DSP Microcomputer
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
PERFORMANCE FEATURES
SYSTEM INTERFACE FEATURES
Up to 19 ns instruction cycle time, 52 MIPS sustained
performance
Single-cycle instruction execution
Single-cycle context switch
3-bus architecture allows dual operand fetches in every
instruction cycle
Multifunction instructions
Power-down mode featuring low CMOS standby power dissipation with 400 CLKIN cycle recovery from power-down
condition
Low power dissipation in idle mode
16-bit internal DMA port for high-speed access to on-chip
memory (mode selectable)
4M-byte memory interface for storage of data tables and program overlays (mode selectable)
8-bit DMA to byte memory for transparent program and data
memory transfers (mode selectable)
Programmable memory strobe and separate I/O memory
space permits “glueless” system design
Programmable wait state generation
2 double-buffered serial ports with companding hardware
and automatic data buffering
Automatic booting of on-chip program memory from bytewide external memory, for example, EPROM, or through
internal DMA Port
6 external interrupts
13 programmable flag pins provide flexible system signaling
UART emulation through software SPORT reconfiguration
ICE-Port emulator interface supports debugging in final
systems
INTEGRATION FEATURES
ADSP-2100 family code compatible (easy to use algebraic
syntax), with instruction set extensions
Up to 160K bytes of on-chip RAM, configured
Up to 32K words program memory RAM
Up to 32K words data memory RAM
Dual-purpose program memory for both instruction and
data storage
Independent ALU, multiplier/accumulator, and barrel shifter
computational units
2 independent data address generators
Powerful program sequencer provides zero overhead looping conditional instruction execution
Programmable 16-bit interval timer with prescaler
100-lead LQFP and 144-ball BGA
POWER-DOWN
CONTROL
FULL MEMORY MODE
MEMORY
DATA ADDRESS
GENERATORS
DAG1
DAG2
PROGRAM
SEQUENCER
PROGRAM
MEMORY
UP TO
32K ⴛ 24-BIT
PROGRAMMABLE
I/O
AND
FLAGS
DATA
MEMORY
UP TO
32K ⴛ 16-BIT
PROGRAM MEMORY ADDRESS
EXTERNAL
DATA
BUS
DATA MEMORY ADDRESS
BYTE DMA
CONTROLLER
PROGRAM MEMORY DATA
OR
DATA MEMORY DATA
ARITHMETIC UNITS
ALU
MAC
SHIFTER
EXTERNAL
ADDRESS
BUS
EXTERNAL
DATA
BUS
SERIAL PORTS
SPORT0
TIMER
SPORT1
ADSP-2100 BASE
ARCHITECTURE
INTERNAL
DMA
PORT
HOST MODE
Figure 1. Functional Block Diagram
ICE-Port is a trademark of Analog Devices, Inc.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O.Box 9106, Norwood, MA 02062-9106 U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2008 Analog Devices, Inc. All rights reserved.
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
TABLE OF CONTENTS
Performance Features ............................................... 1
Specifications ........................................................ 21
Integration Features ................................................. 1
Operating Conditions ........................................... 21
System Interface Features ........................................... 1
Electrical Characteristics ....................................... 21
Table of Contents ..................................................... 2
Absolute Maximum Ratings ................................... 22
Revision History ...................................................... 2
Package Information ............................................ 22
General Description ................................................. 3
ESD Sensitivity ................................................... 22
Architecture Overview ........................................... 3
Timing Specifications ........................................... 22
Modes Of Operation .............................................. 4
Power Supply Current .......................................... 36
Interrupts ........................................................... 5
Power Dissipation ............................................... 37
Low Power Operation ............................................ 6
Output Drive Currents ......................................... 40
System Interface ................................................... 7
Power-Down Current ........................................... 41
Reset .................................................................. 8
Capacitive Loading – ADSP-2184L, ADSP-2186L ........ 42
Memory Architecture ............................................ 8
Capacitive Loading – ADSP-2185L, ADSP-2187L ........ 42
Bus Request and Bus Grant ................................... 13
Test Conditions .................................................. 43
Flag I/O Pins ..................................................... 13
Environmental Conditions .................................... 43
Instruction Set Description ................................... 14
LQFP Package Pinout ........................................... 44
Development System ........................................... 14
BGA Package Pinout ............................................ 45
Additional Information ........................................ 16
Outline Dimensions ................................................ 46
Pin Descriptions .................................................... 17
Surface Mount Design .......................................... 47
Memory Interface Pins ......................................... 18
Ordering Guide ..................................................... 47
Terminating Unused Pins ..................................... 19
REVISION HISTORY
1/08—Rev. C
This revision of the ADSP-2184L/ADSP-2185L/
ADSP-2186L/ADSP-2187L processor data sheet combines the
ADSP-2184L, ADSP-2185L, ADSP-2186L, and ADSP-2187L.
This version also contains new RoHS compliant packages.
Rev. C |
Page 2 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
GENERAL DESCRIPTION
The ADSP-218xL series consists of four single chip microcomputers optimized for digital signal processing applications. The
functional block diagram for the ADSP-218xL series members
appears in Figure 1 on Page 1. All series members are pin-compatible and are differentiated solely by the amount of on-chip
SRAM. This feature, combined with ADSP-21xx code compatibility, provides a great deal of flexibility in the design decision.
Specific family members are shown in Table 1.
ARCHITECTURE OVERVIEW
Table 1. ADSP-218xL DSP Microcomputer Family
The functional block diagram is an overall block diagram of the
ADSP-218xL series. The processor contains three independent
computational units: the ALU, the multiplier/accumulator
(MAC), and the shifter. The computational units process 16-bit
data directly and have provisions to support multiprecision
computations. The ALU performs a standard set of arithmetic
and logic operations; division primitives are also supported. The
MAC performs single-cycle multiply, multiply/add, and multiply/subtract operations with 40 bits of accumulation. The shifter
performs logical and arithmetic shifts, normalization, denormalization, and derive exponent operations.
Device
ADSP-2184L
ADSP-2185L
ADSP-2186L
ADSP-2187L
Program Memory
(K words)
4
16
8
32
Data Memory
(K words)
4
16
8
32
ADSP-218xL series members combine the ADSP-2100 family
base architecture (three computational units, data address generators, and a program sequencer) with two serial ports, a 16-bit
internal DMA port, a byte DMA port, a programmable timer,
flag I/O, extensive interrupt capabilities, and on-chip program
and data memory.
ADSP-218xL series members integrate up to 160K bytes of onchip memory configured as up to 32K words (24-bit) of program RAM, and up to 32K words (16-bit) of data RAM. Powerdown circuitry is also provided to meet the low power needs of
battery-operated portable equipment. The ADSP-218xL is available in 100-lead LQFP and 144-ball BGA packages.
Fabricated using high-speed, low-power, CMOS processes,
ADSP-218xL series members operate with a 19 ns instruction
cycle time (ADSP-2185L and ADSP-2187L) or a a 25 ns instruction cycle time (ADSP-2184L and ADSP-2186L). Every
instruction can execute in a single processor cycle.
The ADSP-218xL series instruction set provides flexible data
moves and multifunction (one or two data moves with a computation) instructions. Every instruction can be executed in a
single processor cycle. The ADSP-218xL assembly language uses
an algebraic syntax for ease of coding and readability. A comprehensive set of development tools supports program
development.
The shifter can be used to efficiently implement numeric format
control, including multiword and block floating-point
representations.
The internal result (R) bus connects the computational units so
that the output of any unit may be the input of any unit on the
next cycle.
A powerful program sequencer and two dedicated data address
generators ensure efficient delivery of operands to these computational units. The sequencer supports conditional jumps,
subroutine calls, and returns in a single cycle. With internal
loop counters and loop stacks, ADSP-218xL series members
execute looped code with zero overhead; no explicit jump
instructions are required to maintain loops.
• Generate the next program address
Two data address generators (DAGs) provide addresses for
simultaneous dual operand fetches (from data memory and program memory). Each DAG maintains and updates four address
pointers. Whenever the pointer is used to access data (indirect
addressing), it is post-modified by the value of one of four possible modify registers. A length value may be associated with each
pointer to implement automatic modulo addressing for
circular buffers.
• Fetch the next instruction
Five internal buses provide efficient data transfer:
The ADSP-218xL’s flexible architecture and comprehensive
instruction set allow the processor to perform multiple operations in parallel. In one processor cycle, ADSP-218xL series
members can:
• Perform one or two data moves
• Program Memory Address (PMA) Bus
• Update one or two data address pointers
• Program Memory Data (PMD) Bus
• Perform a computational operation
• Data Memory Address (DMA) Bus
This takes place while the processor continues to:
• Data Memory Data (DMD) Bus
• Receive and transmit data through the two serial ports
• Result (R) Bus
• Receive and/or transmit data through the internal
DMA port
• Receive and/or transmit data through the byte DMA port
• Decrement timer
Rev. C |
Page 3 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
The two address buses (PMA and DMA) share a single external
address bus, allowing memory to be expanded off-chip, and the
two data buses (PMD and DMD) share a single external data
bus. Byte memory space and I/O memory space also share the
external buses.
Program memory can store both instructions and data, permitting ADSP-218xL series members to fetch two operands in a
single cycle, one from program memory and one from data
memory. ADSP-218xL series members can fetch an operand
from program memory and the next instruction in the
same cycle.
In lieu of the address and data bus for external memory connection, ADSP-218xL series members can be configured for 16-bit
Internal DMA port (IDMA port) connection to external systems. The IDMA port is made up of 16 data/address pins and
five control pins. The IDMA port provides transparent, direct
access to the DSP’s on-chip program and data RAM.
An interface to low cost, byte-wide memory is provided by the
Byte DMA port (BDMA port). The BDMA port is bidirectional
and can directly address up to four megabytes of external RAM
or ROM for off-chip storage of program overlays or data tables.
The byte memory and I/O memory space interface supports
slow memories and I/O memory-mapped peripherals with programmable wait state generation. External devices can gain
control of external buses with bus request/grant signals (BR,
BGH, and BG). One execution mode (Go Mode) allows the
ADSP-218xL to continue running from on-chip memory. Normal execution mode requires the processor to halt while buses
are granted.
ADSP-218xL series members can respond to eleven interrupts.
There can be up to six external interrupts (one edge-sensitive,
two level-sensitive, and three configurable) and seven internal
interrupts generated by the timer, the serial ports (SPORT), the
BDMA port, and the power-down circuitry. There is also a master RESET signal. The two serial ports provide a complete
synchronous serial interface with optional companding in hardware and a wide variety of framed or frameless data transmit
and receive modes of operation. Each serial port can generate an
internal programmable serial clock or accept an external
serial clock.
ADSP-218xL series members provide up to 13 general-purpose
flag pins. The data input and output pins on SPORT1 can be
alternatively configured as an input flag and an output flag. In
addition, eight flags are programmable as inputs or outputs, and
three flags are always outputs.
A programmable interval timer generates periodic interrupts. A
16-bit count register (TCOUNT) decrements every n processor
cycle, where n is a scaling value stored in an 8-bit register
(TSCALE). When the value of the count register reaches zero,
an interrupt is generated and the count register is reloaded from
a 16-bit period register (TPERIOD).
Rev. C |
Page 4 of 48 |
Serial Ports
ADSP-218xL series members incorporate two complete synchronous serial ports (SPORT0 and SPORT1) for serial
communications and multiprocessor communication.
Following is a brief list of the capabilities of the ADSP-218xL
SPORTs. For additional information on Serial Ports, refer to the
ADSP-218x DSP Hardware Reference.
• SPORTs are bidirectional and have a separate, doublebuffered transmit and receive section.
• SPORTs can use an external serial clock or generate their
own serial clock internally.
• SPORTs have independent framing for the receive and
transmit sections. Sections run in a frameless mode or with
frame synchronization signals internally or externally generated. Frame sync signals are active high or inverted, with
either of two pulse widths and timings.
• SPORTs support serial data word lengths from 3 bits to
16 bits and provide optional A-law and μ-law companding,
according to CCITT recommendation G.711.
• SPORT receive and transmit sections can generate unique
interrupts on completing a data word transfer.
• SPORTs can receive and transmit an entire circular buffer
of data with only one overhead cycle per data word. An
interrupt is generated after a data buffer transfer.
• SPORT0 has a multichannel interface to selectively receive
and transmit a 24-word or 32-word, time-division multiplexed, serial bitstream.
• SPORT1 can be configured to have two external interrupts
(IRQ0 and IRQ1) and the FI and FO signals. The internally
generated serial clock may still be used in this
configuration.
MODES OF OPERATION
The ADSP-218xL series modes of operation appear in Table 2.
Only the ADSP-2187L provides Mode D operation
Setting Memory Mode
Memory Mode selection for the ADSP-218xL series is made
during chip reset through the use of the Mode C pin. This pin is
multiplexed with the DSP’s PF2 pin, so care must be taken in
how the mode selection is made. The two methods for selecting
the value of Mode C are active and passive.
Passive Configuration
Passive Configuration involves the use of a pull-up or pulldown resistor connected to the Mode C pin. To minimize power
consumption, or if the PF2 pin is to be used as an output in the
DSP application, a weak pull-up or pull-down resistance, on the
order of 10 kΩ, can be used. This value should be sufficient to
pull the pin to the desired level and still allow the pin to operate
as a programmable flag output without undue strain on the processor’s output driver. For minimum power consumption
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Table 2. Modes of Operation
1
2
Mode D1
X
Mode C
0
Mode B
0
Mode A
0
X
0
1
0
0
1
0
0
0
1
0
1
1
1
0
0
1
1
0
1
Booting Method
BDMA feature is used to load the first 32 program memory words from the byte memory
space. Program execution is held off until all 32 words have been loaded. Chip is
configured in Full Memory Mode.2
No automatic boot operations occur. Program execution starts at external memory
location 0. Chip is configured in Full Memory Mode. BDMA can still be used, but the
processor does not automatically use or wait for these operations.
BDMA feature is used to load the first 32 program memory words from the byte memory
space. Program execution is held off until all 32 words have been loaded. Chip is
configured in Host Mode. IACK has active pull-down. (Requires additional hardware.)
IDMA feature is used to load any internal memory as desired. Program execution is held
off until the host writes to internal program memory location 0. Chip is configured in
Host Mode. IACK has active pull-down.2
BDMA feature is used to load the first 32 program memory words from the byte memory
space. Program execution is held off until all 32 words have been loaded. Chip is
configured in Host Mode; IACK requires external pull-down. (Requires additional
hardware.)
IDMA feature is used to load any internal memory as desired. Program execution is held
off until the host writes to internal program memory location 0. Chip is configured in
Host Mode. IACK requires external pull-down.2
Mode D applies to the ADSP-2187L processor only.
Considered as standard operating settings. Using these configurations allows for easier design and better memory management.
during power-down, reconfigure PF2 to be an input, as the pullup or pull-down resistance will hold the pin in a known state,
and will not switch.
