are the primary features that are supported by the OSD.
• Support for two video windows and two OSD bitmapped windows that can be displayed simultaneously
(VIDWIN0/VIDWIN1 and OSDWIN0/OSDWIN1).
• Video windows supports YCbCr data in 422 format from external memory, with the ability to
interchange the order of the CbCr component in the 32-bit word
• OSD bitmap windows support ½/4/8 bit width index data of color palette
• In addition one OSD bitmap window at a time can be configured to one of the following:
– YUV422 (same as video data)
– RGB format data in 16-bit mode (R=5bit, G=6bit, B=5bit)
– 24-bit mode (each R/G/B=8bit) with pixel level blending with video windows
• Programmable color palette with the ability to select between a RAM/ROM table with support for 256
colors.
• Support for 2 ROM tables, one of which can be selected at a given time
• Separate enable/disable control for each window
• Programmable width, height, and base starting coordinates for each window
• External memory address and offset registers for each window
• Support for x2 and x4 zoom in both the horizontal and vertical direction
• Pixel-level blending/transparency/blinking attributes can be defined for OSDWIN0 when OSDWIN1 is
configured as an attribute window for OSDWIN0.
• Support for blinking intervals to the attribute window
• Ability to select either field/frame mode for the windows (interlaced/progressive)
• An eight step blending process between the bitmap and video windows
• Transparency support for the bitmap and video data (when a bitmap pixel is zero, there will be no
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blending for that corresponding video pixel)
Ability to resize from VGA to NTSC/PAL (640x480 to 720x576) for both the OSD and video windows
Horizontal rescaling x1.5 is supported
Support for a rectangular cursor window and a programmable background color selection.
The width, height, and color of the cursor is selectable
The display priority is: Rectangular-Cursor > OSDWIN1 > OSDWIN0 > VIDWIN1 > VIDWIN0 >
background color
Support for attenuation of the YCbCr values for the REC601 standard.
The following restrictions exist in the OSD module.
• If the vertical resize filter is enabled for either of the video windows, the maximum horizontal window
dimension cannot be greater than 720 currently. This is due to the limitation in the size of the line
memory.
• It is not possible to use both of the CLUT ROMs at the same time. However, a window can use RAM
while another uses ROM.
5.9.2.2
Video Encoder / Digital LCD Controller (VENC/DLCD)
The VENC/DLCD consists of three major blocks; a) the video encoder that generates analog video output,
b) the digital LCD controller that generates digital RGB/YCbCr data output and timing signals, and c) the
timing generator.
The video encoder for analog video supports the following features:
• Master Clock Input - 27 MHz (x2 Upsampling)
• Programmable Timing Generator
• SDTV Support
– Composite NTSC-M, PAL-B/D/G/H/I
– Non-Interlace option
– CGMS/WSS
– Line 21 Closed Caption Data Encoding
– Chroma Low Pass Filter 1.5MHz/3MHz
– Programmable SC-H phase
• 10-bit Over-Sampling D/A Converter (27MHz)
• Internal analog video buffer
• Optional 7.5% Pedestal
• 16-235/0-255 Input Amplitude Selectable
• Programmable Luma Delay
• Master/Slave Operation
• Internal Color Bar Generation (75%)
The digital LCD controller supports the following features:
• Programmable DCLK
• Programmable Timing Generator
• Various Output Format
– YCbCr 16bit
– YCbCr 8bit
– ITU-R BT. 656
– Parallel RGB 16-bit/18-bit
– Serial 8-bit RGB
• Low Pass Filter for Digital RGB Output
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5.9.2.3
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Master/Slave Operation
Internal Color Bar Generation (100%/75%)
YUV/RGB modes support HDTV output (720p/1080i) with 74.25 MHz external clock input
VPBE Electrical Data/Timing
Table 5-21. Timing Requirements for VPBE CLK Inputs (see Figure 5-27)
NO.
DM355
PARAMETER
MIN
MAX
13.33
160
UNIT
1
tc(PCLK)
Cycle time, PCLK (1)
2
tw(PCLKH)
Pulse duration, PCLK high
5.7
3
tw(PCLKL)
Pulse duration, PCLK low
5.7
4
tt(PCLK)
Transition time, PCLK
5
tc(EXTCLK)
Cycle time, EXTCLK
6
tw(EXTCLKH)
Pulse duration, EXTCLK high
5.7
ns
7
tw(EXTCLKL)
Pulse duration, EXTCLK low
5.7
ns
tt(EXTCLK)
Transition time, EXTCLK
8
(1)
ns
ns
ns
13.33
3
ns
160
ns
3
ns
For timing specifications relating to PCLK see Table 5-17 , Timing Requirements for VPFE PCLK Master/Slave Mode.
3
1
2
PCLK
4
6
4
7
5
EXTCLK
8
8
Figure 5-27. VPBE PCLK and EXTCLK Timing
Table 5-22. Timing Requirements for VPBE Control Input With Respect to PCLK and EXTCLK (1)
Figure 5-28)
NO.
(1)
(2)
(3)
PARAMETER
(2) (3)
DM355
MIN
MAX
(see
UNIT
9
tsu(VCTLV-VCLKIN)
Setup time, VCTL valid before VCLKIN edge
2
ns
10
th(VCLKIN-VCTLV)
Hold time, VCTL valid after VCLKIN edge
1
ns
The VPBE may be configured to operate in either positive or negative edge clocking mode. When in positive edge clocking mode, the
rising edge of VCLKIN is referenced. When in negative edge clocking mode, the falling edge of VCLKIN is referenced.
VCTL = HSYNC, VSYNC, and FIELD
VCLKIN = PCLK or EXTCLK
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VCLKIN(A)
(Positive Edge Clocking)
VCLKIN(A)
(Negative Edge Clocking)
10
9
VCTL(B)
A. VCLKIN = PCLK or EXTCLK
B. VCTL = HSYNC, VSYNC, and FIELD
Figure 5-28. VPBE Input Timing With Respect to PCLK and EXTCLK
Table 5-23. Switching Characteristics Over Recommended Operating Conditions for VPBE Control and
Data Output With Respect to PCLK and EXTCLK (1) (2) (3) (see Figure 5-29)
NO.
DM355
PARAMETER
MIN
11
td(VCLKIN-VCTLV)
Delay time, VCLKIN edge to VCTL valid
12
td(VCLKIN-VCTLIV)
Delay time, VCLKIN edge to VCTL invalid
13
td(VCLKIN-VDATAV)
Delay time, VCLKIN edge to VDATA valid
14
td(VCLKIN-VDATAIV)
Delay time, VCLKIN edge to VDATA invalid
(1)
MAX
13.3
2
UNIT
ns
ns
13.3
2
ns
ns
The VPBE may be configured to operate in either positive or negative edge clocking mode. When in positive edge clocking mode, the
rising edge of VCLKIN is referenced. When in negative edge clocking mode, the falling edge of VCLKIN is referenced.
VCLKIN = PCLK or EXTCLK
VCTL = HSYNC, VSYNC, FIELD, and LCD_OE
(2)
(3)
VCLKIN(A)
(Positive Edge Clocking)
VCLKIN(A)
(Negative Edge Clocking)
11
12
13
14
VCTL(B)
VDATA(C)
A. VCLKIN = PCLK or EXTCLK
B. VCTL = HSYNC, VSYNC, FIELD, and LCD_OE
C. VDATA = COUT[7:0], YOUT[7:0], R[7:3], G[7:2], and B[7:3]
Figure 5-29. VPBE Control and Data Output With Respect to PCLK and EXTCLK
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Table 5-24. Switching Characteristics Over Recommended Operating Conditions for VPBE Control and
Data Output With Respect to VCLK (1) (2) (see Figure 5-30)
NO.