Active Configuration
Active Configuration involves the use of a three-statable external driver connected to the Mode C pin. A driver’s output
enable should be connected to the DSP’s RESET signal such that
it only drives the PF2 pin when RESET is active (low). When
RESET is deasserted, the driver should be three-state, thus
allowing full use of the PF2 pin as either an input or output. To
minimize power consumption during power-down, configure
the programmable flag as an output when connected to a threestated buffer. This ensures that the pin will be held at a constant
level, and will not oscillate should the three-state driver’s level
hover around the logic switching point.
IDMA ACK Configuration (ADSP-2187L Only)
Mode D = 0 and in Host Mode: IACK is an active, driven signal
and cannot be “wire-OR’ed.” Mode D = 1 and in Host Mode:
IACK is an open drain and requires an external pull-down, but
multiple IACK pins can be “wire-OR’ed” together.
INTERRUPTS
The interrupt controller allows the processor to respond to the
eleven possible interrupts and reset with minimum overhead.
ADSP-218xL series members provide four dedicated external
interrupt input pins: IRQ2, IRQL0, IRQL1, and IRQE (shared
with the PF7–4 pins). In addition, SPORT1 may be reconfigured for IRQ0, IRQ1, FI, and FO, for a total of six external
interrupts. The ADSP-218xL also supports internal interrupts
Rev. C |
Page 5 of 48 |
from the timer, the byte DMA port, the two serial ports, software, and the power-down control circuit. The interrupt levels
are internally prioritized and individually maskable (except
power-down and reset). The IRQ2, IRQ0, and IRQ1 input pins
can be programmed to be either level- or edge-sensitive. IRQL0
and IRQL1 are level-sensitive and IRQE is edge-sensitive. The
priorities and vector addresses of all interrupts are shown in
Table 3.
Table 3. Interrupt Priority and Interrupt Vector Addresses
Source Of Interrupt
RESET (or Power-Up with PUCR = 1)
Power-Down (Nonmaskable)
IRQ2
IRQL1
IRQL0
SPORT0 Transmit
SPORT0 Receive
IRQE
BDMA Interrupt
SPORT1 Transmit or IRQ1
SPORT1 Receive or IRQ0
Timer
Interrupt Vector Address
(Hex)
0x0000 (highest priority)
0x002C
0x0004
0x0008
0x000C
0x0010
0x0014
0x0018
0x001C
0x0020
0x0024
0x0028 (lowest priority)
Interrupt routines can either be nested with higher priority
interrupts taking precedence or processed sequentially. Interrupts can be masked or unmasked with the IMASK register.
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Individual interrupt requests are logically AND’ed with the bits
in IMASK; the highest priority unmasked interrupt is then
selected. The power-down interrupt is nonmaskable.
ADSP-218xL series members mask all interrupts for one
instruction cycle following the execution of an instruction that
modifies the IMASK register. This does not affect serial port
autobuffering or DMA transfers.
The interrupt control register, ICNTL, controls interrupt nesting and defines the IRQ0, IRQ1, and IRQ2 external interrupts to
be either edge- or level-sensitive. The IRQE pin is an external
edge-sensitive interrupt and can be forced and cleared. The
IRQL0 and IRQL1 pins are external level sensitive interrupts.
The IFC register is a write-only register used to force and clear
interrupts. On-chip stacks preserve the processor status and are
automatically maintained during interrupt handling. The stacks
are 12 levels deep to allow interrupt, loop, and subroutine nesting. The following instructions allow global enable or disable
servicing of the interrupts (including power-down), regardless
of the state of IMASK:
ENA INTS;
DIS INTS;
Disabling the interrupts does not affect serial port autobuffering
or DMA. When the processor is reset, interrupt servicing
is enabled.
LOW POWER OPERATION
• Support for crystal operation includes disabling the oscillator to save power (the processor automatically waits
approximately 4096 CLKIN cycles for the crystal oscillator
to start or stabilize), and letting the oscillator run to allow
400 CLKIN cycle start-up.
• Power-down is initiated by either the power-down pin
(PWD) or the software power-down force bit. Interrupt
support allows an unlimited number of instructions to be
executed before optionally powering down. The powerdown interrupt also can be used as a nonmaskable, edgesensitive interrupt.
• Context clear/save control allows the processor to continue
where it left off or start with a clean context when leaving
the power-down state.
• The RESET pin also can be used to terminate power-down.
• Power-down acknowledge pin (PWDACK) indicates when
the processor has entered power-down.
Idle
When the ADSP-218xL is in the Idle Mode, the processor waits
indefinitely in a low-power state until an interrupt occurs.
When an unmasked interrupt occurs, it is serviced; execution
then continues with the instruction following the IDLE instruction. In Idle Mode IDMA, BDMA, and autobuffer cycle steals
still occur.
Slow Idle
ADSP-218xL series members have three low-power modes that
significantly reduce the power dissipation when the device operates under standby conditions. These modes are:
• Idle
The IDLE instruction is enhanced on ADSP-218xL series members to let the processor’s internal clock signal be slowed, further
reducing power consumption. The reduced clock frequency, a
programmable fraction of the normal clock rate, is specified by a
selectable divisor given in the IDLE instruction.
• Slow Idle
The format of the instruction is:
• Power-Down
IDLE (n);
The CLKOUT pin may also be disabled to reduce external
power dissipation.
Power-Down
ADSP-218xL series members have a low-power feature that lets
the processor enter a very low-power dormant state through
hardware or software control. Following is a brief list of powerdown features. Refer to the ADSP-218x DSP Hardware Reference, “System Interface” chapter, for detailed information about
the power-down feature.
• Quick recovery from power-down. The processor begins
executing instructions in as few as 400 CLKIN cycles.
• Support for an externally generated TTL or CMOS processor clock. The external clock can continue running during
power-down without affecting the lowest power rating and
400 CLKIN cycle recovery.
Rev. C |
Page 6 of 48 |
where n = 16, 32, 64, or 128. This instruction keeps the processor fully functional, but operating at the slower clock rate. While
it is in this state, the processor’s other internal clock signals,
such as SCLK, CLKOUT, and timer clock, are reduced by the
same ratio. The default form of the instruction, when no clock
divisor is given, is the standard IDLE instruction.
When the IDLE (n) instruction is used, it effectively slows down
the processor’s internal clock and thus its response time to
incoming interrupts. The one-cycle response time of the standard idle state is increased by n, the clock divisor. When an
enabled interrupt is received, ADSP-218xL series members
remain in the idle state for up to a maximum of n processor
cycles (n = 16, 32, 64, or 128) before resuming
normal operation.
When the IDLE (n) instruction is used in systems that have an
externally generated serial clock (SCLK), the serial clock rate
may be faster than the processor’s reduced internal clock rate.
Under these conditions, interrupts must not be generated at a
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
faster rate than can be serviced, due to the additional time the
processor takes to come out of the idle state (a maximum of n
processor cycles).
power-down state. For additional information, refer to the
ADSP-218x DSP Hardware Reference, for detailed information
on this power-down feature.
SYSTEM INTERFACE
If an external clock is used, it should be a TTL-compatible signal
running at half the instruction rate. The signal is connected to
the processor’s CLKIN input. When an external clock is used,
the XTAL pin must be left unconnected.
Figure 2 shows typical basic system configurations with the
ADSP-218xL series, two serial devices, a byte-wide EPROM,
and optional external program and data overlay memories
(mode-selectable). Programmable wait state generation allows
the processor to connect easily to slow peripheral devices.
ADSP-218xL series members also provide four external interrupts and two serial ports or six external interrupts and one
serial port. Host Memory Mode allows access to the full external
data bus, but limits addressing to a single address bit (A0).
Through the use of external hardware, additional system
peripherals can be added in this mode to generate and latch
address signals.
ADSP-218xL series members use an input clock with a frequency equal to half the instruction rate; a 40 MHz input clock
yields a 12.5 ns processor cycle (which is equivalent to
80 MHz). Normally, instructions are executed in a single processor cycle. All device timing is relative to the internal
instruction clock rate, which is indicated by the CLKOUT signal
when enabled.
Because ADSP-218xL series members include an on-chip oscillator circuit, an external crystal may be used. The crystal should
be connected across the CLKIN and XTAL pins, with two
capacitors connected as shown in Figure 3. Capacitor values are
dependent on crystal type and should be specified by the crystal
manufacturer. A parallel-resonant, fundamental frequency,
microprocessor-grade crystal should be used. To provide an
adequate feedback path around the internal amplifier circuit,
place a resistor in parallel with the circuit, as shown in Figure 3.
Clock Signals
ADSP-218xL series members can be clocked by either a crystal
or a TTL-compatible clock signal.
The CLKIN input cannot be halted, changed during operation,
nor operated below the specified frequency during normal operation. The only exception is while the processor is in the
A clock output (CLKOUT) signal is generated by the processor
at the processor’s cycle rate. This can be enabled and disabled by
the CLKODIS bit in the SPORT0 Autobuffer Control Register.
FULL MEMORY MODE
1/2 ⴛ CLOCK
OR
CRYSTAL
ADSP-218xL
SERIAL
DEVICE
1/2 ⴛ CLOCK
OR
CRYSTAL
CLKIN
XTAL
ADDR13–0 14
FL0–2
SERIAL
DEVICE
HOST MEMORY MODE
ADSP-218xL
A13–0
D23–16
IRQ2/PF7
IRQE/PF4 DATA23–0
IRQL0/PF5
BMS
IRQL1/PF6
WR
MODE D/PF3
RD
MODE C/PF2
MODE A/PF0
MODE B/PF1
IOMS
SPORT1
SCLK1
RFS1 OR IRQ0
TFS1 OR IRQ1
DT1 OR FO
PMS
DR1 OR FI
DMS
CMS
SPORT0
SCLK0
BR
RFS0
BG
TFS0
BGH
DT0
PWD
DR0
PW DACK
24
CLK IN
XTAL
A0–A21
FL0–2
BYTE
MEMORY
D15–8
DATA
CS
ADDR
DATA
CS
A13–0
er
int DATA
D23–0
em
yst
s
ert
Ins
d
ace
fADDR
I/O SPACE
(PERIPHERALS)
2048 LOCATIONS
ia
m
gra
1
IRQ2/PF7
IRQE/PF4
DATA23–8
IRQL0/PF5
IRQL1/PF6
BMS
MODE D/PF3
WR
MODE C/PF2
RD
MODE A/PF0
MODE B/PF1
A10–0
D23–8
A0
re
he
SPORT1
SCLK1
RFS1 OR IRQ0
TFS1 OR IRQ1
DT1 OR FO
DR1 OR FI
SERIAL
DEVICE
OVERLAY
MEMORY
TWO 8K
PM SEGMEN TS
TWO 8K
DM SEGMEN TS
SPORT0
SCLK0
RFS0
TFS0
DT0
DR0
SERIAL
DEVICE
SYSTEM
INTERFACE
OR
µCONTROLLER
16
IOMS
PMS
DMS
CMS
BR
BG
BGH
PWD
IDMA PORT
PW
DACK
IRD/D6
IWR/D7
IS/D4
IAL/D5
IACK/D3
IAD15-0
NOTE: MODE D APPLIES TO THE ADSP-2187L P ROCES SOR ON LY
Figure 2. Basic System Interface
Rev. C |
Page 7 of 48 |
January 2008
16
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
sequence is performed. The first instruction is fetched from onchip program memory location 0x0000 once boot loading
completes.
1M⍀
MEMORY ARCHITECTURE
XTAL
CLKIN
The ADSP-218xL series provides a variety of memory and
peripheral interface options. The key functional groups are Program Memory, Data Memory, Byte Memory, and I/O. Refer to
Figure 4 through Figure 7 for PM and DM memory allocations
in the ADSP-218xL series.
CLKOUT
DSP
Figure 3. External Crystal Connections
Program Memory
Program Memory (Full Memory Mode) is a 24-bit-wide space
for storing both instruction opcodes and data. The member
DSPs of this series have up to 32K words of Program Memory
RAM on chip, and the capability of accessing up to two 8K
external memory overlay spaces, using the external data bus.
RESET
The RESET signal initiates a master reset of the ADSP-218xL.
The RESET signal must be asserted during the power-up
sequence to assure proper initialization. RESET during initial
power-up must be held long enough to allow the internal clock
to stabilize. If RESET is activated any time after power-up, the
clock continues to run and does not require stabilization time.
Program Memory (Host Mode) allows access to all internal
memory. External overlay access is limited by a single external
address line (A0). External program execution is not available in
Host Mode due to a restricted data bus that is only 16 bits wide.
The power-up sequence is defined as the total time required for
the crystal oscillator circuit to stabilize after a valid VDD is
applied to the processor, and for the internal phase-locked loop
(PLL) to lock onto the specific crystal frequency. A minimum of
2000 CLKIN cycles ensures that the PLL has locked, but does
not include the crystal oscillator start-up time. During this
power-up sequence, the RESET signal should be held low. On
any subsequent resets, the RESET signal must meet the minimum pulse width specification (tRSP).
Data Memory
Data Memory (Full Memory Mode) is a 16-bit-wide space used
for the storage of data variables and for memory-mapped control registers. The ADSP-218xL series has up to 32K words of
Data Memory RAM on-chip. Part of this space is used by 32
memory-mapped registers. Support also exists for up to two 8K
external memory overlay spaces through the external data bus.
The RESET input contains some hysteresis; however, if an RC
circuit is used to generate the RESET signal, the use of an external Schmitt trigger is recommended.
All internal accesses complete in one cycle. Accesses to external
memory are timed using the wait states specified by the DWAIT
register.
The master reset sets all internal stack pointers to the empty
stack condition, masks all interrupts, and clears the MSTAT
register. When RESET is released, if there is no pending bus
request and the chip is configured for booting, the boot-loading
Data Memory (Host Mode) allows access to all internal memory. External overlay access is limited by a single external
address line (A0).
PROGRAM MEMORY
MODEB = 1
0x3FFF
PROGRAM MEMORY
MODEB = 0
0x3FFF
0x3FFF
PM OVERLAY 1,2
(EXTERNAL PM)
RESERVED
PM OVERLAY 0
(RESERVED)
0x2000
0x1FFF
0x2000
0x1FFF
32 MEMORY-MAPPED
CONTROL REGISTERS
0x3FE0
0x3FDF
0x3000
0x2FFF
INTERNAL DM
DM OVERLAY 1,2
(EXTERNAL DM)
0x1000
0x0FFF
DM OVERLAY 0
(RESERVED)
INTERNAL PM
0x0000
0x0000
0x0000
Figure 4. ADSP-2184 Memory Architecture
Rev. C |
4064 RESERVED
WORDS
0x2000
0x1FFF
RESERVED
EXTERNAL PM
DATA MEMORY
Page 8 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
PROGRAM MEMORY
MODEB = 1
0x3FFF
PROGRAM MEMORY
MODEB = 0
0x3FFF
0x3FFF
PM OVERLAY 1,2
(EXTERNAL PM)
RESERVED
DATA MEMORY
32 MEMORY-MAPPED
CONTROL REGISTERS
0x3FE0
0x3FDF
PM OVERLAY 0
(INTERNAL PM)
0x2000
0x1FFF
0x2000
0x1FFF
EXTERNAL PM
INTERNAL DM
0x2000
0x1FFF
DM OVERLAY 1,2
(EXTERNAL DM)
INTERNAL PM
DM OVERLAY 0
(INTERNAL DM)
0x0000
0x0000
0x0000
Figure 5. ADSP-2185 Memory Architecture
PROGRAM MEMORY
MODEB = 1
0x3FFF
PROGRAM MEMORY
MODEB = 0
0x3FFF
0x3FFF
PM OVERLAY 1,2
(EXTERNAL PM)
RESERVED
DATA MEMORY
32 MEMORY-MAPPED
CONTROL REGISTERS
0x3FE0
0x3FDF
PM OVERLAY 0
(RESERVED)
0x2000
0x1FFF
0x2000
0x1FFF
EXTERNAL PM
INTERNAL DM
0x2000
0x1FFF
DM OVERLAY 1,2
(EXTERNAL DM)
INTERNAL PM
DM OVERLAY 0
(RESERVED)
0x0000
0x0000
0x0000
Figure 6. ADSP-2186 Memory Architecture
PROGRAM MEMORY
MODEB = 1
0x3FFF
PROGRAM MEMORY
MODEB = 0
0x3FFF
0x3FFF
PM OVERLAY 1,2
(EXTERNAL PM)
RESERVED
DATA MEMORY
32 MEMORY-MAPPED
CONTROL REGISTERS
0x3FE0
0x3FDF
PM OVERLAY 0,4,5
(INTERNAL PM)
0x2000
0x1FFF
0x2000
0x1FFF
EXTERNAL PM
INTERNAL DM
0x2000
0x1FFF
DM OVERLAY 1,2
(EXTERNAL DM)
INTERNAL PM
DM OVERLAY 0,4,5
(INTERNAL DM)
0x0000
0x0000
0x0000
Figure 7. ADSP-2187 Memory Architecture
Rev. C |
Page 9 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Table 4. PMOVLAY Bits
Processor
ADSP-2184L
ADSP-2185L
ADSP-2186L
ADSP-2187L
All Processors
All Processors
PMOVLAY
No internal overlay
region
0
No internal overlay
region
0, 4, 5
1
2
Memory
Not Applicable
A13
Not applicable
A12–0
Not applicable
Internal overlay
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
Internal overlay
External overlay 1
External overlay 2
Not applicable
0
1
Not applicable
13 LSBs of address between 0x2000 and 0x3FFF
13 LSBs of address between 0x2000 and 0x3FFF
Table 5. DMOVLAY Bits
Processor
ADSP-2184L
ADSP-2185L
ADSP-2186L
ADSP-2187L
All Processors
All Processors
DMOVLAY
No internal overlay
region
0
No internal overlay
region
0, 4, 5
1
2
Memory
Not applicable
A13
Not applicable
A12–0
Not applicable
Internal overlay
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
Internal overlay
External overlay 1
External overlay 2
Not applicable
0
1
Not applicable
13 LSBs of address between 0x0000 and 0x1FFF
13 LSBs of address between 0x0000 and 0x1FFF
I/O Space (Full Memory Mode)
ADSP-218xL series members support an additional external
memory space called I/O space. This space is designed to support simple connections to peripherals (such as data converters
and external registers) or to bus interface ASIC data registers.
I/O space supports 2048 locations of 16-bit wide data. The lower
eleven bits of the external address bus are used; the upper three
bits are undefined.
Two instructions were added to the core ADSP-2100 family
instruction set to read from and write to I/O memory space. The
I/O space also has four dedicated 3-bit wait state registers,
IOWAIT0–3 as shown in Figure 8, which specify up to seven
wait states to be automatically generated for each of four
regions. The wait states act on address ranges, as shown in
Table 6.
Note: In Full Memory Mode, all 2048 locations of I/O space are
directly addressable. In Host Memory Mode, only address pin
A0 is available; therefore, additional logic is required externally
to achieve complete addressability of the 2048 I/O space
locations.
Table 6. Wait States
Address Range
0x000–0x1FF
0x200–0x3FF
0x400–0x5FF
0x600–0x7FF
Wait State Register
IOWAIT0
IOWAIT1
IOWAIT2
IOWAIT3
WAIT STATE CONTROL
15 14 13 12 11 10
0
1
1
DWAIT
1
1
1
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
IOWAIT3
IOWAIT2
IOWAIT1
DM(0x3FFE)
IOWAIT0
RESERVED
Figure 8. Wait State Control Register
Composite Memory Select
ADSP-218xL series members have a programmable memory
select signal that is useful for generating memory select signals
for memories mapped to more than one space. The CMS signal
is generated to have the same timing as each of the individual
memory select signals (PMS, DMS, BMS, IOMS) but can combine their functionality. Each bit in the CMSSEL register, when
set, causes the CMS signal to be asserted when the selected
memory select is asserted. For example, to use a 32K word
memory to act as both program and data memory, set the PMS
and DMS bits in the CMSSEL register and use the CMS pin to
drive the chip select of the memory, and use either DMS or PMS
as the additional address bit.
The CMS pin functions like the other memory select signals
with the same timing and bus request logic. A 1 in the enable bit
causes the assertion of the CMS signal at the same time as the
selected memory select signal. All enable bits default to 1 at
reset, except the BMS bit.
Rev. C
|
Page 10 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
See Figure 9 and Figure 10 for illustration of the programmable
flag and composite control register and the system
control register.
PROGRAMMABLE FLAG AND COMPOSITE
SELECT CONTROL
15 14 13 12 11 10
0
1
1
1
1
0
BMWAIT
9
8
7
6
5
4
3
2
1
0
1
1
0
0
0
0
0
0
0
0
CMSSEL
0 = DISABLE CMS
1 = ENABLE CMS
RESERVED
Byte Memory DMA (BDMA, Full Memory Mode)
The byte memory DMA controller (Figure 11) allows loading
and storing of program instructions and data using the byte
memory space. The BDMA circuit is able to access the byte
memory space while the processor is operating normally and
steals only one DSP cycle per 8-, 16-, or 24-bit word transferred.
DM(0x3FE6)
BDMA CONTROL
PFTYPE
0 = INPUT
1 = OUTPUT
15 14 13 12 11 10
0
0
0
0
0
0
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
1
0
0
0
DM (0x3FE3)
(WHERE BIT: 11-IOM, 10-BM, 9-DM, 8-PM)
BMPAGE
Figure 9. Programmable Flag and Composite Control Register
BDMA
OVERLAY
BITS
(SEE TABLE 12)
SYSTEM CONTROL
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
R ESERVED
SET T O 0
1
0
RESERVED,ALW AYS
SET TO 0
SPO RT0 ENABL E
0 = DISABL E
1 = ENABL E
SPORT 1 ENABLE
0 = DISABLE
1 = ENABLE
Figure 11. BDMA Control Register
DM(0x3F FF)
PW AIT
PRO GRAM MEMOR Y
W AIT ST ATES
DISABLE BMS
0 = ENABL E BMS
1 = DISAB LE BMS
BTYPE
BDIR
0 = LOAD FROM BM
1 = STORE TO BM
BCR
0 = RUN DURING BDMA
1 = HALT DURING BDMA
The BDMA circuit supports four different data formats that are
selected by the BTYPE register field. The appropriate number of
8-bit accesses are done from the byte memory space to build the
word size selected. Table 7 shows the data formats supported by
the BDMA circuit.
Table 7. Data Formats
SPO RT1 C ONF IGURE
0 = FI, FO , IRQ0, IRQ1, SCLK
1 = SPORT1
BTYPE
00
01
10
11
N OTE: RESERVED BITS ARE SHO WN O N A GRAY FIELD . THESE B ITS
SHOUL D ALW AYS BE WR ITTEN W ITH Z EROS.
Figure 10. System Control Register
Byte Memory Select
The ADSP-218xL’s BMS disable feature combined with the
CMS pin allows use of multiple memories in the byte memory
space. For example, an EPROM could be attached to the BMS
select, and a flash memory could be connected to CMS. Because
at reset BMS is enabled, the EPROM would be used for booting.
After booting, software could disable BMS and set the CMS signal to respond to BMS, enabling the flash memory.
Byte Memory
The byte memory space is a bidirectional, 8-bit-wide,
external memory space used to store programs and data. Byte
memory is accessed using the BDMA feature. The byte memory
space consists of 256 pages, each of which is 16K ⴛ 8 bits.
The byte memory space on the ADSP-218xL series supports
read and write operations as well as four different data formats.
The byte memory uses data bits 15–8 for data. The byte memory uses data bits 23–16 and address bits 13–0 to create a 22-bit
address. This allows up to a 4 megabit ⴛ 8 (32 megabit) ROM
or RAM to be used without glue logic. All byte memory accesses
are timed by the BMWAIT register.
Rev. C |
Internal Memory
Space
Program memory
Data memory
Data memory
Data memory
Word Size
24
16
8
8
Alignment
Full word
Full word
MSBs
LSBs
Unused bits in the 8-bit data memory formats are filled with 0s.
The BIAD register field is used to specify the starting address for
the on-chip memory involved with the transfer. The 14-bit
BEAD register specifies the starting address for the external byte
memory space. The 8-bit BMPAGE register specifies the starting page for the external byte memory space. The BDIR register
field selects the direction of the transfer. Finally, the 14-bit
BWCOUNT register specifies the number of DSP words to
transfer and initiates the BDMA circuit transfers.
BDMA accesses can cross page boundaries during sequential
addressing. A BDMA interrupt is generated on the completion
of the number of transfers specified by the BWCOUNT register.
The BWCOUNT register is updated after each transfer so it can
be used to check the status of the transfers. When it reaches
zero, the transfers have finished and a BDMA interrupt is generated. The BMPAGE and BEAD registers must not be accessed
by the DSP during BDMA operations. The source or destination
of a BDMA transfer is always on-chip program or data memory.
When the BWCOUNT register is written with a nonzero value
the BDMA circuit starts executing byte memory accesses with
wait states set by BMWAIT. These accesses continue until the
count reaches zero. When enough accesses have occurred to
Page 11 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
create a destination word, it is transferred to or from on-chip
memory. The transfer takes one DSP cycle. DSP accesses to
external memory have priority over BDMA byte
memory accesses.
The BDMA Context Reset bit (BCR) controls whether the processor is held off while the BDMA accesses are occurring.
Setting the BCR bit to 0 allows the processor to continue operations. Setting the BCR bit to 1 causes the processor to stop
execution while the BDMA accesses are occurring, to clear the
context of the processor, and start execution at address 0 when
the BDMA accesses have completed.
The BDMA overlay bits specify the OVLAY memory blocks to
be accessed for internal memory. Set these bits as indicated in
Figure 11.
Note: BDMA cannot access external overlay memory regions 1
and 2.
The BMWAIT field, which has 3 bits on ADSP-218xL series
members, allows selection of up to 7 wait states for BDMA
transfers.
Internal Memory DMA Port (IDMA Port; Host Memory
Mode)
The IDMA Port provides an efficient means of communication
between a host system and ADSP-218xL series members. The
port is used to access the on-chip program memory and data
memory of the DSP with only one DSP cycle per word overhead. The IDMA port cannot, however, be used to write to the
DSP’s memory-mapped control registers. A typical IDMA
transfer process is shown as follows:
1. Host starts IDMA transfer.
2. Host checks IACK control line to see if the DSP is busy.
3. Host uses IS and IAL control lines to latch either the DMA
starting address (IDMAA) or the PM/DM OVLAY selection into the DSP’s IDMA control registers. If Bit 15 = 1,
the values of Bits 7–0 represent the IDMA overlay; Bits
14–8 must be set to 0. If Bit 15 = 0, the value of Bits 13–0
represent the starting address of internal memory to be
accessed and Bit 14 reflects PM or DM for access. Set
IDDMOVLAY and IDPMOVLAY bits in the IDMA overlay register as indicted in Table 8.
4. Host uses IS and IRD (or IWR) to read (or write) DSP
internal memory (PM or DM).
5. Host checks IACK line to see if the DSP has completed the
previous IDMA operation.
6. Host ends IDMA transfer.
Table 8. IDMA/BDMA Overlay Bits
Processor
ADSP-2184L
ADSP-2185L
ADSP-2186L
ADSP-2187L
IDMA/BDMA
PMOVLAY
0
0
0
0, 4, 5
IDMA/BDMA
DMOVLAY
0
0
0
0, 4, 5
The IDMA port has a 16-bit multiplexed address and data bus
and supports 24-bit program memory. The IDMA port is completely asynchronous and can be written while the ADSP-218xL
is operating at full speed.
The DSP memory address is latched and then automatically
incremented after each IDMA transaction. An external device
can therefore access a block of sequentially addressed memory
by specifying only the starting address of the block. This
increases throughput as the address does not have to be sent for
each memory access.
IDMA port access occurs in two phases. The first is the IDMA
Address Latch cycle. When the acknowledge is asserted, a 14-bit
address and 1-bit destination type can be driven onto the bus by
an external device. The address specifies an on-chip memory
location, the destination type specifies whether it is a DM or PM
access. The falling edge of the IDMA address latch signal (IAL)
or the missing edge of the IDMA select signal (IS) latches this
value into the IDMAA register.
Once the address is stored, data can be read from, or written to,
the ADSP-218xL’s on-chip memory. Asserting the select line
(IS) and the appropriate read or write line (IRD and IWR
respectively) signals the ADSP-218xL that a particular transaction is required. In either case, there is a one-processor-cycle
delay for synchronization. The memory access consumes one
additional processor cycle.
Once an access has occurred, the latched address is automatically incremented, and another access can occur.
Through the IDMAA register, the DSP can also specify the
starting address and data format for DMA operation.
Asserting the IDMA port select (IS) and address latch enable
(IAL) directs the ADSP-218xL to write the address onto the
IAD14–0 bus into the IDMA Control Register (Figure 12). If Bit
15 is set to 0, IDMA latches the address. If Bit 15 is set to 1,
IDMA latches into the OVLAY register. This register, also
shown in Figure 12, is memory-mapped at address DM
(0x3FE0). Note that the latched address (IDMAA) cannot be
read back by the host. The IDMA Overlay register applies to
The ADSP-2187L processor only.
When Bit 14 in 0x3FE7 is set to zero, short reads use the timing
shown in Figure 26 on Page 34. When Bit 14 in 0x3FE7 is set to
1, timing in Figure 27 on Page 35 applies for short reads in Short
Read Only Mode. Set IDDMOVLAY and IDPMOVLAY bits in
the IDMA overlay register as indicated in Table 8. Refer to the
ADSP-218x DSP Hardware Reference for additional details.
Rev. C
|
Page 12 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Note: In Full Memory Mode, all locations of 4M-byte memory
space are directly addressable. In Host Memory Mode, only
address pin A0 is available, requiring additional external logic to
provide address information for the byte.
ID M A O VE R LA Y
15 14 13 12 11 10
0
0
0
0
0
0
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
R E SE R V ED S E T TO 0
ID D M OV LA Y
R E SE R V ED S E T TO 0
SH O R T R E A D
ON LY
0 = D IS A B LE
1 = E N A B LE
D M (0x3FE 7)
ID P M OV LA Y
can load as much on-chip memory as desired. Program execution is held off until the host writes to on-chip program memory
location 0.