(1)
(2)
DM355
PARAMETER
MIN
MAX
13.33
160
17
tc(VCLK)
Cycle time, VCLK
18
tw(VCLKH)
Pulse duration, VCLK high
5.7
19
tw(VCLKL)
Pulse duration, VCLK low
5.7
20
tt(VCLK)
Transition time, VCLK
21
td(VCLKINH-VCLKH)
Delay time, VCLKIN high to VCLK high
22
td(VCLKINL-VCLKL)
Delay time, VCLKIN low to VCLK low
23
td(VCLK-VCTLV)
Delay time, VCLK edge to VCTL valid
24
td(VCLK-VCTLIV)
Delay time, VCLK edge to VCTL invalid
25
td(VCLK-VDATAV)
Delay time, VCLK edge to VDATA valid
26
td(VCLK-VDATAIV)
Delay time, VCLK edge to VDATA invalid
UNIT
ns
ns
ns
3
ns
2
12
ns
2
12
ns
4
ns
0
ns
4
ns
0
ns
The VPBE may be configured to operate in either positive or negative edge clocking mode. When in positive edge clocking mode, the
rising edge of VCLK is referenced. When in negative edge clocking mode, the falling edge of VCLK is referenced.
VCLKIN = PCLK or EXTCLK. For timing specifications relating to PCLK, see Table 5-17 , Timing Requirements for VPFE PCLK
Master/Slave Mode.
VCLKIN(A)
21
VCLK
19
17
22
18
(Positive Edge
Clocking)
VCLK
(Negative Edge
Clocking)
23
24
25
26
20
20
VCTL(B)
VDATA(C)
A. VCLKIN = PCLK or EXTCLK
B. VCTL = HSYNC, VSYNC, FIELD, and LCD_OE
C. VDATA = COUT[7:0], YOUT[7:0], R[7:3], G[7:2], and B[7:3]
Figure 5-30. VPBE Control and Data Output Timing With Respect to VCLK
5.9.2.4
DAC and Video Buffer Electrical Data/Timing
The DAC and video buffer can be configured in a DAC only configuration or in a DAC and video buffer
configuration. In the DAC only configuration the internal video buffer is not used and an external video
buffer is attached to the DAC. In the DAC and video buffer configuration, the DAC and internal video
buffer are both used and a TV cable may be attached directly to the output of the video buffer. See
Figure 5-31 and Figure 5-32 for recommenced circuits for each configuration.
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Video DAC
Buffer
VREF
IBIAS
IOUT
CBG
0.1 mF
RBIAS
2550W
RLOAD
VFB
499W
DAC Digital Input
DIN
TVOUT
DAC Output Current
Iout [mA]
MSB
1.4 mA
LSB
0
Example for External Circuit
A.
B.
C.
Connect IOUT to a high-impedance video buffer device.
Place capacitors and resistors as close as possible to the DM355.
Configure the VDAC_CONFIG register in the system control module as follows: DINV = 0, PWD_GBZ = 1,
PWD_VBUFZ = 0, ACCUP_EN = X. See the TMS320DM35x Digital Media System-on-Chip (DMSoC) ARM
Subsystem Reference Guide (literature number SPRUFB3) and the TMS320DM35x Digital Media System-on-Chip
Video Processing Back End (VPBE) Reference Guide (literature number SPRUF72) for more information on
VDAC_CONFIG.
Figure 5-31. DAC Only Application Example
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Video DAC and Buffer
VREF
IBIAS
IOUT
VFB
TVOUT
TV monitor
CBG
0.1 mF
RBIAS
2550 Ω
Rfb = 1000 Ω
Rout = 1070 Ω
DAC Digital Input
DIN
Video Buffer Output Voltage
TVOUT [V]
MSB
VOH(VIDBUF)
VOL(VIDBUF)
LSB
A.
B.
C.
0
Place capacitors and resistors as close as possible to the DM355.
You must use the circuit shown in this diagram. Also you must configure the VDAC_CONFIG register in the System
Control module as follows: TRESB4R4 = 0x3, TRESB4R2 = 0x8, TRESB4R1 = 0x8, TRIMBITS = 0x34, PWD_BGZ =
1 (power up VREF), SPEED = 1 (faster), TVINT = don't care, PWD_VBUFZ = 1 (power up video buffer), VREFSET =
don't care, ACCUP_EN = 0 (no A/C coupling), DINV = 1 (invert). See TMS320DM35x Digital Media System-on-Chip
(DMSoC) ARM Subsystem Reference Guide (literature number SPRUFB3) and the TMS320DM35x Digital Media
System-on-Chip Video Processing Back End (VPBE) Reference Guide (literature number SPRUF72) for more
information on the VDAC_CONFIG register and Video Buffer.
For proper TVOUT voltage, you must connect the pin TVOUT directly to the TV. No A/C coupling capacitor or
termination resistor is necessary on your DM355 board. Also, it is assumed that the TV has no internal A/C coupling
capacitor but does have an internal termination resistor, as shown in this diagram. TVOUT voltage will range from
VOL(VIDBUF) to VOH(VIDBUF). See Section 4.3 for the voltage specifications.
Figure 5-32. DAC With Buffer Circuit
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USB 2.0
The DM355 USB2.0 peripheral supports the following features:
• USB 2.0 peripheral at speeds high speed (HS: 480 Mb/s) and full speed (FS: 12 Mb/s)
• USB 2.0 host at speeds HS, FS, and low speed (LS: 1.5 Mb/s)
• All transfer modes (control, bulk, interrupt, and isochronous)
• Four Transmit (TX) and four Receive (RX) endpoints in addition to endpoint 0
• FIFO RAM
– 4K bytes shared by all endpoints.
– Programmable FIFO size
• Includes a DMA sub-module that supports four TX and four RX channels of CPPI 3.0 DMAs
• RNDIS mode for accelerating RNDIS type protocols using short packet termination over USB
• USB OTG extensions, i.e. session request protocol (SRP) and host negotiation protocol (HNP)
The DM355 USB2.0 peripheral does not support the following features:
• On-chip charge pump
• High bandwidth ISO mode is not supported (triple buffering)
• RNDIS mode acceleration for USB sizes that are not multiples of 64 bytes
• Endpoint max USB packet sizes that do not conform to the USB 2.0 spec (for FS/LS: 8, 16, 32, 64,
and 1023 are defined; for HS: 64, 128, 512, and 1024 are defined)
5.10.1 USB2.0 Electrical Data/Timing
Table 5-25. Switching Characteristics Over Recommended Operating Conditions for USB2.0 (see
Figure 5-33)
DM355
NO.
PARAMETER
LOW SPEED
1.5 Mbps
FULL SPEED
12 Mbps
HIGH SPEED (1)
480 Mbps
UNIT
MIN
MAX
MIN
MAX
MIN
1
tr(D)
Rise time, USB_DP and USB_DM signals (2)
75
300
4
20
0.5
ns
2
tf(D)
Fall time, USB_DP and USB_DM signals (2)
75
300
4
20
0.5
ns
80
125
90
111.11
1.3
2
1.3
2
V
2
2
ns
25
2
ns
1
1
ns
10
1
ns
175
ns
(3)
3
tfrfm
Rise/Fall time, matching
4
VCRS
Output signal cross-over voltage (2)
5
tjr(source)NT
Source (Host) Driver jitter, next transition
tjr(FUNC)NT
Function Driver jitter, next transition
6
(4)
tjr(source)PT
Source (Host) Driver jitter, paired transition
tjr(FUNC)PT
Function Driver jitter, paired transition
7
tw(EOPT)
Pulse duration, EOP transmitter
1250
8
tw(EOPR)
Pulse duration, EOP receiver
670
9
t(DRATE)
Data Rate
10
ZDRV
Driver Output Resistance
(1)
(2)
(3)
(4)
1500
160
%
82
1.5
–
MAX
–
ns
12
28
49.5
40.5
480
Mb/s
49.5
Ω
For more detailed specification information, see the Universal Serial Bus Specification Revision 2.0, Chapter 7. Electrical.