BUS REQUEST AND BUS GRANT
ADSP-218xL series members can relinquish control of the data
and address buses to an external device. When the external
device requires access to memory, it asserts the Bus Request
(BR) signal. If the ADSP-218xL is not performing an external
memory access, it responds to the active BR input in the following processor cycle by:
• Three-stating the data and address buses and the PMS,
DMS, BMS, CMS, IOMS, RD, WR output drivers,
ID M A C O N T R O L (U = U N D E FIN ED A T R ES E T)
15 14 13 12 11 10
0
U
U
U
U
U
9
8
7
6
5
4
3
2
1
0
U
U
U
U
U
U
U
U
U
U
• Asserting the bus grant (BG) signal, and
D M (0x3FE 0)
ID MA A A D D R ES S
If Go Mode is enabled, the ADSP-218xL will not halt program
execution until it encounters an instruction that requires an
external memory access.
ID M A D D ES TIN A T ION M EM O R Y
TY PE
R E SE R V ED S E T TO 0
0 = PM
1 = DM
N O TE: R ES E R V ED B ITS A R E S H OW N ON A G R A Y F IE LD . T H ES E
B ITS S H O U LD A L W A Y S B E W R ITTE N W ITH ZE R OS .
Figure 12. IDMA OVLAY/Control Registers
Bootstrap Loading (Booting)
ADSP-218xL series members have two mechanisms to allow
automatic loading of the internal program memory after reset.
The method for booting is controlled by the Mode A, Mode B,
and Mode C configuration bits.
When the mode pins specify BDMA booting, the ADSP-218xL
initiates a BDMA boot sequence when reset is released.
The BDMA interface is set up during reset to the following
defaults when BDMA booting is specified: the BDIR, BMPAGE,
BIAD, and BEAD registers are set to 0, the BTYPE register is set
to 0 to specify program memory 24-bit words, and the
BWCOUNT register is set to 32. This causes 32 words of onchip program memory to be loaded from byte memory. These
32 words are used to set up the BDMA to load in the remaining
program code. The BCR bit is also set to 1, which causes program execution to be held off until all 32 words are loaded into
on-chip program memory. Execution then begins at address 0.
The ADSP-2100 Family development software (Revision 5.02
and later) fully supports the BDMA booting feature and can
generate byte memory space-compatible boot code.
The IDLE instruction can also be used to allow the processor to
hold off execution while booting continues through the BDMA
interface. For BDMA accesses while in Host Mode, the
addresses to boot memory must be constructed externally to the
ADSP-218xL. The only memory address bit provided by the
processor is A0.
IDMA Port Booting
ADSP-218xL series members can also boot programs through
its internal DMA port. If Mode C = 1, Mode B = 0, and Mode A
= 1, the ADSP-218xL boots from the IDMA port. IDMA feature
Rev. C |
• Halting program execution.
If an ADSP-218xL series member is performing an external
memory access when the external device asserts the BR signal, it
will not three-state the memory interfaces nor assert the BG signal until the processor cycle after the access completes. The
instruction does not need to be completed when the bus is
granted. If a single instruction requires two external memory
accesses, the bus will be granted between the two accesses.
When the BR signal is released, the processor releases the BG
signal, re-enables the output drivers, and continues program
execution from the point at which it stopped.
The bus request feature operates at all times, including when the
processor is booting and when RESET is active.
The BGH pin is asserted when an ADSP-218xL series member
requires the external bus for a memory or BDMA access, but is
stopped. The other device can release the bus by deasserting bus
request. Once the bus is released, the ADSP-218xL deasserts BG
and BGH and executes the external memory access.
FLAG I/O PINS
ADSP-218xL series members have eight general-purpose programmable input/output flag pins. They are controlled by two
memory-mapped registers. The PFTYPE register determines
the direction, 1 = output and 0 = input. The PFDATA register is
used to read and write the values on the pins. Data being read
from a pin configured as an input is synchronized to the
ADSP-218xL’s clock. Bits that are programmed as outputs
will read the value being output. The PF pins default to input
during reset.
In addition to the programmable flags, ADSP-218xL series
members have five fixed-mode flags, FI, FO, FL0, FL1, and FL2.
FL0 to FL2 are dedicated output flags. FI and FO are available as
an alternate configuration of SPORT1.
Note: Pins PF0, PF1, PF2, and PF3 are also used for device configuration during reset.
Page 13 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
INSTRUCTION SET DESCRIPTION
• Fill and dump memory
The ADSP-218xL series assembly language instruction set has
an algebraic syntax that was designed for ease of coding and
readability. The assembly language, which takes full advantage
of the processor’s unique architecture, offers the following benefits:
• Source level debugging
• The algebraic syntax eliminates the need to remember
cryptic assembler mnemonics. For example, a typical arithmetic add instruction, such as AR = AX0 + AY0, resembles
a simple equation.
• Every instruction assembles into a single, 24-bit word that
can execute in a single instruction cycle.
• The syntax is a superset ADSP-2100 Family assembly language and is completely source and object code compatible
with other family members. Programs may need to be
relocated to utilize on-chip memory and conform to the
ADSP-218xL’s interrupt vector and reset vector map.
• Sixteen condition codes are available. For conditional
jump, call, return, or arithmetic instructions, the condition
can be checked and the operation executed in the same
instruction cycle.
The VisualDSP++ IDE lets programmers define and manage
DSP software development. The dialog boxes and property
pages let programmers configure and manage all of the
ADSP-218xL development tools, including the syntax highlighting in the VisualDSP++ editor. This capability controls how the
development tools process inputs and generate outputs.
The ADSP-2189M EZ-KIT Lite®‡ provides developers with a
cost-effective method for initial evaluation of the powerful
ADSP-218xL DSP family architecture. The ADSP-2189M
EZ-KIT Lite includes a standalone ADSP-2189M DSP board
supported by an evaluation suite of VisualDSP++. With this
EZ-KIT Lite, users can learn about DSP hardware and software
development and evaluate potential applications of the
ADSP-218xL series. The ADSP-2189M EZ-KIT Lite provides an
evaluation suite of the VisualDSP++ development environment
with the C compiler, assembler, and linker. The size of the DSP
executable that can be built using the EZ-KIT Lite tools is limited to 8K words.
The EZ-KIT Lite includes the following features:
• 75 MHz ADSP-2189M
• Multifunction instructions allow parallel execution of an
arithmetic instruction, with up to two fetches or one write
to processor memory space, during a single
instruction cycle.
• Full 16-Bit Stereo Audio I/O with AD73322 Codec
• RS-232 Interface
• EZ-ICE® Connector for Emulator Control
DEVELOPMENT SYSTEM
• DSP Demonstration Programs
Analog Devices’ wide range of software and hardware
development tools supports the ADSP-218xL series. The DSP
tools include an integrated development environment, an evaluation kit, and a serial port emulator.
VisualDSP++®† is an integrated development environment,
allowing for fast and easy development, debugging, and deployment. The VisualDSP++ project management environment lets
programmers develop and debug an application. This environment includes an easy-to-use assembler that is based on an
algebraic syntax; an archiver (librarian/library builder); a linker;
a PROM-splitter utility; a cycle-accurate, instruction-level simulator; a C compiler; and a C run-time library that includes DSP
and mathematical functions.
Debugging both C and assembly programs with the
VisualDSP++ debugger, programmers can:
• Evaluation Suite of VisualDSP++
The ADSP-218x EZ-ICE§ Emulator provides an easier and more
cost-effective method for engineers to develop and optimize
DSP systems, shortening product development cycles for faster
time-to-market. ADSP-218xL series members integrate on-chip
emulation support with a 14-pin ICE-PortTM interface. This
interface provides a simpler target board connection that
requires fewer mechanical clearance considerations than other
ADSP-2100 Family EZ-ICEs. ADSP-218xL series members need
not be removed from the target system when using the EZ-ICE,
nor are any adapters needed. Due to the small footprint of the
EZ-ICE connector, emulation can be supported in final board
designs.The EZ-ICE performs a full range of functions,
including:
• In-target operation
• View mixed C and assembly code (interleaved source and
object information)
• Up to 20 breakpoints
• Single-step or full-speed operation
• Insert break points
• Registers and memory values can be examined and altered
• Set conditional breakpoints on registers, memory, and
stacks
• PC upload and download functions
• Instruction-level emulation of program booting
and execution
• Trace instruction execution
‡
†
§
VisualDSP++ is a registered trademark of Analog Devices, Inc.
Rev. C
|
Page 14 of 48 |
EZ-KIT Lite is a registered trademark of Analog Devices, Inc.
EZ-ICE is a registered trademark of Analog Devices, Inc.
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
• Complete assembly and disassembly of instructions
The EZ-ICE connects to the target system via a ribbon cable and
a 14-pin female plug. The female plug is plugged onto the 14pin connector (a pin strip header) on the target board.
• C source-level debugging
Designing an EZ-ICE-Compatible System
Target Board Connector for EZ-ICE Probe
ADSP-218xL series members have on-chip emulation support
and an ICE-Port, a special set of pins that interface to the
EZ-ICE. These features allow in-circuit emulation without
replacing the target system processor by using only a 14-pin
connection from the target system to the EZ-ICE. Target systems must have a 14-pin connector to accept the EZ-ICE’s incircuit probe, a 14-pin plug.
The EZ-ICE connector (a standard pin strip header) is shown in
Figure 14. This connector must be added to the target board
design to use the EZ-ICE. Be sure to allow enough room in the
system to fit the EZ-ICE probe onto the 14-pin connector.
One method of ensuring that the values located on the mode
pins are those desired is to construct a circuit like the one shown
in Figure 13. This circuit forces the value located on the Mode A
pin to logic high, regardless of whether it is latched via the
RESET or ERESET pin.
ERESET
RESET
1
2
3
4
5
6
7
ⴛ
8
9
10
11
12
13
14
BG
GND
Issuing the chip reset command during emulation causes the
DSP to perform a full chip reset, including a reset of its memory
mode. Therefore, it is vital that the mode pins are set correctly
PRIOR to issuing a chip reset command from the emulator user
interface. If a passive method of maintaining mode information
is being used (as discussed in Setting Memory Mode on Page 4),
it does not matter that the mode information is latched by an
emulator reset. However, if the RESET pin is being used as a
method of setting the value of the mode pins, the effects of an
emulator reset must be taken into consideration.
EBG
BR
EBR
KEY (NO PIN)
EINT
ELIN
ELOUT
ECLK
EMS
EE
RESET
ERESET
TOP VIEW
Figure 14. Target Board Connector for EZ-ICE
The 14-pin, 2-row pin strip header is keyed at the Pin 7 location—Pin 7 must be removed from the header. The pins must
be 0.025 inch square and at least 0.20 inch in length. Pin spacing
should be 0.1ⴛ0.1 inch. The pin strip header must have at least
0.15 inch clearance on all sides to accept the EZ-ICE probe plug.
Pin strip headers are available from vendors such as 3M,
McKenzie, and Samtec.
ADSP-218xL
1k⍀
Target Memory Interface
MODE A/PF0
For the target system to be compatible with the EZ-ICE emulator, it must comply with the following memory interface
guidelines:
PROGRAMMABLE I/O
Figure 13. Mode A Pin/EZ-ICE Circuit
The ICE-Port interface consists of the following ADSP-218xL
pins: EBR, EINT, EE, EBG, ECLK, ERESET, ELIN, EMS, and
ELOUT.
These ADSP-218xL pins must be connected only to the EZ-ICE
connector in the target system. These pins have no function
except during emulation, and do not require pull-up or pulldown resistors. The traces for these signals between the
ADSP-218xL and the connector must be kept as short as possible, no longer than 3 inches.
The following pins are also used by the EZ-ICE: BR, BG, RESET,
and GND.
The EZ-ICE uses the EE (emulator enable) signal to take control
of the ADSP-218xL in the target system. This causes the processor to use its ERESET, EBR, and EBG pins instead of the RESET,
BR, and BG pins. The BG output is three-stated. These signals
do not need to be jumper-isolated in the system.
Rev. C |
Design the Program Memory (PM), Data Memory (DM), Byte
Memory (BM), I/O Memory (IOM), and Composite Memory
(CM) external interfaces to comply with worst-case device
timing requirements and switching characteristics as specified
in this data sheet. The performance of the EZ-ICE may
approach published worst-case specification for some memory
access timing requirements and switching characteristics.
Note: If the target does not meet the worst-case chip specification for memory access parameters, the circuitry may not be
able to be emulated at the desired CLKIN frequency. Depending
on the severity of the specification violation, the system may be
difficult to manufacture, as DSP components statistically vary in
switching characteristic and timing requirements, within published limits.
Restriction: All memory strobe signals on the ADSP-218xL
(RD, WR, PMS, DMS, BMS, CMS, and IOMS) used in the target
system must have 10 kΩ pull-up resistors connected when the
EZ-ICE is being used. The pull-up resistors are necessary
Page 15 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
because there are no internal pull-ups to guarantee their state
during prolonged three-state conditions resulting from typical
EZ-ICE debugging sessions. These resistors may be removed
when the EZ-ICE is not being used.
Target System Interface Signals
When the EZ-ICE board is installed, the performance on some
system signals changes. Design the system to be compatible with
the following system interface signal changes introduced by the
EZ-ICE board:
• EZ-ICE emulation introduces an 8 ns propagation
delay between the target circuitry and the DSP on the
RESET signal.
• EZ-ICE emulation introduces an 8 ns propagation
delay between the target circuitry and the DSP on the BR
signal.
• EZ-ICE emulation ignores RESET and BR, when
single-stepping.
• EZ-ICE emulation ignores RESET and BR when in Emulator Space (DSP halted).
• EZ-ICE emulation ignores the state of target BR in certain
modes. As a result, the target system may take control of
the DSP’s external memory bus only if bus grant (BG) is
asserted by the EZ-ICE board’s DSP.
ADDITIONAL INFORMATION
This data sheet provides a general overview of ADSP-218xL
series functionality. For additional information on the architecture and instruction set of the processor, refer to the ADSP-218x
DSP Hardware Reference and the ADSP-218x DSP Instruction
Set Reference.
Rev. C
|
Page 16 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
PIN DESCRIPTIONS
ADSP-218xL series members are available in a 100-lead LQFP
package and a 144-ball BGA package. In order to maintain maximum functionality and reduce package size and pin count,
some serial port, programmable flag, interrupt and external bus
pins have dual, multiplexed functionality. The external bus pins
are configured during RESET only, while serial port pins are
software configurable during program execution. Flag and
interrupt functionality is retained concurrently on multiplexed
pins. In cases where pin functionality is reconfigurable, the
default state is shown in plain text in Table 9, while alternate
functionality is shown in italics.