Low Speed: CL = 200 pF, Full Speed: CL = 50 pF, High Speed: CL = 50 pF
tfrfm = (tr/tf) x 100. [Excluding the first transaction from the Idle state.]
tjr = tpx(1) - tpx(0)
USB_DM
VCRS
USB_DP
tper − tjr
90% VOH
10% VOL
tr
tf
Figure 5-33. USB2.0 Integrated Transceiver Interface Timing
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USB
VSS_USB_REF
USB_R1
10 K Ω ±1%
Figure 5-34. USB Reference Resistor Routing
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Universal Asynchronous Receiver/Transmitter (UART)
The DM355 contains 3 separate UART modules (1 with hardware flow control). These modules performs
serial-to-parallel conversion on data received from a peripheral device or modem, and parallel-to-serial
conversion on data received from the CPU. Each UART also includes a programmable baud rate
generator capable of dividing the 24MHz reference clock by divisors from 1 to 65,535 to produce a 16 x
clock driving the internal logic. The UART modules support the following features:
• Frequency pre-scale values from 1 to 65,535 to generate appropriate baud rates
• 16-byte storage space for both the transmitter and receiver FIFOs
• Unique interrupts, one for each UART
• Unique EDMA events, both received and transmitted data for each UART
• 1, 4, 8, or 14 byte selectable receiver FIFO trigger level for autoflow control and DMA
• Programmable auto-rts and auto-cts for autoflow control (supported on UART2)
• Programmable serial data formats
– 5, 6, 7, or 8-bit characters
– Even, odd, or no parity bit generation and detection
– 1, 1.5, or 2 stop bit generation
• False start bit detection
• Line break generation and detection
• Internal diagnostic capabilities
– Loopback controls for communications link fault isolation
– Break, parity, overrun, and framing error simulation
• Modem control functions: CTS, RTS (supported on UART2)
5.11.1 UART Electrical Data/Timing
Table 5-26. Timing Requirements for UARTx Receive (see Figure 5-35)
NO.
(1)
PARAMETER
DM355
MIN
MAX
UNIT
4
tw(URXDB)
Pulse duration, receive data bit (RXDn)
0.99U (1)
1.05U (1)
ns
5
tw(URXSB)
Pulse duration, receive start bit
0.99U (1)
1.05U (1)
ns
U = UART baud time = 1/programmed baud rate.
Table 5-27. Switching Characteristics Over Recommended Operating Conditions for UARTx Transmit
(see Figure 5-35)
NO.
1
f(baud)
2
tw(UTXDB)
3
(1)
136
PARAMETER
tw(UTXSB)
DM355
MIN
UART0/1 Maximum programmable baud rate
1.5
UART2 Maximum programmable baud rate
Pulse duration, transmit data bit (TXDn)
Pulse duration, transmit start bit
MAX
5
UNIT
MHz
U - 2 (1)
U + 2 (1)
ns
(1)
U + 2 (1)
ns
U-2
U = UART baud time = 1/programmed baud rate.
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3
2
UART_TXDn
Start
Bit
Data Bits
5
4
UART_RXDn
Start
Bit
Data Bits
Figure 5-35. UART Transmit/Receive Timing
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Serial Port Interface (SPI)
The DM355 contains 3 separate SPI modules. These modules provide a programmable length shift
register which allows serial communication with other SPI devices through a 3 or 4 wire interface (Clock,
Data In, Data Out, and Enable). The SPI supports the following features:
• Master mode operation
• 2 chip selects for interfacing to multiple slave SPI devices.
• 3 or 4 wire interface (Clock, Data In, Data Out, and Enable)
• Unique interrupt for each SPI port
• Separate DMA events for SPI Receive and Transmit
• 16-bit shift register
• Receive buffer register
• Programmable character length (2 to 16 bits)
• Programmable SPI clock frequency range
• 8-bit clock prescaler
• Programmable clock phase (delay or no delay)
• Programmable clock polarity
The SPI modules do not support the following features:
• Slave mode. Only Master mode is supported in DM355 (Master mode means that DM355 provides the
serial clock).
• GPIO mode. GPIO functionality is supported by the GIO modules for those SPI pins that are
multiplexed with GPIO signals.
5.12.1 SPI Electrical Data/Timing
Table 5-28. Timing Requirements for SPI (All Modes) (1) (see Figure 5-36)
NO.
(1)
DM355
PARAMETER
MIN
MAX
37.037 ns
UNIT
1
tc(CLK)
Cycle time, SPI_CLK
ns
2
tw(CLKH)
Pulse duration, SPI_CLK high (All Master Modes)
0.45*T
0.55*T
ns
3
tw(CLKL)
Pulse duration, SPI_CLK low (All Master Modes
0.45*T
0.55*T
ns
T = tc(CLK) = SPI_CLK period is equal to the SPI module clock divided by a configurable divider.
1
2
SPIx_CLK
(Clock Polarity = 0)
3
SPIx_CLK
(Clock Polarity = 1)
Figure 5-36. SPI_CLK Timing
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SPI Master Mode Timings (Clock Phase = 0)
Table 5-29. Timing Requirements for SPI Master Mode [Clock Phase = 0]
NO.
(1)
(see Figure 5-37)
DM355
PARAMETER
MIN
MAX
UNIT
4
tsu(DIV-CLKL)
Setup time, SPI_DI (input) valid before SPI_CLK (output)
falling edge
Clock Polarity = 0
.5P + 3
ns
5
tsu(DIV-CLKH)
Setup time, SPI_DI (in put) valid before SPI_CLK (output)
rising edge
Clock Polarity = 1
.5P + 3
ns
6
th(CLKL-DIV)
Hold time, SPI_DI (input) valid after SPI_CLK (output) falling
Clock Polarity = 0
edge
.5P + 3
ns
7
th(CLKH-DIV)
Hold time, SPI_DI (input) valid after SPI_CLK (output) rising
edge
2.5P + 3
ns
(1)
Clock Polarity = 1
P = 1/SYSCLK2 in nanoseconds (ns). For example, if the SYSCLK2 frequency is 135 MHz, use P = 7.41 ns. See Section 3.5 , Device
Clocking, for more information on the supported clock configurations of the DM355.
Table 5-30. Switching Characteristics Over Recommended Operating Conditions for SPI Master Mode
[Clock Phase = 0] (see Figure 5-37)
NO.