Table 9. Common-Mode Pins
Pin Name
RESET
BR
BG
BGH
DMS
PMS
IOMS
BMS
CMS
RD
WR
IRQ2/
PF7
IRQL1/
PF6
IRQL0/
PF5
IRQE/
PF4
Mode D2/
PF3
Mode C/
PF2
Mode B/
PF1
Mode A/
PF0
CLKIN
XTAL
CLKOUT
SPORT0
SPORT1/
IRQ1–0, FI, FO
PWD
PWDACK
FL0, FL1, FL2
VDDINT
VDDEXT
GND
No. of Pins
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5
5
I/O
I
I
O
O
O
O
O
O
O
O
O
I
I/O
I
I/O
I
I/O
I
I/O
I
I/O
I
I/O
I
I/O
I
I/O
I
O
O
I/O
I/O
1
1
3
2
4
10
I
O
O
I
I
I
1
1
1
1
1
1
1
Function
Processor Reset Input
Bus Request Input
Bus Grant Output
Bus Grant Hung Output
Data Memory Select Output
Program Memory Select Output
Memory Select Output
Byte Memory Select Output
Combined Memory Select Output
Memory Read Enable Output
Memory Write Enable Output
Edge- or Level-Sensitive Interrupt Request1
Programmable I/O Pin
Level-Sensitive Interrupt Requests1
Programmable I/O Pin
Level-Sensitive Interrupt Requests1
Programmable I/O Pin
Edge-Sensitive Interrupt Requests1
Programmable I/O Pin
Mode Select Input—Checked Only During RESET
Programmable I/O Pin During Normal Operation
Mode Select Input—Checked Only During RESET
Programmable I/O Pin During Normal Operation
Mode Select Input—Checked Only During RESET
Programmable I/O Pin During Normal Operation
Mode Select Input—Checked Only During RESET
Programmable I/O Pin During Normal Operation
Clock Input
Quartz Crystal Output
Processor Clock Output
Serial Port I/O Pins
Serial Port I/O Pins
Edge- or Level-Sensitive Interrupts, FI, FO3
Power-Down Control Input
Power-Down Acknowledge Control Output
Output Flags
Internal VDD (1.8 V) Power (LQFP)
External VDD (1.8 V, 2.5 V, or 3.3 V) Power (LQFP)
Ground (LQFP)
Rev. C |
Page 17 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Table 9. Common-Mode Pins (Continued)
Pin Name
VDDINT
VDDEXT
GND
EZ-Port
No. of Pins
4
7
20
9
I/O
I
I
I
I/O
Function
Internal VDD (3.3 V) Power (BGA)
External VDD (3.3 V) Power (BGA)
Ground (BGA)
For Emulation Use
1
Interrupt/Flag pins retain both functions concurrently. If IMASK is set to enable the corresponding interrupts, the DSP will vector to the appropriate interrupt vector address
when the pin is asserted, either by external devices or set as a programmable flag.
2
This mode applies to the ADSP-2187L only.
3
SPORT configuration determined by the DSP System Control Register. Software configurable.
MEMORY INTERFACE PINS
ADSP-218xL series members can be used in one of two modes:
Full Memory Mode, which allows BDMA operation with full
external overlay memory and I/O capability, or Host Mode,
which allows IDMA operation with limited external addressing
capabilities.
The operating mode is determined by the state of the Mode C
pin during RESET and cannot be changed while the processor is
running. Table 10 and Table 11 list the active signals at specific
pins of the DSP during either of the two operating modes (Full
Memory or Host). A signal in one table shares a pin with a signal from the other table, with the active signal determined by
the mode that is set. For the shared pins and their alternate signals (e.g., A4/IAD3), refer to the package pinouts in Table 29 on
Page 44 and Table 30 on Page 45.
Table 10. Full Memory Mode Pins (Mode C = 0)
Pin Name
A13–0
D23–0
No. of Pins
14
24
I/O
O
I/O
Function
Address Output Pins for Program, Data, Byte, and I/O Spaces
Data I/O Pins for Program, Data, Byte, and I/O Spaces (8 MSBs are also used as Byte Memory
Addresses.)
Table 11. Host Mode Pins (Mode C = 1)
Pin Name
IAD15–0
A0
D23–8
IWR
IRD
IAL
IS
IACK
1
2
No. of Pins
16
1
16
1
1
1
1
1
I/O
I/O
O
I/O
I
I
I
I
O
Function
IDMA Port Address/Data Bus
Address Pin for External I/O, Program, Data, or Byte Access1
Data I/O Pins for Program, Data, Byte, and I/O Spaces
IDMA Write Enable
IDMA Read Enable
IDMA Address Latch Pin
IDMA Select
IDMA Port Acknowledge Configurable in Mode D2; Open Drain
In Host Mode, external peripheral addresses can be decoded using the A0, CMS, PMS, DMS, and IOMS signals.
Mode D function available on ADSP-2187L only.
Rev. C
|
Page 18 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
TERMINATING UNUSED PINS
Table 12 shows the recommendations for terminating
unused pins.
Table 12. Unused Pin Terminations
I/O
3-State (Z)2
O
O
O (Z)
I/O (Z)
O (Z)
I/O (Z)
I/O (Z)
I
I/O (Z)
I
I/O (Z)
I
I/O (Z)
I
I/O (Z)
Reset
State
O
O
High-Z
High-Z
High-Z
High-Z
High-Z
I
High-Z
I
High-Z
I
High-Z
I
High-Z
I/O (Z)
I/O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
O (Z)
I
O (Z)
O
I/O (Z)
High-Z
High-Z
O
O
O
O
O
O
O
I
O
O
I
IRQL1/PF6
I/O (Z)
I
IRQL0/PF5
I/O (Z)
I
IRQE/PF4
I/O (Z)
I
PWD
SCLK0
RFS0
DR0
TFS0
DT0
I
I/O
I/O
I
I/O
O
I
I
I
I
I
O
Pin Name1
XTAL
CLKOUT
A13–1 or
IAD12–0
A0
D23–8
D7 or
IWR
D6 or
IRD
D5 or
IAL
D4 or
IS
D3 or
IACK
D2–0 or
IAD15–13
PMS
DMS
BMS
IOMS
CMS
RD
WR
BR
BG
BGH
IRQ2/PF7
Rev. C |
High-Z3 Caused By
BR, EBR
IS
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
IS
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
BR, EBR
EE
Page 19 of 48 |
Unused Configuration
Float
Float4
Float
Float
Float
Float
Float
High (Inactive)
Float
High (Inactive)
Float
Low (Inactive)
Float
High (Inactive)
Float
Float
Float
Float
Float
Float
Float
Float
Float
Float
Float
High (Inactive)
Float
Float
Input = High (Inactive) or Program as Output, Set to
1, Let Float5
Input = High (Inactive) or Program as Output, Set to
1, Let Float5
Input = High (Inactive) or Program as Output, Set to
1, Let Float5
Input = High (Inactive) or Program as Output, Set to
1, Let Float5
High
Input = High or Low, Output = Float
High or Low
High or Low
High or Low
Float
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Table 12. Unused Pin Terminations (Continued)
Pin Name1
SCLK1
RFS1/IRQ0
DR1/FI
TFS1/IRQ1
DT1/FO
EE
EBR
EBG
ERESET
EMS
EINT
ECLK
ELIN
ELOUT
I/O
3-State (Z)2
I/O
I/O
I
I/O
O
I
I
O
I
O
I
I
I
O
Reset
State
I
I
I
I
O
I
I
O
I
O
I
I
I
O
High-Z3 Caused By
Unused Configuration
Input = High or Low, Output = Float
High or Low
High or Low
High or Low
Float
Float
Float
Float
Float
Float
Float
Float
Float
Float
1
CLKIN, RESET, and PF3–0/Mode D–A are not included in this table because these pins must be used.
All bidirectional pins have three-stated outputs. When the pin is configured as an output, the output is High-Z (high impedance) when inactive.
3
High-Z = high impedance.
4
If the CLKOUT pin is not used, turn it OFF, using CLKODIS in SPORT0 autobuffer control register.
5
If the Interrupt/Programmable Flag pins are not used, there are two options: Option 1: When these pins are configured as INPUTS at reset and function as interrupts and
input flag pins, pull the pins High (inactive). Option 2: Program the unused pins as OUTPUTS, set them to 1 prior to enabling interrupts, and let pins float.
2
Rev. C
|
Page 20 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
SPECIFICATIONS
OPERATING CONDITIONS
Parameter1
Min
3.0
0
VDD
TAMB
1
K Grade (Commercial)
Max
3.6
+70
Min
3.0
–40
B Grade (Industrial)
Max
3.6
+85
Unit
V
°C
Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS
K and B Grades
Parameter1
VIH
Description
Hi-Level Input Voltage2, 3
VIL
VOH
Lo-Level Input Voltage2, 3
Hi-Level Output Voltage2, 4, 5
VOL
IIH
IIL
IOZH
IOZL
CI
CO
Lo-Level Output Voltage2, 4, 5
Hi-Level Input Current3
Lo-Level Input Current3
Three-State Leakage Current7
Three-State Leakage Current7
Input Pin Capacitance3, 6
Output Pin Capacitance6, 7, 9
Test Conditions
@ VDD = Max
@ VDD = Max
@ VDD = Min
@ VDD = Min, IOH = –0.5 mA
@ VDD = Min, IOH = –100 μA6
@ VDD = Min, IOL = 2.0 mA
@ VDD = Max, VIN = VDD Max
@ VDD = Max, VIN = 0 V
@ VDD = Max, VIN = VDD Max8
@ VDD = Max, VIN = 0 V8
@ VIN = 3.5 V, fIN = 1.0 MHz, TAMB = 25°C
@ VIN = 2.5 V, fIN = 1.0 MHz, TAMB = 25°C
1
Min
2.0
2.2
Typ
0.8
1.35
VDD – 0.3
Specifications subject to change without notice.
Bidirectional pins: D23–0, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A13–1, PF7–0.
3
Input only pins: CLKIN, RESET, BR, DR0, DR1, PWD.
4
Output pins: BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2–FL0, BGH.
5
Although specified for TTL outputs, all ADSP-218xL outputs are CMOS-compatible and will drive to VDD and GND, assuming no dc loads.
6
Guaranteed but not tested.
7
Three-statable pins: A13–A1, D23–D0, PMS, DMS, BMS, IOMS, CMS, RD, WR, DT0, DT1, SCLK0, SCLK1, TFS0, TFS1, RFS0, RFS1, PF7–PF0.
8
0 V on BR.
9
Output pin capacitance is the capacitive load for any three-stated output pin.
2
Rev. C |
Page 21 of 48 |
January 2008
Max
0.4
10
10
10
10
8
8
Unit
V
V
V
V
V
V
μA
μA
μA
μA
pF
pF
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
ABSOLUTE MAXIMUM RATINGS
ESD SENSITIVITY
Stresses greater than those listed below may cause permanent
damage to the device. These are stress ratings only. Functional
operation of the device at these or any other conditions greater
than those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Parameter
Supply Voltage (VDD)
Input Voltage1
Output Voltage Swing2
Operating Temperature Range
Storage Temperature Range
Rating
–0.3 V to +4.6 V
–0.5 V to VDD + 0.5 V
–0.5 V to VDD +0.5 V
–40°C to +85°C
–65°C to +150°C
Charged devices and circuit boards can discharge
without detection. Although this product features
patented or proprietary protection circuitry, damage
may occur on devices subjected to high energy ESD.
Therefore, proper ESD precautions should be taken to
avoid performance degradation or loss of functionality.
TIMING SPECIFICATIONS
General Notes
1
Applies to bidirectional pins (D23–0, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1,
A13–1, PF7–0) and input only pins (CLKIN, RESET, BR, DR0, DR1, PWD).
2
Applies to output pins (BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK,
A0, DT0, DT1, CLKOUT, FL2–0, BGH).
PACKAGE INFORMATION
The information presented in Figure 15 provides details about
the package branding for the ADSP-218xL processors. For a
complete listing of product availability, see Ordering Guide on
Page 47.
a
ADSP-218xL
tppZ-cc
Use the exact timing information given. Do not attempt to
derive parameters from the addition or subtraction of others.
While addition or subtraction would yield meaningful results
for an individual device, the values given in this data sheet
reflect statistical variations and worst cases. Consequently,
parameters cannot be added up meaningfully to derive
longer times.
Timing Notes
Switching characteristics specify how the processor changes its
signals. Designers have no control over this timing—circuitry
external to the processor must be designed for compatibility
with these signal characteristics. Switching characteristics tell
what the processor will do in a given circumstance. Switching
characteristics can also be used to ensure that any timing
requirement of a device connected to the processor (such as
memory) is satisfied.
Timing requirements apply to signals that are controlled by circuitry external to the processor, such as the data input for a read
operation. Timing requirements guarantee that the processor
operates correctly with other devices.
vvvvvv.x n.n
yyww country_of_origin
Figure 15. Typical Package Brand
Frequency Dependency For Timing Specifications
Table 13. Package Brand Information
Brand Key
t
pp
Z
cc
vvvvvv.x
n.n
yyww
ESD (electrostatic discharge) sensitive device.
Field Description
Temperature Range
Package Type
RoHs Compliant Option (optional)
See Ordering Guide
Assembly Lot Code
Silicon Revision
Date Code
Rev. C
|
tCK is defined as 0.5 tCKI. The ADSP-218xL uses an input clock
with a frequency equal to half the instruction rate. For example,
a 26 MHz input clock (which is equivalent to 38 ns) yields a
19 ns processor cycle (equivalent to 52 MHz). tCK values within
the range of 0.5 tCKI period should be substituted for all relevant
timing parameters to obtain the specification value.
Example: tCKH = 0.5 tCK – 7 ns = 0.5 (19) – 7 ns = 2.5 ns
Page 22 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Clock Signals and Reset
Table 14. Clock Signals and Reset
Parameter
Timing Requirements:
tCKI
CLKIN Period
tCKIL
CLKIN Width Low
tCKIH
CLKIN Width High
Switching Characteristics:
tCKL
CLKOUT Width Low
CLKOUT Width High
tCKH
tCKOH
CLKIN High to CLKOUT High
Control Signals Timing Requirements:
tRSP
RESET Width Low1
tMS
Mode Setup Before RESET High
tMH
Mode Hold After RESET High
1
ADSP-2184L, ADSP-2186L
Min
Max
ADSP-2185L, ADSP-2187L
Min
Max
Unit
50
20
20
38
15
15
ns
ns
ns
150
0.5tCK – 7
0.5tCK – 7
0
20
5tCK
2
5
0.5tCK – 7
0.5tCK – 7
0
5tCK
2
5
100
20
ns
ns
ns
ns
ns
ns
Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLKIN cycles, assuming stable CLKIN (not including crystal oscillator
start-up time).
tCKI
tCKIH
CLKIN
tCKIL
tCKOH
tCKH
CLKOUT
tCKL
MODE A D
tMS
tMH
RESET
tRSP
Figure 16. Clock Signals and Reset
Rev. C |
Page 23 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Interrupts and Flags
Table 15. Interrupts and Flags
Parameter
Timing Requirements:
IRQx, FI, or PFx Setup Before CLKOUT Low1, 2, 3, 4
tIFS
tIFH
IRQx, FI, or PFx Hold After CLKOUT High1, 2, 3, 4
Switching Characteristics:
tFOH
Flag Output Hold After CLKOUT Low5
tFOD
Flag Output Delay From CLKOUT Low5
Min
Max
0.25tCK + 15
0.25tCK
ns
ns
0.5tCK – 5
ns
ns
0.5tCK + 4
1
Unit
If IRQx and FI inputs meet tIFS and tIFH setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on the
following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the ADSP-218x DSP Hardware Reference for further information on
interrupt servicing.)
2
Edge-sensitive interrupts require pulse widths greater than 10 ns; level-sensitive interrupts must be held low until serviced.
3
IRQx = IRQ0, IRQ1, IRQ2, IRQL0, IRQL1, IRQLE.
4
PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7.
5
Flag Outputs = PFx, FL0, FL1, FL2, FO.
tFOD
CLKOUT
tFOH
FLAG
OUTPUTS
tIFH
IRQx
FI
PFx
tIFS
Figure 17. Interrupts and Flags
Rev. C
|
Page 24 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Bus Request–Bus Grant
Table 16. Bus Request—Bus Grant
Parameter
Timing Requirements:
BR Hold After CLKOUT High1
tBH
tBS
BR Setup Before CLKOUT Low1
Switching Characteristics:
tSD
CLKOUT High to xMS, RD, WR Disable2
tSDB
xMS, RD, WR Disable to BG Low
tSE
BG High to xMS, RD, WR Enable
xMS, RD, WR Enable to CLKOUT High3
tSEC
tSDBH
xMS, RD, WR Disable to BGH Low4
tSEH
BGH High to xMS, RD, WR Enable4
Min
Max
0.25tCK + 2
0.25tCK + 17
ns
ns
0.25tCK + 10
0
0
0.25tCK – 7
0
0
1
Unit
ns
ns
ns
ns
ns
ns
BR is an asynchronous signal. If BR meets the setup/hold requirements, it will be recognized during the current clock cycle; otherwise the signal will be recognized on the
following cycle. Refer to the ADSP-2100 Family User’s Manual for BR/BG cycle relationships.
xMS = PMS, DMS, CMS, IOMS, BMS.
3
For the ADSP-2187L, this specification is 0.25tCK – 4 ns min.
4
BGH is asserted when the bus is granted and the processor or BDMA requires control of the bus to continue.
2
tBH
CLKOUT
BR
tBS
CLKOUT
PMS, DMS
BMS, RD
CMS, WR,
IOMS
tSD
tSEC
BG
tSDB
BGH
tSE
tSDBH
tSEH
Figure 18. Bus Request—Bus Grant
Rev. C |
Page 25 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Memory Read
Table 17. Memory Read
Parameter
Timing Requirements:
RD Low to Data Valid1
tRDD
tAA
A13–0, xMS to Data Valid2
tRDH
Data Hold from RD High3
Switching Characteristics:
tRP
RD Pulse Width
tCRD
CLKOUT High to RD Low
A13–0, xMS Setup Before RD Low
tASR
tRDA
A13–0, xMS Hold After RD Deasserted
tRWR
RD High to RD or WR Low
Min
Unit
0.5tCK – 9 + w
0.75tCK – 12.5 + w
ns
ns
ns
1
0.5tCK – 5 + w
0.25tCK – 5
0.25tCK – 6
0.25tCK – 3
0.5tCK – 5
w = wait states × tCK.
xMS = PMS, DMS, CMS, IOMS, BMS.
3
For the ADSP-2187L, this specification is 0 ns min.
1
2
CLKOUT
ADDRESS LINES1
DMS, PMS,
BMS, IOMS,
CMS
tRDA
RD
tASR
tRP
tCRD
tRWR
DATA LINES2
tAA
tRDD
tRDH
WR
1ADDRESS LINES FOR ACCESSES ARE:
BDMA: A13–0 (14 LSBs), D23–16 (8 MSBs)
I/O SPACE: A10–0
EXTERNAL PM AND DM: A13–0
2DATA LINES FOR ACCESSES ARE:
BDMA: D15–8
I/O SPACE: D23–8
EXTERNAL DM: D23–8
EXTERNAL PM: D23–0
Figure 19. Memory Read
Rev. C
Max
|
Page 26 of 48 |
January 2008
0.25tCK + 7
ns
ns
ns
ns
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Memory Write
Table 18. Memory Write
Parameter
Switching Characteristics:
Data Setup Before WR High1
tDW
tDH
Data Hold After WR High
tWP
WR Pulse Width
tWDE
WR Low to Data Enabled
tASW
A13–0, xMS Setup Before WR Low2
tDDR
Data Disable Before WR or RD Low
CLKOUT High to WR Low
tCWR
tAW
A13–0, xMS Setup Before WR Deasserted
tWRA
A13–0, xMS Hold After WR Deasserted
tWWR
WR High to RD or WR Low
1
2
Min
Max
0.5tCK– 7 + w
0.25tCK – 2
0.5tCK – 5 + w
0
0.25tCK – 6
0.25tCK – 7
0.25tCK – 5
0.75tCK – 9 + w
0.25tCK – 3
0.5tCK – 5
w = wait states × tCK.
xMS = PMS, DMS, CMS, IOMS, BMS.
CLKOUT
ADDRESS LINES1
DMS, PMS,
BMS, CMS,
IOMS
tWRA
WR
tASW
tWWR
tWP
tAW
tDH
tCWR
DATA LINES2
tDW
tWDE
RD
1ADDRESS LINES FOR ACCESSES ARE:
BDMA: A13–0 (14 LSBs), D23–16 (8 MSBs)
I/O SPACE: A10–0
EXTERNAL PM AND DM: A13–0
2DATA LINES FOR ACCESSES ARE:
BDMA: D15–8
I/O SPACE: D23–8
EXTERNAL DM: D23–8
EXTERNAL PM: D23–0
Figure 20. Memory Write
Rev. C |
Page 27 of 48 |
January 2008
tDDR
0.25tCK + 7
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Serial Ports
Table 19. Serial Ports
Parameter
Timing Requirements:
SCLK Period1
tSCK
tSCS
DR/TFS/RFS Setup Before SCLK Low
tSCH
DR/TFS/RFS Hold After SCLK Low2
tSCP
SCLKIN Width3
Switching Characteristics:
tCC
CLKOUT High to SCLKOUT
SCLK High to DT Enable
tSCDE
tSCDV
SCLK High to DT Valid
tRH
TFS/RFSOUT Hold After SCLK High
tRD
TFS/RFSOUT Delay from SCLK High
tSCDH
DT Hold after SCLK High
tTDE
TFS (Alt) to DT Enable
TFS (Alt) to DT Valid
tTDV
tSCDD
SCLK High to DT Disable
tRDV
RFS (Multichannel, Frame Delay Zero) to DT Valid
Min
50
4
8
20
0.25tCK
0
15
0
0
14
15
15
For the ADSP-2187L, this specification is 38 ns min.
For the ADSP-2187L, this specification is 7 ns min.
3
For the ADSP-2185L, and the ADSP-2187L, this specification is 15 ns min.
|
Page 28 of 48 |
0.25tCK + 10
15
2
January 2008
Unit
ns
ns
ns
ns
0
1
Rev. C
Max
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
CLKOUT
t CC
tCC
tS C K
SCLK
tS CP
t SC S
DR
TFSIN
RFSIN
tSC H
tSC P
tRD
tR H
RFSO UT
TFSO UT
tS C DD
t SC D V
tSC D H
tS CD E
DT
tTD E
t TD V
TFSO UT
A LTER N A TE
FRA M E
M OD E
tR DV
RFS OU T
MU LTIC H A NN E L
M ODE ,
FR A ME DE LA Y 0
( MFD = 0 )
TFSIN
tTD E
tTD V
ALTE R NA TE
FR A ME
MO DE
tR DV
RFSIN
MU LTIC H A NN E L
M ODE ,
FR A ME DE LA Y 0
( MFD = 0 )
Figure 21. Serial Ports
Rev. C |
Page 29 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
IDMA Address Latch
Table 20. IDMA Address Latch
Parameter
Timing Requirements:
Duration of Address Latch1, 2
tIALP
tIASU
IAD15–0 Address Setup Before Address Latch End2
tIAH
IAD15–0 Address Hold After Address Latch End2, 3
tIKA
IACK Low Before Start of Address Latch2, 4
tIALS
Start of Write or Read After Address Latch End2, 4
tIALD
Address Latch Start After Address Latch End1, 2
Min
10
5
3
0
3
2
1
Start of Address Latch = IS Low and IAL High.
End of Address Latch = IS High or IAL Low.
3
For the ADSP-2187L, this specification is 2 ns min.
4
Start of Write or Read = IS Low and IWR Low or IRD Low.
2
IACK
tIKA
tIALD
IAL
tIALP
tIALP
IS
IAD15–0
tIASU
tIASU
tIAH
IRD OR IWR
Figure 22. IDMA Address Latch
Rev. C
|
Page 30 of 48 |
January 2008
tIAH
tIALS
Max
Unit
ns
ns
ns
ns
ns
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
IDMA Write, Short Write Cycle
Table 21. IDMA Write, Short Write Cycle
Parameter
Timing Requirements:
IACK Low Before Start of Write1
tIKW
tIWP
Duration of Write1, 2
tIDSU
IAD15–0 Data Setup Before End of Write2, 3, 4
tIDH
IAD15–0 Data Hold After End of Write2, 3, 4
Switching Characteristic:
tIKHW
Start of Write to IACK High5
Min
0
15
5
2
Start of Write = IS Low and IWR Low.
End of Write = IS High or IWR High.
3
If Write Pulse ends before IACK Low, use specifications tIDSU, tIDH.
4
If Write Pulse ends after IACK Low, use specifications tIKSU, tIKH.
5
For the ADSP-2185L, and the ADSP-2187L, this specification is 4 ns min., and 15 ns max.
2
tIKW
IACK
tIKHW
IS
tIWP
IWR
tIDSU
tIDH
DATA
Figure 23. IDMA Write, Short Write Cycle
Rev. C |
Page 31 of 48 |
January 2008
Unit
ns
ns
ns
ns
17
1
IAD15–0
Max
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
IDMA Write, Long Write Cycle
Table 22. IDMA Write, Long Write Cycle
Parameter
Timing Requirements:
IACK Low Before Start of Write1
tIKW
tIKSU
IAD15–0 Data Setup Before End of Write2, 3, 4
tIKH
IAD15–0 Data Hold After End of Write2, 3, 4
Switching Characteristics:
tIKLW
Start of Write to IACK Low4
tIKHW
Start of Write to IACK High5
Min
Max
0
0.5tCK + 10
2
ns
ns
ns
1.5tCK
17
1
Start of Write = IS Low and IWR Low.
If Write Pulse ends before IACK Low, use specifications tIDSU, tIDH.
3
If Write Pulse ends after IACK Low, use specifications tIKSU, tIKH.
4
This is the earliest time for IACK Low from Start of Write. For IDMA Write cycle relationships, please refer to the ADSP-2100 Family User’s Manual.
5
For the ADSP-2185L, and the ADSP-2187L, this specification is 4 ns min., and 15 ns max.
2
tIK W
IACK
tIKH W
tIK LW
IS
IWR
tIKSU
tIK H
DATA
IAD15–0
Figure 24. IDMA Write, Long Write Cycle
Rev. C
|
Page 32 of 48 |
January 2008
Unit
ns
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
IDMA Read, Long Read Cycle
Table 23. IDMA Read, Long Read Cycle
Parameter
Timing Requirements:
IACK Low Before Start of Read1
tIKR
tIRK
End of Read After IACK Low2
Switching Characteristics:
tIKHR
IACK High After Start of Read1, 3
tIKDS
IAD15–0 Data Setup Before IACK Low
tIKDH
IAD15 –0 Data Hold After End of Read2
IAD15–0 Data Disabled After End of Read2
tIKDD
tIRDE
IAD15–0 Previous Data Enabled After Start of Read
tIRDV
IAD15–0 Previous Data Valid After Start of Read4
tIRDH1
IAD15–0 Previous Data Hold After Start of Read (DM/PM1)5
tIRDH2
IAD15–0 Previous Data Hold After Start of Read (PM2)6
Min
Max
0
2
ns
ns
17
0.5tCK – 10
0
10
0
15
2tCK – 5
tCK – 5
1
Start of Read = IS Low and IRD Low.
End of Read = IS High or IRD High.
3
For the ADSP-2185L, and the ADSP-2187L, this specification is 4 ns min., and 15 ns max.
4
For the ADSP-2187L, this specification is 10 ns max.
5
DM read or first half of PM read.
6
Second half of PM read.
2
IACK
tIKHR
tIKR
IS
tIRK
IRD
tIKDH
tIKDS
tIRDE
PREVIOUS
DATA
IAD15–0
READ
DATA
tIRDV
tIKDD
tIRDH1 OR tIRDH2
Figure 25. IDMA Read, Long Read Cycle
Rev. C |
Page 33 of 48 |
January 2008
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
IDMA Read, Short Read Cycle
Table 24. IDMA Read, Short Read Cycle
Parameter1, 2
Timing Requirements:
IACK Low Before Start of Read3
tIKR
tIRP1
Duration of Read (DM/PM1)4, 5
tIRP2
Duration of Read (PM2)6, 7
Switching Characteristics:
tIKHR
IACK High After Start of Read3
tIKDH
IAD15–0 Data Hold After End of Read8
IAD15–0 Data Disabled After End of Read8
tIKDD
tIRDE
IAD15–0 Previous Data Enabled After Start of Read
tIRDV
IAD15–0 Previous Data Valid After Start of Read
Min
Max
0
15
15
ns
ns
ns
15
0
10
0
15
1
Unit
ns
ns
ns
ns
ns
Short Read Only must be disabled in the IDMA overlay memory mapped register. This mode is disabled by clearing (=0) Bit 14 of the IDMA overlay register, and is disabled
by default upon reset.
Consider using the Short Read Only mode, instead, because Short Read mode is not applicable at high clock frequencies.
3
Start of Read = IS Low and IRD Low.
4
DM Read or first half of PM Read.
5
For the ADSP-2186L, this specification also has a max value of 2tCK – 5.
6
Second half of PM Read.
7
For the ADSP-2186L, this specification also has a max value of tCK – 5 max.
8
End of Read = IS High or IRD High.
2
IACK
tIKR
tIKHR
IS
tIRPx
IRD
tIKDH
tIRDE
PREVIOUS
DATA
IAD15–0
tIRDV
tIKDD
Figure 26. IDMA Read, Short Read Cycle
Rev. C
|
Page 34 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
IDMA Read, Short Read Cycle in Short Read Only Mode
Table 25. IDMA Read, Short Read Cycle in Short Read Only Mode1
Parameter2
Timing Requirements:
IACK Low Before Start of Read3
tIKR
tIRP
Duration of Read4
Switching Characteristics:
tIKHR
IACK High After Start of Read3
tIKDH
IAD15–0 Previous Data Hold After End of Read4
tIKDD
IAD15–0 Previous Data Disabled After End of Read4
IAD15–0 Previous Data Enabled After Start of Read
tIRDE
tIRDV
IAD15–0 Previous Data Valid After Start of Read
Min
Max
0
10
ns
ns
10
0
10
0
10
1
Unit
ns
ns
ns
ns
ns
Applies to the ADSP-2187L only.