(1)
(2)
DM355
PARAMETER
MIN
MAX
UNIT
8
td(CLKH-DOV)
Delay time, SPI_CLK (output) rising edge to SPI_DO
(output) transition
Clock Polarity = 0
-4
5
ns
9
td(CLKL-DOV)
Delay time, SPI_CLK (output) falling edge to SPI_DO
(output) transition
Clock Polarity = 1
-4
5
ns
10
td(ENL-CLKH/L)
Delay time, SPI_EN[1:0] (output) falling edge to first SPI_CLK (output) rising or falling
edge
2P (1)
(1)
ns
11
td(CLKH/L-ENH)
Delay time, SPI_CLK (output) rising or falling edge to SPI_EN[1:0] (output) rising edge
P+.5C (2
(2)
ns
)
The delay time can be adjusted using the SPI module register C2TDELAY. See the TMS320DM355 DMSoC Serial Peripheral Interface
(SPI) User's Guide (literature number SPRUED4).
The delay time can be adjusted using the SPI module register T2CDELAY. See the TMS320DM355 DMSoC Serial Peripheral Interface
(SPI) User's Guide (literature number SPRUED4).
11
SPI_EN
SPI_CLK
(Clock Polarity = 0)
10
SPI_CLK
(Clock Polarity = 1)
7
6
4
5
SPI_DI
(Input)
MSB IN
8
SPI_DO
(Output)
DATA
LSB IN
9
MSB OUT
DATA
LSB OUT
Figure 5-37. SPI Master Mode External Timing (Clock Phase = 0)
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SPI Master Mode Timings (Clock Phase = 1)
Table 5-31. Timing Requirements for SPI Master Mode [Clock Phase = 1] (see Figure 5-38)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
13
tsu(DIV-CLKL)
Setup time, SPI_DI (input) valid before SPI_CLK (output)
rising edge
Clock Polarity = 0
.5P + 3
ns
14
tsu(DIV-CLKH)
Setup time, SPI_DI (in put) valid before SPI_CLK (output)
falling edge
Clock Polarity = 1
.5P + 3
ns
15
th(CLKL-DIV)
Hold time, SPI_DI (input) valid after SPI_CLK (output) rising
edge
Clock Polarity = 0
.5P + 3
ns
16
th(CLKH-DIV)
Hold time, SPI_DI (input) valid after SPI_CLK (output) falling
Clock Polarity = 1
edge
.5P + 3
ns
Table 5-32. Switching Characteristics Over Recommended Operating Conditions for SPI Master Mode
[Clock Phase = 1] (see Figure 5-38)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
17
td(CLKL-DOV)
Delay time, SPI_CLK (output) falling edge to SPI_DO
(output) transition
Clock Polarity = 0
-4
5
ns
18
td(CLKH-DOV)
Delay time, SPI_CLK (output) rising edge to SPI_DO
(output) transition
Clock Polarity = 1
-4
5
ns
19
td(ENL-CLKH/L)
Delay time, SPI_EN[1:0] (output) falling edge to first SPI_CLK (output) rising or falling
edge
2P+.5C
(1)
ns
20
td(CLKL/H-DOHz) Delay time, SPI_CLK (output) falling or rising edge to SPI_DO (output) high impedance
P (2)
(2)
ns
(1)
(2)
(1)
The delay time can be adjusted using the SPI module register C2TDELAY. See the TMS320DM355 DMSoC Serial Peripheral Interface
(SPI) User's Guide (literature number SPRUED4).
The delay time can be adjusted using the SPI module register T2CDELAY. See the TMS320DM355 DMSoC Serial Peripheral Interface
(SPI) User's Guide (literature number SPRUED4).
SPI_EN
SPI_CLK
(Clock Polarity = 0)
19
SPI_CLK
(Clock Polarity = 1)
15
13
SPI_DI
(Input)
14
MSB IN
16
DATA
18
17
SPI_DO
(Output)
MSB OUT
LSB IN
DATA
LSB OUT
Figure 5-38. SPI Master Mode External Timing (Clock Phase = 1)
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5.13 Inter-Integrated Circuit (I2C)
The inter-integrated circuit (I2C) module provides an interface between DM355 and other devices
compliant with Philips Semiconductors Inter-IC bus (I2C-bus) specification version 2.1 and connected by
way of an I2C-bus. External components attached to this 2-wire serial bus can transmit/receive up to 8-bit
data to/from the DM355 through the I2C module.
The I2C port supports:
• Compatible with Philips I2C Specification Revision 2.1 (January 2000)
• Fast Mode up to 400 Kbps (no fail-safe I/O buffers)
• Noise Filter to Remove Noise 50 ns or less
• Seven- and Ten-Bit Device Addressing Modes
• Master (Transmit/Receive) and Slave (Transmit/Receive) Functionality
• Events: DMA, Interrupt, or Polling
• Slew-Rate Limited Open-Drain Output Buffers
For more detailed information on the I2C peripheral, see the TMS320DM35x Digital Media
System-on-Chip (DMSoC) Inter-Integrated Circuit (I2C) Peripheral Reference Guide (literature number
SPRUEE0).
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I2C Electrical Data/Timing
5.13.1.1
Inter-Integrated Circuits (I2C) Timing
Table 5-33. Timing Requirements for I2C Timings (1) (see Figure 5-39)
DM355
NO.
PARAMETER
1
STANDARD
MODE
FAST MODE
MIN
MIN
MAX
UNIT
MAX
tc(SCL)
Cycle time, SCL
10
2.5
ms
2
tsu(SCLH-SDAL)
Setup time, SCL high before SDA low (for a repeated START
condition)
4.7
0.6
ms
3
th(SCLL-SDAL)
Hold time, SCL low after SDA low (for a START and a repeated
START condition)
4
0.6
ms
4
tw(SCLL)
Pulse duration, SCL low
4.7
1.3
ms
5
tw(SCLH)
Pulse duration, SCL high
4
0.6
ms
6
tsu(SDAV-SCLH)
Setup time, SDA valid before SCL high
250
7
th(SDA-SCLL)
Hold time, SDA valid after SCL low (For I2C bus™ devices)
0 (3)
0 (3)
8
tw(SDAH)
Pulse duration, SDA high between STOP and START
conditions
4.7
1.3
9
tr(SDA)
Rise time, SDA
1000
20 + 0.1Cb
300
ns
10
tr(SCL)
Rise time, SCL
1000
20 + 0.1Cb
300
ns
11
tf(SDA)
Fall time, SDA
300
20 + 0.1Cb
300
ns
12
tf(SCL)
Fall time, SCL
300
20 + 0.1Cb
300
ns
13
tsu(SCLH-SDAH)
Setup time, SCL high before SDA high (for STOP condition)
14
tw(SP)
Pulse duration, spike (must be suppressed)
15
Cb
(1)
(2)
(3)
(4)
(5)
(5)
100
(2)
4
ns
0.9 (4)
ms
(5)
(5)
(5)
(5)
0.6
ms
0
Capacitive load for each bus line
ms
400
50
ns
400
pF
The I2C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered
down.
A Fast-mode I2C-bus™ device can be used in a Standard-mode I2C-bus system, but the requirement tsu(SDA-SCLH)≥ 250 ns must then be
met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch
the LOW period of the SCL signal, it must output the next data bit to the SDA line tr max + tsu(SDA-SCLH)= 1000 + 250 = 1250 ns
(according to the Standard-mode I2C-Bus Specification) before the SCL line is released.
A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL signal) to bridge the
undefined region of the falling edge of SCL.
The maximum th(SDA-SCLL) has only to be met if the device does not stretch the low period [tw(SCLL)] of the SCL signal.
Cb = total capacitance of one bus line in pF. If mixed with HS-mode devices, faster fall-times are allowed.
11
9
SDA
6
8
14
4
13
5
10
SCL
1
12
3
2
7
3
Stop
Start
Repeated
Start
Stop
Figure 5-39. I2C Receive Timings
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Table 5-34. Switching Characteristics for I2C Timings (1) (see Figure 5-40)
DM355
NO.
(1)
PARAMETER
STANDARD
MODE
FAST MODE
MIN
MIN
MAX
UNIT
MAX
16
tc(SCL)
Cycle time, SCL
10
2.5
ms
17
td(SCLH-SDAL)
Delay time, SCL high to SDA low (for a repeated START condition)
4.7
0.6
ms
18
td(SDAL-SCLL)
Delay time, SDA low to SCL low (for a START and a repeated
START condition)
4
0.6
ms
19
tw(SCLL)
Pulse duration, SCL low
4.7
1.3
ms
20
tw(SCLH)
Pulse duration, SCL high
4
0.6
ms
21
td(SDAV-SCLH)
Delay time, SDA valid to SCL high
250
100
22
tv(SCLL-SDAV)
Valid time, SDA valid after SCL low (For I2C devices)
0
0
23
tw(SDAH)
Pulse duration, SDA high between STOP and START conditions
4.7
1.3
28
td(SCLH-SDAH)
Delay time, SCL high to SDA high (for STOP condition)
4
0.6
29
Cp
Capacitance for each I2C pin
10
ns
0.9
ms
ms
ms
10
pF
Cb = total capacitance of one bus line in pF. If mixed with HS-mode devices, faster fall-times are allowed.
CAUTION
The DM355 I2C pins use a standard ±4-mA LVCMOS buffer, not the slow I/OP buffer
defined in the I2C specification. Series resistors may be necessary to reduce noise at
the system level.
SDA
21
23
19
28
20
SCL
16
18
17
22
18
Stop
Start
Repeated
Start
Stop
Figure 5-40. I2C Transmit Timings
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5.14 Audio Serial Port (ASP)
DM355 includes two separate ASP controllers. The primary use for the audio serial port (ASP) is for audio
interface purposes. The primary audio modes that are supported by the ASP are the AC97 and IIS modes.
In addition to the primary audio modes, the ASP supports general serial port receive and transmit
operation, but is not intended to be used as a high-speed interface. The ASP is backward compatible with
other TI ASPs. The ASP supports the following features:
• Full-duplex communication
• Double-buffered data registers, which allow a continuous data stream
• Independent framing and clocking for receive and transmit
• External shift clock generation or an internal programmable frequency shift clock
• Double-buffered data registers, which allow a continuous data stream
• Independent framing and clocking for receive and transmit
• Direct interface to industry-standard codecs, analog interface chips (AICs), and other serially
connected analog-to-digital (A/D) and digital-to-analog (D/A) devices
• Direct interface to AC97 compliant devices (the necessary multiphase frame synchronization capability
is provided)
• Direct interface to IIS compliant devices
• Direct interface to SPI protocol in master mode only
• A wide selection of data sizes, including 8, 12, 16, 20, 24, and 32 bits
• m-Law and A-Law companding
• 8-bit data transfers with the option of LSB or MSB first
• Programmable polarity for both frame synchronization and data clocks
• Highly programmable internal clock and frame generation
For more detailed information on the ASP peripheral, see the TMS320DM35x Digital Media
System-on-Chip (DMSoC) Audio Serial Port (ASP) Reference Guide (literature number SPRUED3).
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ASP Electrical Data/Timing
5.14.1.1
Audio Serial Port (ASP) Timing
Table 5-35. Timing Requirements for ASP (1) (see Figure 5-41)
NO.
15
(1)
(2)
(3)
(4)
DM355
PARAMETER
tc(CLK)
Cycle time, CLK
MIN
CLK ext
16
OTG(CLKS)
Pulse duration, CLKR/X high or CLKR/X low
5
tsu(FRH-CKRL)
Setup time, external FSR high before CLKR low
6
th(CKRL-FRH)
Hold time, external FSR high after CLKR low
7
tsu(DRV-CKRL)
Setup time, DR valid before CLKR low
8
th(CKRL-DRV)
Hold time, DR valid after CLKR low
10
tsu(FXH-CKXL)
Setup time, external FSX high before CLKX low
11
th(CKXL-FXH)
Hold time, external FSX high after CLKX low
CLKS ext
MAX
38.5 or 2P (2)
19.25 or P
(3)
21
CLKR ext
6
CLKR int
0
CLKR ext
6
CLKR int
21
CLKR ext
6
CLKR int
0
CLKR ext
6
CLKX int
21
CLKX ext
6
CLKX int
0
CLKX ext
10
ns
(2) (3)
(4)
CLKR int
UNIT
ns
ns
ns
ns
ns
ns
ns
CLKRP = CLKXP = FSRP = FSXP = 0. If polarity of any of the signals is inverted, then the timing references of that signal are also
inverted.
P = (1/SYSCLK2), where SYSCLK2 is an output clock of PLLC1 (see Section 3.5 ) .
Use which ever value is greater.
The ASP does not have a duty cycle specification, just ensure that the minimum pulse duration specification is met.
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Table 5-36. Switching Characteristics Over Recommended Operating Conditions for ASP (1)
(see Figure 5-41)
NO.
DM355
PARAMETER
Cycle time, CLKR/X
MIN
38.5 or 2P (3)
tc(CKRX)
17
td(CLKS-CLKRX) Delay time, CLKS high to internal CLKR/X
CLKR/X int
1
24
3
tw(CKRX)
CLKR/X int
C - 1 (6)
C + 1 (6)
CLKR int
3
25
CLKR ext
3
25
CLKX int
-4
8
CLKX ext
3
25
4
td(CKRH-FRV)
Delay time, CLKR high to internal FSR valid
9
td(CKXH-FXV)
Delay time, CLKX high to internal FSX valid
12
tdis(CKXHDXHZ)
Disable time, DX high impedance following last data
bit from CLKX high
13
14
(1)
(2)
(3)
(4)
(5)
(6)
146
td(CKXH-DXV)
Delay time, CLKX high to DX valid
td(FXH-DXV)
Delay time, FSX high to DX valid
ONLY applies when in data
delay 0 (XDATDLY = 00b) mode
UNIT
(4)
2
Pulse duration, CLKR/X high or CLKR/X low
CLKR/X int
MAX
(2)
ns
(5)
ns
ns
ns
CLKX int
12
ns
CLKX ext
12
ns
CLKX int
-5
12
ns
CLKX ext
3
25
ns
FSX int
14
FSX ext
25
ns
CLKRP = CLKXP = FSRP = FSXP = 0. If polarity of any of the signals is inverted, then the timing references of that signal are also
inverted.
Minimum delay times also represent minimum output hold times.
Minimum CLKR/X cycle times must be met, even when CLKR/X is generated by an internal clock source. Minimum CLKR/X cycle times
are based on internal logic speed; the maximum usable speed may be lower due to EDMA limitations and AC timing requirements.
P = (1/SYSCLK2), where SYSCLK2 is an output clock of PLLC1 (see Section 3.5 ) .
Use which ever value is greater.
C = H or L
S = sample rate generator input clock = P if CLKSM = 1 (P = 1/SYSCLK2, where SYSCLK2 is an output of PLLC1 (see Section 3.5 ) )
S = sample rate generator input clock = CLKS if CLKSM = 0
H = CLKX high pulse width = (CLKGDV/2 + 1) * S if CLKGDV is even
H = (CLKGDV + 1)/2 * S if CLKGDV is odd or zero
L = CLKX low pulse width = (CLKGDV/2) * S if CLKGDV is even
L = (CLKGDV + 1)/2 * S if CLKGDV is odd or zero
CLKGDV should be set appropriately to ensure the ASP bit rate does not exceed the maximum limit (see footnote (3) above).