2
Short Read Only is enabled by setting Bit 14 of the IDMA overlay Register to 1 (0x3FE7). Short Read Only can be enabled by the processor core writing to the register or by
an external host writing to the register. Disabled by default.
3
Start of Read = IS Low and IRD Low. Previous data remains until end of read.
4
End of Read = IS High or IRD High.
IA CK
t IK R
t IK H R
IS
tIR P
IRD
t IK D H
t IR D E
PR E V IO U S
D A TA
IA D 15–0
t IR D V
tIK D D
L EG EN D :
IM PL IES TH A T IS A N D IR D C A N B E
HE LD IN D E FIN ITE LY B Y H O S T
Figure 27. IDMA Read, Short Read Cycle in Short Read Only Mode
Rev. C |
Page 35 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
POWER SUPPLY CURRENT
Table 26. Power Supply Current1
Parameter
ADSP-2184L
IDD Supply Current (Idle)2
IDD Supply Current (Dynamic)3
ADSP-2185L
IDD Supply Current (Idle)2
IDD Supply Current (Dynamic)3
ADSP-2186L
IDD Supply Current (Idle)2
IDD Supply Current (Dynamic)3
ADSP-2187L
IDD Supply Current (Idle)2
IDD Supply Current (Dynamic)3
Test Conditions
Min
@ VDD = 3.3 V4
@ VDD = 3.3, TAMB = 25°C, tCK = 25 ns4
@ VDD = 3.3 V4
tCK = 19 ns
tCK = 25 ns
tCK = 30 ns
@ VDD = 3.3 V, TAMB = 25°C4
tCK = 19 ns
tCK = 25 ns
tCK = 30 ns
@ VDD = 3.3 V4
@ VDD = 3.3 V, TAMB = 25°C, tCK = 25 ns4
@ VDD = 3.3 V4
tCK = 19 ns
tCK = 25 ns
tCK = 30 ns
@ VDD = 3.3 V, TAMB = 25°C4
tCK = 19 ns
tCK = 25 ns
tCK = 30 ns
1
Typ
Max
Unit
8.6
42
mA
mA
8.6
7.0
6.0
mA
mA
mA
49
38
31.5
mA
mA
mA
8.6
42
mA
mA
10
8
7
mA
mA
mA
51
41
34
mA
mA
mA
Specifications subject to change without notice.
Idle refers to ADSP-218xL state of operation during execution of IDLE instruction. Deasserted pins are driven to either VDD or GND.
3
IDD measurement taken with all instructions executing from internal memory. 50% of the instructions are multifunction (Types 1, 4, 5, 12, 13, 14), 30% are Type 2 and
Type 6, and 20% are idle instructions.
4
VIN = 0 V and 3 V.
2
Rev. C
|
Page 36 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
POWER DISSIPATION
Assumptions:
• External data memory is accessed every cycle with 50% of
the address pins switching.
To determine total power dissipation in a specific application,
the following equation should be applied for each output:
C ⴛ VDD2 ⴛ f
• External data memory writes occur every other cycle with
50% of the data pins switching.
where:
• Each address and data pin has a 10 pF total load at the pin.
C is load capacitance.
• Application operates at VDD = 3.3 V and tCK = 30 ns.
f is the output switching frequency.
Example: In an application where external data memory is used
and no other outputs are active, power dissipation is calculated
as follows:
Total Power Dissipation = PINT + (C ⴛVDD2 ⴛ f)
where:
P INT is the internal power dissipation from Figure 28 through
Figure 31 on Page 39.
(C ⴛ VDD2 ⴛ f) is calculated for each output, as in the example in
Table 27.
Table 27. Example Power Dissipation Calculation1
Parameters
Address, DMS
Data Output, WR
RD
CLKOUT
1
No. of Pins
8
9
1
1
× C (pF)
10
10
10
10
× VDD2 (V)
3.32
3.32
3.32
3.32
Total power dissipation for this example is PINT + 50.7 mW.
Rev. C |
Page 37 of 48 |
January 2008
× f (MHz)
33.3
16.67
16.67
33.3
PD (mW)
29.0
16.3
1.8
3.6
= 50.7
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
POWER, INTERNAL1, 2, 3
170
169mW
V DDINT = 3.6V
150
140
1 26mW
130
139 mW
V DDINT = 3.3V
120
110
10 2mW
V DDIN T = 3.0V
11 3mW
100
90
19 7mW
210
POWER (P IN T) – mW
POWER (P IN T) – mW
160
POWER, INTERNAL 1 , 2 , 3
230
190
VD D IN T = 3.6V
161m W
170
VD D INT = 3.3V
150
13 0mW
128m W
130
VD D INT = 3.0V
110
104m W
90
83mW
80
32
30
84m W
70
34
36
38
40
50
42
30
35
1/tCK – MHz
34
V DDINT = 3.6V
32
27mW
28
VDDINT = 3.3V
28mW
26
22mW
V DDINT = 3.0V
22
20
22mW
17mW
18
3 5mW
30
28
32
34
36
38
40
28m W
24
VD D IN T = 3.3V
20m W
22
22m W
20
16
42
VD D INT = 3.6V
25m W
26
V DD IN T = 3. 0V
16m W
18
30
30
35
1/tCK – MHz
28mW
VDD CORE = 1.9V
VDD CORE = 1.8V
20
15
10mW
13mW
IDLE(16)
12mW
IDL E(128)
10
28mW
30
25
20mW
20
15
9mW
5
5
32
34
36
55
35
13mW
38
40
42
IDLE(16)
10m W
IDLE(128)
10
30
50
40
POWER (PID LEn ) – mW
POWER (PID LEn ) – mW
45
POWER, IDLE n MODES2
45
30
25 22mW
40
1/ tC K – MHz
POWER, IDLE n MODES 2
35
55
32
35 mW
POWER (PIDL E) – mW
POWER (PIDL E) – mW
34
16
50
POWER, IDLE1 , 2 , 4
36
36
24
45
1/ tC K – MHz
POWER, IDLE1, 2, 4
38
40
12mW
9mW
30
1/tCK – MHz
35
40
45
50
55
1/tC K – MHz
NOTES
VALID FOR ALLTEMPERATURE GRADES.
1. POWER REFLECTS DEVICE OPERATING WITH NO
OUTPUT LOADS.
2.TYPICAL POWER DISSIPATION AT 3.3V V DD
AND 25°C, EXCEPT WHERE SPECIFIED.
3. IDD MEASUREMENTTAKEN WITH ALL INSTRUCTIONS
EXECUTING FROM INTERNAL MEMORY. 50% Of the INSTRUCTIONS
ARE MULTIFUNCTION (TYPES 1, 4, 5, 12, 13, 14), 30% ARE TYPE 2 AND
TYPE 6, AND 20% ARE IDLE INSTRUCTIONS.
4. IDLE REFERSTO STATE OF OPERATION DURING EXECUTION OF IDLE
INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER V DD OR GND.
NOTES
VALID FOR ALL TEMPERATURE G RADES.
1. POWER REFLECTS DE VICE O PERATING WI TH NO
O UTPUT LOADS.
2. TYPICAL POWE R DISSI PATIO N AT 3. 3V V D D
AND 25°C, EX CEPT WHERE SPE CI FI ED.
3. IDD MEASUREMENT TAKEN WITH ALL INSTRUCTI ONS
EXECUTING FROM INTERNAL MEMORY. 50% Of the INSTRUCTI ONS
ARE MULTIFUNCTI ON (TY PES 1, 4, 5, 12, 13, 14), 30% ARE TYP E 2 AND
TYPE 6, AND 20% ARE I DLE INSTRUCTIONS .
4. IDLE RE FERSTO STATE O F OPE RATI ON DURING EXECUTIO N OF IDLE
I NSTRUCTION. DEASSERTE D PI NS ARE DRI VEN TO EITHER VD D OR G ND.
Figure 28. Power vs. Frequency (ADSP-2184L)
Rev. C
Figure 29. Power vs. Frequency (ADSP-2185L)
|
Page 38 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
POWER, INTERNAL 1, 2, 3
170
210
169mW
VDD INT = 3.6V
150
140
126mW
139 mW
V DDINT = 3.3V
130
POWER (P IN T) – mW
POWER (P IN T) – mW
160
120
110
10 2mW
V DDINT = 3.0V
1 13mW
100
90
POWER, INTERNAL 1, 2, 3
230
170
VDDINT = 3.3V
150
130
110
70
50
30
VDDINT = 3.0V
13 2mW
112.2mW
32
34
36
38
40
42
87mW
35
30
40
POWER, IDLE1, 2, 4
38
45
50
55
1/ tCK – MHz
1/tCK – MHz
POWER, IDLE1, 2, 4
36
V DDINT = 3.6V
34
36
35mW
V DDINT = 3.6V
34
32
3 5mW
32
POWER (PIDL E) – mW
POWER (P ID LE ) – mW
168.3mW
144 mW
90
83mW
80
2 7mW
28
VDDINT = 3.3V
28mW
26
24 22mW
V DDINT = 3.0V
22
20
21 6mW
V DDINT = 3.6V
190
22mW
19mW
V DDINT = 3.3V
3 2mW
VDDINT = 3.0V
30
28
25mW
26
23mW
30mW
24
22
21mW
20
18
18
16
16
30
32
34
36
38
40
42
30
35
POWER, IDLE n MODES 2
35
40
45
50
55
1/ tCK – MHz
1/tCK – MHz
POWER, IDLE n MODES 2
45
28mW
40
25
22mW
VDD CORE = 1.9V
VDD CORE = 1.8V
20
13mW
15
10mW
IDLE(16)
12mW IDLE(128)
10
POWER (PID LEn ) – mW
POWER (PID LEn ) – mW
30
32mW
35
IDLE
30
25
23mW
20
15
13mW
IDLE(128)
10
9mW
5
5
30
32
34
36
38
40
42
IDLE(16)
10mW
12mW
9mW
30
35
40
45
50
55
1/tCK – MHz
1/tCK – MHz
NOTES
VALID FOR ALL TEMPERATURE GRADES.
1. POWER REFLECTS DEVICE OPERATING WITH NO
OUTPUT LOADS.
2.TYPICAL POWER DISSIPATION AT 3.3V V DD
AND 25°C, EXCEPT WHERE SPECIFIED.
3. IDD MEASUREMENT TAKEN WITH ALL INSTRUCTIONS
EXECUTING FROM INTERNAL MEMORY. 50% Of the INSTRUCTIONS
ARE MULTIFUNCTION (TYPES 1, 4, 5, 12, 13, 14), 30% ARE TYPE 2 AND
TYPE 6, AND 20% ARE IDLE INSTRUCTIONS.
4. IDLE REFERSTO STATE OF OPERATION DURING EXECUTION OF IDLE
INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER VDD OR GND.
NOTES
VALID FOR ALL TEMPERATURE GRADES.
1. POWER REFLECTS DEVICE OPERATING WITH NO
OUTPUT LOADS.
2.TYPICAL POWER DISSIPATION AT 3.3V VDD
AND 25°C, EXCEPT WHERE SPECIFIED.
3. IDD MEASUREMENT TAKEN WITH ALL INSTRUCT IONS
EXECUTING FROM INTERNAL MEMORY. 50% Of the INSTRUCTIONS
ARE MULTIFUNCTION (TYPES 1, 4, 5, 12, 13, 14), 30% ARE TYPE 2 AND
TYPE 6, AND 20% ARE IDLE INSTRUCTIONS.
4. IDLE REFERSTO STATE OF OPERATION DURING EXECUTION OF IDLE
INSTRUCTION. DEASSERTED PINS ARE DRIVEN TO EITHER V DD OR GND.
Figure 30. Power vs. Frequency (ADSP-2186L)
Rev. C |
Figure 31. Power vs. Frequency (ADSP-2187L)
Page 39 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
OUTPUT DRIVE CURRENTS
Figure 32 through Figure 35 show typical I-V characteristics for
the output drivers on the ADSP-218xL processors. The curves
represent the current drive capability of the output drivers as a
function of output voltage.
80
80
VDDEXT = 3.3V @ +25ⴗC
VDDEXT = 3.3V @ +25ⴗC
VDDEXT = 3.6V @ –40 ⴗC
60
VDDEXT = 3.6V @ –40 ⴗC
60
VOH
SOURCE CURRENT – mA
SOURCE CURRENT – mA
VOH
40
20
VDDEXT = 3.0V @ +85ⴗC
0
VDDEXT = 3.0V @ +85ⴗC
–20
VDDEXT = 3.3V @ +25ⴗC
–40
40
20
VDDEXT = 3.0V @ +85ⴗC
0
VDDEXT = 3.0V @ +85ⴗC
–20
VDDEXT = 3.3V @ +25ⴗC
–40
VOL
VOL
–60
–60
VDDEXT = 3.6V @ –40ⴗC
VDDEXT = 3.6V @ –40ⴗC
–80
0
0.5
1.0
–80
1.5
2.0
2.5
3.0
3.5
0
0.5
1.5
1.0
2.0
2.5
3.5
Figure 34. Typical Output Driver Characteristics (ADSP-2186L)
Figure 32. Typical Output Driver Characteristics (ADSP-2184L)
80
80
VDDEXT = 3.3V @ +25ⴗC
VDDEXT = 3.3V @ +25ⴗC
VDDEXT = 3.6V @ –40 ⴗC
60
VDDEXT = 3.6V @ –40 ⴗC
60
VOH
VOH
40
SOURCE CURRENT – mA
SOURCE CURRENT – mA
3.0
SOURCE VOLTAGE – V
SOURCE VOLTAGE – V
20
VDDEXT = 3.0V @ +85ⴗC
0
VDDEXT = 3.0V @ +85ⴗC
–20
VDDEXT = 3.3V @ +25ⴗC
–40
40
20
VDDEXT = 3.0V @ +85ⴗC
0
VDDEXT = 3.0V @ +85ⴗC
–20
VDDEXT = 3.3V @ +25ⴗC
–40
VOL
VOL
–60
–60
VDDEXT = 3.6V @ –40ⴗC
VDDEXT = 3.6V @ –40ⴗC
–80
–80
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
4.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
SOURCE VOLTAGE – V
SOURCE VOLTAGE – V
Figure 33. Typical Output Driver Characteristics (ADSP-2185L)
Figure 35. Typical Output Driver Characteristics (ADSP-2187L)
Rev. C
|
Page 40 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
POWER-DOWN CURRENT
Figure 36 through Figure 39 show the typical power-down
supply current. Note that these graphs reflect ADSP-218xL
operation in lowest power mode. (See the “System Interface”
chapter of the ADSP-218x DSP Hardware Reference for details).
Current reflects device operating with no input loads.
10000
VDD = 3.6V
1000
VDD = 3.3V
100
10
CURRENT (LOG SCALE) – µA
CURRENT (LOG SCALE) – µA
10000
VDD = 3.3V
100
10
0
0
0
25
55
TEMPERATURE – °C
0
85
25
55
TEMPERATURE – °C
85
Figure 38. Typical Power-Down Current (ADSP-2186L)
Figure 36. Typical Power-Down Current (ADSP-2184L)
10000
1000
VDD = 3.6V
VDD = 3.3V
100
10
CURRENT (LOG SCALE) – µA
10000
CURRENT (LOG SCALE) – µA
VDD = 3.6V
1000
1000
VDD = 3.6V
VDD = 3.3V
VDD = 3.0V
100
10
0
0
0
25
55
TEMPERATURE – °C
0
85
85
Figure 39. Typical Power-Down Current (ADSP-2187L)
Figure 37. Typical Power-Down Current (ADSP-2185L)
Rev. C |
25
55
TEMPERATURE – °C
Page 41 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
CAPACITIVE LOADING – ADSP-2184L, ADSP-2186L
CAPACITIVE LOADING – ADSP-2185L, ADSP-2187L
Figure 40 and Figure 41 show the capacitive loading characteristics of the ADSP-2184L and ADSP-2186L.
Figure 42 and Figure 43 show the capacitive loading characteristics of the ADSP-2185L and ADSP-2187L.
18
25
T = 85ⴗC
VDD = 3.0V
T = 85ⴗC
VDD = 3.0V
15
RISE TIME (0.4V–2.4V) – ns
RISE TIME (0.4V–2.4V) – ns
20
15
10
5
12
9
6
0
0
0
40
80
120
160
180
200
0
50
100
CL – pF
Figure 40. Typical Output Rise Time vs. Load Capacitance
(at Maximum Ambient Operating Temperature)
250
12
VALID OUTPUT DELAY OR HOLD – ns
16
VALID OUTPUT DELAY OR HOLD – ns
200
Figure 42. Typical Output Rise Time vs. Load Capacitance
(at Maximum Ambient Operating Temperature)
18
14
12
10
8
6
4
2
NOMINAL
–2
–4
–6
150
CL – pF
0
50
100
150
200
250
10
8
6
4
2
NOMINAL
–2
–4
–6
CL – pF
Figure 41. Typical Output Valid Delay or Hold vs. Load Capacitance, CL
(at Maximum Ambient Operating Temperature)
Rev. C
|
Page 42 of 48 |
0
40
80
120
CL – pF
160
200
Figure 43. Typical Output Valid Delay or Hold vs. Load Capacitance, CL
(at Maximum Ambient Operating Temperature)
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
TEST CONDITIONS
REFERENCE
SIGNAL
Figure 44 shows voltage reference levels for all ac measurements
(except output disable/enable).
tMEASURED
tENA
tDIS
VOH
(MEASURED)
INPUT
OR
OUTPUT
1.5V
VOH
(MEASURED)
VOH (MEASURED) – 0.5V
2.0V
VOL (MEASURED) + 0.5V
1.0V
OUTPUT
1.5V
VOL
(MEASURED)
Figure 44. Voltage Reference Levels for AC Measurements (Except Output
Enable/Disable)
OUTPUT STARTS
DRIVING
OUTPUT STOPS
DRIVING
HIGH-IMPEDANCE STATE. TEST CONDITIONS CAUSE
THIS VOLTAGE LEVEL TO BE APPROXIMATELY 1.5V.
Output Disable Time
Output pins are considered to be disabled when they have
stopped driving and started a transition from the measured output high or low voltage to a high impedance state. The output
disable time (tDIS) is the difference of tMEASURED and tDECAY, as
shown in Figure 45. The time is the interval from when a reference signal reaches a high or low voltage level to when the
output voltages have changed by 0.5 V from the measured output high or low voltage.
Figure 45. Output Enable/Disable
IOL
TO
OUTPUT
PIN
The decay time, tDECAY, is dependent on the capacitive load, CL,
and the current load, iL, on the output pin. It can be approximated by the following equation:
from which
VOL
(MEASURED)
tDECAY
1.5V
50pF
C L × 0.5V
t DECAY = -----------------------iL
IOH
Figure 46. Equivalent Loading for AC Measurements (Including All Fixtures)
t DIS = t MEASURED – t DECAY
ENVIRONMENTAL CONDITIONS
is calculated. If multiple pins (such as the data bus) are disabled,
the measurement value is that of the last pin to stop driving.
Table 28. Thermal Resistance
Output Enable Time
Output pins are considered to be enabled when they have made
a transition from a high-impedance state to when they start
driving. The output enable time (tENA) is the interval from when
a reference signal reaches a high or low voltage level to when the
output has reached a specified high or low trip point, as shown
in Figure 45. If multiple pins (such as the data bus) are enabled,
the measurement value is that of the first pin to start driving.
Rev. C |
Rating Description1
Thermal Resistance (Caseto-Ambient)
Thermal Resistance
(Junction-to-Ambient)
Thermal Resistance
(Junction-to-Case)
1
Page 43 of 48 |
Symbol
θCA
LQFP
(°C/W)
48
BGA
(°C/W)
63.3
θJA
50
70.7
θJC
2
7.4
Where the ambient temperature rating (TAMB) is:
TAMB = TCASE – (PD × θCA)
TCASE = case temperature in °C
PD = power dissipation in W
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
LQFP PACKAGE PINOUT
The LQFP package pinout is shown in Table 29. Pin names in
bold text in the table replace the plain-text-named functions
when Mode C equals 1. A plus sign (+) separates two functions
when either function can be active for either major I/O mode.
Signals enclosed in brackets are state bits latched from the value
of the pin at the deassertion of RESET. The multiplexed pins
DT1/FO, TFS1/IRQ1, RFS1/IRQ0, and DR1/FI, are mode
selectable by setting Bit 10 (SPORT1 configure) of the System
Control Register. If Bit 10 = 1, these pins have serial port functionality. If Bit 10 = 0, these pins are the external interrupt and
flag pins. This bit is set to 1 by default, upon reset.
Table 29. LQFP Pin Assignments
Lead No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
Lead Name
A4/IAD3
A5/IAD4
GND
A6/IAD5
A7/IAD6
A8/IAD7
A9/IAD8
A10/IAD9
A11/IAD10
A12/IAD11
A13/IAD12
GND
CLKIN
XTAL
VDDEXT
CLKOUT
GND
VDDINT
WR
RD
BMS
DMS
PMS
IOMS
CMS
Lead No.
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Lead Name
IRQE + PF4
IRQL0 + PF5
GND
IRQL1 + PF6
IRQ2 + PF7
DT0
TFS0
RFS0
DR0
SCLK0
VDDEXT
DT1/FO
TFS1/IRQ1
RFS1/IRQ0
DR1/FI
GND
SCLK1
ERESET
RESET
EMS
EE
ECLK
ELOUT
ELIN
EINT
Lead No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
Lead Name
EBR
BR
EBG
BG
D0/IAD13
D1/IAD14
D2/IAD15
D3/IACK
VDDINT
GND
D4/IS
D5/IAL
D6/IRD
D7/IWR
D8
GND
VDDEXT
D9
D10
D11
GND
D12
D13
D14
D15
Mode D function available on ADSP-2187L only.
Rev. C
|
Page 44 of 48 |
January 2008
Lead No.
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Lead Name
D16
D17
D18
D19
GND
D20
D21
D22
D23
FL2
FL1
FL0
PF3 [Mode D1]
PF2 [Mode C]
VDDEXT
PWD
GND
PF1 [Mode B]
PF0 [Mode A]
BGH
PWDACK
A0
A1/IAD0
A2/IAD1
A3/IAD2
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
BGA PACKAGE PINOUT
The BGA package pinout is shown in Table 30. Pin names in
bold text in the table replace the plain text named functions
when Mode C equals 1. A plus sign (+) separates two functions
when either function can be active for either major I/O mode.
Signals enclosed in brackets are state bits latched from the value
of the pin at the deassertion of RESET. The multiplexed pins
DT1/FO, TFS1/IRQ1, RFS1/IRQ0, and DR1/FI, are mode
selectable by setting Bit 10 (SPORT1 configure) of the System
Control Register. If Bit 10 = 1, these pins have serial port functionality. If Bit 10 = 0, these pins are the external interrupt and
flag pins. This bit is set to 1 by default upon reset.
Table 30. BGA Pin Assignments
Ball No.
A01
A02
A03
A04
A05
A06
A07
A08
A09
A10
A11
A12
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
B12
C01
C02
C03
C04
C05
C06
C07
C08
C09
C10
C11
C12
1
Ball Name
A2/IAD1
A1/IAD0
GND
A0
NC
GND
NC
NC
NC
D22
GND
GND
A4/IAD3
A3/IAD2
GND
NC
NC
GND
VDDEXT
D23
D20
D18
D17
D16
PWDACK
A6/IAD5
RD
A5/IAD4
A7/IAD6
PWD
VDDEXT
D21
D19
D15
NC
D14
Ball No.
D01
D02
D03
D04
D05
D06
D07
D08
D09
D10
D11
D12
E01
E02
E03
E04
E05
E06
E07
E08
E09
E10
E11
E12
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F11
F12
Ball Name
NC
WR
NC
BGH
A9/IAD8
PF1 [MODE B]
PF2 [MODE C]
NC
D13
D12
NC
GND
VDDEXT
VDDEXT
A8/IAD7
FL0
PF0 [MODE A]
FL2
PF3 [MODE D1]
GND
GND
VDDEXT
GND
D10
A13/IAD12
NC
A12/IAD11
A11/IAD10
FL1
NC
NC
D7/IWR
D11
D8
NC
D9
Ball No.
G01
G02
G03
G04
G05
G06
G07
G08
G09
G10
G11
G12
H01
H02
H03
H04
H05
H06
H07
H08
H09
H10
H11
H12
J01
J02
J03
J04
J05
J06
J07
J08
J09
J10
J11
J12
Ball Name
XTAL
NC
GND
A10/IAD9
NC
NC
NC
D6/IRD
D5/IAL
NC
NC
D4/IS
CLKIN
GND
GND
GND
VDDINT
DT0
TFS0
D2/IAD15
D3/IACK
GND
NC
GND
CLKOUT
VDDINT
NC
VDDEXT
VDDEXT
SCLK0
D0/IAD13
RFS1/IRQ0
BG
D1/IAD14
VDDINT
VDDINT
Mode D function available on ADSP-2187L only.
Rev. C |
Page 45 of 48 |
January 2008
Ball No.
K01
K02
K03
K04
K05
K06
K07
K08
K09
K10
K11
K12
L01
L02
L03
L04
L05
L06
L07
L08
L09
L10
L11
L12
M01
M02
M03
M04
M05
M06
M07
M08
M09
M10
M11
M12
Ball Name
NC
NC
NC
BMS
DMS
RFS0
TFS1/IRQ1
SCLK1
ERESET
EBR
BR
EBG
IRQE + PF4
NC
IRQL1 + PF6
IOMS
GND
PMS
DR0
GND
RESET
ELIN
ELOUT
EINT
IRQL0 + PF5
IRQL2 + PF7
NC
CMS
GND
DT1/FO
DR1/FI
GND
NC
EMS
EE
ECLK
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
OUTLINE DIMENSIONS
A1 BALL
CORNER
10.10
10.00 SQ
9.90
12 11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
J
K
L
M
BALL A1
PAD CORNER
8.80
BSC SQ
0.80
BSC
TOP VIEW
BOTTOM VIEW
0.60 REF
DETAIL A
1.40
1.34
1.19
1.11
1.01
0.91
DETAIL A
0.33 NOM
0.28 MIN
COPLANARITY
0.12
*0.50
0.45
0.40
BALL DIAMETER
SEATING
PLANE
*COMPLIANT TO JEDEC STANDARDS MO-205-AC
WITH THE EXCEPTION TO BALL DIAMETER.
Figure 47. 144-Ball BGA [CSP_BGA] (BC-144-6)
16.00 BSC SQ
1.60 MAX
0.75
0.60
0.45
14.00 BSC SQ
12°
TYP
100
1
76
75
SEATING
PLANE
12.00
REF
TOP VIEW
(PINS DOWN)
1.45
1.40
1.35
0.15
0.05
0.20
0.09
7°
3.5°
0°
0.08
MAX LEAD
COPLANARITY
SEATING
PLANE
VIEW A
51
50
25
26
0.50 BSC
VIEW A
0.27
0.22
0.17
ROTATED 90° CCW
COMPLIANT TO JEDEC STANDARDS MS-026-BED
THE ACTUAL POSITION OF EACH LEAD IS WITHIN 0.08 OF ITS IDEAL
POSITION WHEN MEASURED IN THE LATERAL DIRECTION.
Figure 48. 100-Lead Low Profile Quad Flat Package [LQFP] (ST-100-1)
Rev. C
|
Page 46 of 48 |
January 2008
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
SURFACE MOUNT DESIGN
Table 31 is provided as an aid to PCB design to accommodate
BGA style surface mount packages. For industry-standard
design recommendations, refer to IPC-7351, Generic Requirements for Surface Mount Design and Land Pattern Standard.
Table 31. BGA Data for Use with Surface Mount Design
Package
144-Ball BGA
(BC-144-6)
Ball Attach Type
Solder Mask Defined
Solder Mask Opening
0.40 mm diameter
Ball Pad Size
0.50 mm diameter
ORDERING GUIDE
Model
ADSP-2184LBST-160
ADSP-2184LBSTZ-1602
ADSP-2185LKST-115
ADSP-2185LKST-133
ADSP-2185LKST-160
ADSP-2185LKST-210
ADSP-2185LKSTZ-2102
ADSP-2185LBST-115
ADSP-2185LBST-133
ADSP-2185LBSTZ-1332
ADSP-2185LBST-160
ADSP-2185LBSTZ-1602
ADSP-2185LBST-210
ADSP-2185LBSTZ-2102
ADSP-2186LKST-115
ADSP-2186LKST-115R3
ADSP-2186LKST-133
ADSP-2186LKSTZ-1332
ADSP-2186LBST-115
ADSP-2186LBSTZ-1152
ADSP-2186LBST-1602
ADSP-2186LBCA-160R3
ADSP-2187LKST-160
ADSP-2187LKSTZ-1602
ADSP-2187LKST-210
ADSP-2187LKSTZ-2102
ADSP-2187LBST-160
ADSP-2187LBSTZ-1602
ADSP-2187LBST-210
ADSP-2187LBSTZ-2102
Temperature
Range1
–40°C to +85°C
–40°C to +85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Instruction
Rate (MHz)
40
40
28.8
32.2
40
52.5
52.5
28.8
32.2
32.2
40
40
52.5
52.5
28.8
28.8
32.2
32.2
28.8
28.8
40
40
40
40
52.5
52.5
40
40
52.5
52.5
Package
Description
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
144-Ball BGA
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
100-Lead LQFP
1
Ranges shown represent ambient temperature.
Z = RoHS Compliant Part.
3
R = Tape and Reel.
2
Rev. C |
Page 47 of 48 |
January 2008
Package
Option
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
BC-144-6
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ST-100-1
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
©2008 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D00192-0-1/08(C)
Rev. C
|
Page 48 of 48 |
January 2008
工商网监
湘ICP备2023018690号