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16
15
16
CLKS
2
17
3
3
CLKR
4
4
FSR (int)
5
6
FSR (ext)
7
8
Bit(n-1)
DR
(n-2)
(n-3)
2
17
3
3
CLKX
9
FSX (int)
11
10
FSX (ext)
FSX
(XDATDLY=00b)
14
13(A)
Bit(n-1)
12
DX
Bit 0
13(A)
(n-2)
(n-3)
A. Parameter No. 13 applies to the first data bitonly when XDATDLY ≠ 0.
Figure 5-41. ASP Timing
Table 5-37. ASP as SPI Timing Requirements
CLKSTP = 10b, CLKXP = 0 (see Figure 5-42)
NO.
MASTER
PARAMETER
MIN
MAX
UNIT
M30
tsu(DRV-CKXL)
Setup time, DR valid before CLKX low
11
ns
M31
th(CKXL-DRV)
Hold time, DR valid after CLKX low
0
ns
Table 5-38. ASP as SPI Switching Characteristics (1)
(2)
CLKSTP = 10b, CLKXP = 0 (see Figure 5-42)
NO.
M33
(1)
(2)
(3)
(4)
MASTER
PARAMETER
tc(CKX)
MIN
MAX
38.5 or
2P (1) (3)
Cycle time, CLKX
UNIT
ns
(2)
T–2
T+3
ns
L1 – 2
L1 + 2
ns
–2
6
ns
L1 – 3
L1 +3
ns
M24
td(CKXL-FXH)
Delay time, CLKX low to FSX high
M25
td(FXL-CKXH)
Delay time, FSX low to CLKX high (4)
M26
td(CKXH-DXV)
Delay time, CLKX high to DX valid
M27
tdis(CKXL-DXHZ)
Disable time, DX high impedance following last data bit from CLKX low
P = (1/SYSCLK2), where SYSCLK2 is an output clock of PLLC1 (see Section 3.5 ) .
T = CLKX period = (1 + CLKGDV) × 2P
L1 = CLKX low pulse width = T/2 when CLKGDV is odd or zero and = (CLKGDV/2) × 2P when CLKGDV is even
Use which ever value is greater.
FSX should be low before the rising edge of clock to enable slave devices and then begin a SPI transfer at the rising edge of the master
clock (CLKX).
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CLKX
M24
M33
M25
FSX
M27
DX
Bit 0
Bit(n-1)
M26
(n-2)
Bit(n-1)
M31
(n-2)
M30
DR
Bit 0
(n-3)
(n-3)
(n-4)
(n-4)
Figure 5-42. ASP as SPI: CLKSTP = 10b, CLKXP = 0
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Table 5-39. ASP as SPI Timing Requirements
CLKSTP = 11b, CLKXP = 0
NO.
MASTER
PARAMETER
MIN
MAX
UNIT
M39
tsu(DRV-CKXH)
Setup time, DR valid before CLKX high
11
ns
M40
th(CKXH-DRV)
Hold time, DR valid after CLKX high
1
ns
Table 5-40. ASP as SPI Switching Characteristics (1)
(2)
CLKSTP = 11b, CLKXP = 0 (see Figure 5-43)
NO.
(1)
(2)
(3)
(4)
(5)
MASTER
PARAMETER
MIN
MAX
38.5 or 2P (1)
UNIT
M42
tc(CKX)
Cycle time, CLKX
ns
M34
td(CKXL-FXH)
Delay time, CLKX low to FSX high (4)
L1 – 2
L1 + 3
ns
M35
td(FXL-CKXH)
Delay time, FSX low to CLKX high (5)
T–2
T+2
ns
M36
td(CKXL-DXV)
Delay time, CLKX low to DX valid
–2
6
ns
M37
tdis(CKXL-DXHZ)
Disable time, DX high impedance following last data bit from
CLKX low
–3
3
ns
M38
td(FXL-DXV)
Delay time, FSX low to DX valid
H1 – 2
H1 + 10
ns
(3)
P = (1/SYSCLK2), where SYSCLK2 is an output clock of PLLC1 (see Section 3.5 ) .
T = CLKX period = (1 + CLKGDV) × 2P
L1 = CLKX low pulse width = T/2 when CLKGDV is odd or zero and = (CLKGDV/2) × 2P when CLKGDV is even
H1 = CLKX high pulse width = T/2 when CLKGDV is odd or zero and = (CLKGDV/2 + 1) × 2P when CLKGDV is even
Use which ever value is greater.
FSRP = FSXP = 1. As a SPI master, FSX is inverted to provide active-low slave-enable output.
CLKXM = FSXM = 1, CLKRM = FSRM = 0 for master ASP
FSX should be low before the rising edge of clock to enable slave devices and then begin a SPI transfer at the rising edge of the master
clock (CLKX).
CLKX
M34
M35
M37
M38
M42
FSX
DX
Bit 0
Bit(n-1)
M39
DR
Bit 0
M36
(n-2)
(n-3)
(n-4)
M40
Bit(n-1)
(n-2)
(n-3)
(n-4)
Figure 5-43. ASP as SPI: CLKSTP = 11b, CLKXP = 0
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Table 5-41. ASP as SPI Timing Requirements
CLKSTP = 10b, CLKXP = 1 (see Figure 5-44)
NO.
MASTER
PARAMETER
MIN
MAX
UNIT
M49
tsu(DRV-CKXH)
Setup time, DR valid before CLKX high
11
ns
M50
th(CKXH-DRV)
Hold time, DR valid after CLKX high
0
ns
Table 5-42. ASP as SPI Switching Characteristics (1)
(2)
CLKSTP = 10b, CLKXP = 1 (see Figure 5-44)
NO.
MASTER
PARAMETER
MIN
MAX
38.5 or 2P (1)
UNIT
M52
tc(CKX)
Cycle time, CLKX
M43
td(CKXH-FXH)
Delay time, CLKX high to FSX high (4)
T–1
T+3
ns
M44
td(FXL-CKXL)
Delay time, FSX low to CLKX low (5)
H1 – 2
H1 + 2
ns
M45
td(CKXL-DXV)
Delay time, CLKX low to DX valid
–2
6
ns
M46
tdis(CKXH-DXHZ)
Disable time, DX high impedance following last data bit from
CLKX high
H1 – 3
H1 + 3
ns
(1)
(2)
(3)
(4)
(5)
ns
(3)
P = (1/SYSCLK2), where SYSCLK2 is an output clock of PLLC1 (see Section 3.5 ) .
T = CLKX period = (1 + CLKGDV) × 2P
H1 = CLKX high pulse width = T/2 when CLKGDV is odd or zero and = (CLKGDV/2 + 1) × 2P when CLKGDV is even
Use which ever value is greater.
FSRP = FSXP = 1. As a SPI master, FSX is inverted to provide active-low slave-enable output.
CLKXM = FSXM = 1, CLKRM = FSRM = 0 for master ASP
FSX should be low before the rising edge of clock to enable slave devices and then begin a SPI transfer at the rising edge of the master
clock (CLKX).
CLKX
M43
FSX
M44
M52
M46
DX
Bit 0
Bit(n-1)
M49
DR
Bit 0
Bit(n-1)
M45
(n-2)
(n-3)
M50
(n-2)
(n-3)
(n-4)
(n-4)
Figure 5-44. ASP as SPI: CLKSTP = 10b, CLKXP = 1
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Table 5-43. ASP as SPI Timing Requirements
CLKSTP = 11b, CLKXP = 1 (see Figure 5-45)
NO.
MASTER
PARAMETER
MIN
MAX
UNIT
M58
tsu(DRV-CKXL)
Setup time, DR valid before CLKX low
11
ns
M59
th(CKXL-DRV)
Hold time, DR valid after CLKX low
0
ns
Table 5-44. ASP as SPI Switching Characteristics (1)
(2)
CLKSTP = 11b, CLKXP = 1 (see Figure 5-45)
NO.
(1)
(2)
(3)
(4)
(5)
MASTER
PARAMETER
MIN
MAX
38.5 or 2P (3)
UNIT
M62
tc(CKX)
Cycle time, CLKX
ns
M53
td(CKXH-FXH)
Delay time, CLKX high to FSX high (4)
H1 – 1
H1 + 3
ns
M54
td(FXL-CKXL)
Delay time, FSX low to CLKX low (5)
T–2
T+2
ns
M55
td(CKXL-DXV)
Delay time, CLKX low to DX valid
–2
6
ns
M56
tdis(CKXH-DXHZ)
Disable time, DX high impedance following last data bit from
CLKX high
–3
+3
ns
M57
td(FXL-DXV)
Delay time, FSX low to DX valid
L1 – 1
L1 + 10
ns
(3)
P = (1/SYSCLK2), where SYSCLK2 is an output clock of PLLC1 (see Section 3.5 ) .
T = CLKX period = (1 + CLKGDV) × 2P
L1 = CLKX low pulse width = T/2 when CLKGDV is odd or zero and = (CLKGDV/2) × 2P when CLKGDV is even
H1 = CLKX high pulse width = T/2 when CLKGDV is odd or zero and = (CLKGDV/2 + 1) × 2P when CLKGDV is even
Use which ever value is greater.
FSRP = FSXP = 1. As a SPI master, FSX is inverted to provide active-low slave-enable output.
CLKXM = FSXM = 1, CLKRM = FSRM = 0 for master ASP
FSX should be low before the rising edge of clock to enable slave devices and then begin a SPI transfer at the rising edge of the master
clock (CLKX).
CLKX
M53
M54
M62
FSX
DX
M57
M56
Bit 0
Bit(n-1)
M58
DR
Bit 0
Bit(n-1)
M55
(n-2)
(n-3)
M59
(n-2)
(n-3)
(n-4)
(n-4)
Figure 5-45. ASP as SPI: CLKSTP = 11b, CLKXP = 1
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5.15 Timer
The DM355 contains four software-programmable timers. Timer 0, Timer 1, and Timer 3 (general-purpose
timers) can be programmed in 64-bit mode, dual 32-bit unchained mode, or dual 32-bit chained mode.
Timer 3 supports additional features over the other timers: external clock/event input, period reload, output
event tied to Real Time Out (RTO) module, external event capture, and timer counter register read reset.
Timer 2 is used only as a watchdog timer. Timer 2 is tied to device reset.
• 64-bit count-up counter
• Timer modes:
– 64-bit general-purpose timer mode (Timer 0, 1, 3)
– Dual 32-bit general-purpose timer mode (Timer 0, 1, 3)
– Watchdog timer mode (Timer 2)
• Two possible clock sources:
– Internal clock
– External clock/event input via timer input pins (Timer 3)
• Three possible operation modes:
– One-time operation (timer runs for one period then stops)
– Continuous operation (timer automatically resets after each period)
– Continuous operation with period reload (Timer 3)
• Generates interrupts to the ARM CPU
• Generates sync event to EDMA
• Generates output event to device reset (Timer 2)
• Generates output event to Real Timer Out (RTO) module (Timer 3)
• External event capture via timer input pins (Timer 3)
For more detailed information, see the TMS320DM355 DMSoC 64-bit Timer User's Guide for more
information (literature number SPRUEE5).
5.15.1
Timer Electrical Data/Timing
Table 5-45. Timing Requirements for Timer Input (1)
NO.
(2) (3)
(see Figure 5-46)
DM355
PARAMETER
MIN
MAX
1
tc(TIN)
Cycle time, TIM_IN
2
tw(TINPH)
Pulse duration, TIM_IN high
0.45C
0.55C
ns
3
tw(TINPL)
Pulse duration, TIM_IN low
0.45C
0.55C
ns
0.25C
or 10 (4)
ns
4
(1)
(2)
(3)
(4)
tt(TIN)
4P
UNIT
Transition time, TIM_IN
ns
GPIO000, GPIO001, GPIO002, and GPIO003 can be used as external clock inputs for Timer 3. See the TMS320DM355 DMSoC 64-bit
Timer User's Guide for more information (literature number SPRUEE5).
P = MXI1/CLKIN cycle time in ns. For example, when MXI1/CLKIN frequency is 24 MHz use P = 41.6 ns.
C = TIM_IN cycle time in ns. For example, when TIM_IN frequency is 24 MHz use C = 41.6 ns
Whichever is smaller. C = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve
noise immunity on input signals.
1
2
4
3
4
TIM_IN
Figure 5-46. Timer Input Timing
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5.16
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Pulse Width Modulator (PWM)
The DM355 contains 4 separate Pulse Width Modulator (PWM) modules. The pulse width modulator
(PWM) feature is very common in embedded systems. It provides a way to generate a pulse periodic
waveform for motor control or can act as a digital-to-analog converter with some external components.
This PWM peripheral is basically a timer with a period counter and a first-phase duration comparator,
where bit width of the period and first-phase duration are both programmable. The Pulse Width Modulator
(PWM) modules support the following features:
• 32-bit period counter
• 32-bit first-phase duration counter
• 8-bit repeat count for one-shot operation. One-shot operation will produce N + 1 periods of the
waveform, where N is the repeat counter value.
• Configurable to operate in either one-shot or continuous mode
• Buffered period and first-phase duration registers
• One-shot operation triggerable by hardware events with programmable edge transitions. (low-to-high or
high-to-low).
• One-shot operation triggerable by the CCD VSYNC output of the video processing subsystem (VPSS),
which allows any of the PWM instantiations to be used as a CCD timer. This allows the DM355 module
to support the functions provided by the CCD timer feature (generating strobe and shutter signals).
• One-shot operation generates N+1 periods of waveform, N being the repeat count register value
• Configurable PWM output pin inactive state
• Interrupt and EDMA synchronization events
5.16.1 PWM0/1/2/3 Electrical/Timing Data
Table 5-46. Switching Characteristics Over Recommended Operating Conditions for PWM0/1/2/3
Outputs (1) (see Figure 5-47 and Figure 5-48)
NO.
MIN
1
tw(PWMH)
Pulse duration, PWMx high
P
2
tw(PWML)
Pulse duration, PWMx low
P
3
tt(PWM)
Transition time, PWMx
td(CCDC-PWMV)
Delay time, CCDC(VD) trigger event to PWMx valid
4
(1)
DM355
PARAMETER
MAX
UNIT
ns
ns
.05P
ns
10
ns
P = MXI1/CLKIN cycle time in ns. For example, when MXI1/CLKIN frequency is 24 MHz use P = 41.6 ns.
1
2
PWM0/1/2/3
3
3
Figure 5-47. PWM Output Timing
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VD(CCDC)
4
PWM0
INVALID
VALID
4
PWM1
VALID
INVALID
4
PWM2
VALID
INVALID
4
PWM3
INVALID
VALID
Figure 5-48. PWM Output Delay Timing
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5.17
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
Real Time Out (RTO)
The DM355 Real Time Out (RTO) peripheral supports the following features:
• Four separate outputs
• Trigger on Timer3 event
5.17.1 RTO Electrical/Timing Data
Table 5-47. Switching Characteristics Over Recommended Operating Conditions for RTO Outputs (see
Figure 5-49 and Figure 5-50)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
1
tw(RTOH)
Pulse duration, RTOx high
P
ns
2
tw(RTOL)
Pulse duration, RTOx low
P
ns
3
tt(RTO)
Transition time, RTOx
.1P
ns
4
td(TIMER3-RTOV)
Delay time, Timer 3 (TINT12 or TINT34) trigger event to RTOx valid
10
ns
1
2
RTO0/1/2/3
3
3
Figure 5-49. RTO Output Timing
TINT12/TINT34
(Timer3)
4
RTO0
INVALID
VALID
4
RTO1
VALID
INVALID
4
RTO2
VALID
INVALID
4
RTO3
INVALID
VALID
Figure 5-50. RTO Output Delay Timing
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5.18 IEEE 1149.1 JTAG
The JTAG (1) interface is used for BSDL testing and emulation of the DM355 device.
The DM355 device requires that both TRST and RESET be asserted upon power up to be properly
initialized. While RESET initializes the device, TRST initializes the device's emulation logic. Both resets
are required for proper operation.
While both TRST and RESET need to be asserted upon power up, only RESET needs to be released for
the device to boot properly. TRST may be asserted indefinitely for normal operation, keeping the JTAG
port interface and device's emulation logic in the reset state.
TRST only needs to be released when it is necessary to use a JTAG controller to debug the device or
exercise the device's boundary scan functionality. Note: TRST is synchronous and must be clocked by
TCK; otherwise, the boundary scan logic may not respond as expected after TRST is asserted.
RESET must be released only in order for boundary-scan JTAG to read the variant field of IDCODE
correctly. Other boundary-scan instructions work correctly independent of current state of RESET.
For maximum reliability, DM355 includes an internal pulldown (PD) on the TRST pin to ensure that TRST
will always be asserted upon power up and the device's internal emulation logic will always be properly
initialized.
JTAG controllers from Texas Instruments actively drive TRST high. However, some third-party JTAG
controllers may not drive TRST high but expect the use of a pullup resistor on TRST.
When using this type of JTAG controller, assert TRST to initialize the device after powerup and externally
drive TRST high before attempting any emulation or boundary scan operations. Following the release of
RESET, the low-to-high transition of TRST must be "seen" to latch the state of EMU1 and EMU0. The
EMU[1:0] pins configure the device for either Boundary Scan mode or Emulation mode. For more detailed
information, see the terminal functions section of this data sheet.
(1)
156
IEEE Standard 1149.1-1990 Standard-Test-Access Port and Boundary Scan Architecture.
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5.18.1
SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010
JTAG Test-Port Electrical Data/Timing
Table 5-48. Timing Requirements for JTAG Test Port (see Figure 5-51)
NO.
DM355
PARAMETER
MIN
MAX
UNIT
1
tc(TCK)
Cycle time, TCK
20
ns
2
tw(TCKH)
Pulse duration, TCK high
8
ns
3
tw(TCKL)
Pulse duration, TCK low
8
ns
4
tsu(TDIV-RTCKH)
Setup time, TDI valid before RTCK high
10
ns
5
th(RTCKH-TDIIV)
Hold time, TDI valid after RTCK high
9
ns
6
tsu(TMSV-RTCKH)
Setup time, TMS valid before RTCK high
2
ns
7
th(RTCKH-TMSIV)
Hold time, TMS valid after RTCK high
5
ns
1
2
3
TCK
RTCK
TDO
5
4
TDI
7
6
TMS
Figure 5-51. JTAG Input Timing
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Table 5-49. Switching Characteristics Over Recommended Operating Conditions for JTAG Test Port
(see Figure 5-51)
NO.
DM355
PARAMETER
MIN
8
tc(RTCK)
Cycle time, RTCK
20
9
tw(RTCKH)
Pulse duration, RTCK high
10
10
tw(RTCKL)
Pulse duration, RTCK low
10
11
tr(all JTAG outputs)
Rise time, all JTAG outputs
12
tf(all JTAG outputs)
Fall time, all JTAG outputs
13
td(RTCKL-TDOV)
Delay time, TCK low to TDO valid
0
MAX
UNIT
ns
1.3
ns
1.3
ns
0.25*tc(RT
CK)
ns
8
9
10
RTCK
13
TDO
Figure 5-52. JTAG Output Timing
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6 Mechanical Data
The following table(s) show the thermal resistance characteristics for the PBGA − ZCE mechanical
package. Note that micro-vias are not required. Contact your TI representative for routing
recommendations.
6.1
Thermal Data for ZCE
The following table shows the thermal resistance characteristics for the PBGA − ZCE mechanical
package.
Table 6-1. Thermal Resistance Characteristics (PBGA Package) [ZCE]
°C/W (1)
NO.
(1)
6.2
1
RΘJC
Junction-to-case
7.2
2
RΘJB
Junction-to-board
11.4
3
RΘJA
Junction-to-free air
27.0
4
PsiJT
Junction-to-package top
0.1
5
PsiJB
Junction-to-board
11.3
The junction-to-case measurement was conducted in a JEDEC defined 2S2P system and will change based on environment as well as
application. For more information, see these three EIA/JEDEC standards:
• EIA/JESD51-2, Integrated Circuits Thermal Test Method Environment Conditions - Natural Convection (Still Air)
• EIA/JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
• JESD51-7, High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
Packaging Information
The following packaging information and addendum reflect the most current data available for the
designated device(s). This data is subject to change without notice and without revision of this document.
Note that micro-vias are not required for this package.
Mechanical Data
Copyright © 2007–2010, Texas Instruments Incorporated
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Product Folder Link(s): TMS320DM355
159
PACKAGE OPTION ADDENDUM
www.ti.com
16-Nov-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
(3)
Device Marking
Samples
(4/5)
(6)
DM355SDZCEA216
ACTIVE
NFBGA
ZCE
337
160
RoHS & Green
SNAGCU
Level-3-260C-168 HR
-40 to 100
TMS320
DM355DZCE A216
TMS320DM355CZCE216
ACTIVE
NFBGA
ZCE
337
160
RoHS &
Non-Green
Call TI
Level-3-260C-168 HR
TMS320DM355CZCEA21
ACTIVE
NFBGA
ZCE
337
160
RoHS & Green
SNAGCU
Level-3-260C-168 HR
-40 to 100
TMS320DM355DZCE135
ACTIVE
NFBGA
ZCE
337
160
RoHS & Green
Call TI
Level-3-260C-168 HR
0 to 85
DM355DZCE
135
TMS320
DM355DZCE 135
TMS320DM355DZCE216
ACTIVE
NFBGA
ZCE
337
160
RoHS & Green
Call TI
Level-3-260C-168 HR
0 to 85
DM355DZCE
216
TMS320
DM355DZCE 216
TMS320DM355DZCE270
ACTIVE
NFBGA
ZCE
337
160
RoHS & Green
Call TI
Level-3-260C-168 HR
0 to 85
DM355DZCE
270
TMS320
DM355DZCE 270
TMS320DM355DZCEA21
ACTIVE
NFBGA
ZCE
337
160
RoHS & Green
SNAGCU
Level-3-260C-168 HR
-40 to 100
DM355CZCE
216
TMS320
DM355ZCE
A216
TMS320
DM355CZCE A216
TMS320
DM355DZCE A216
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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