Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
FEATURES
TI AM335x Application Processor
- Up to 1GHz ARM Cortex A8 MPU
- NEON SIMD Coprocessor
- 32 KB L1 Program Cache
- 32 KB L1 Data Cache
- 256 KB L2 Cache
- 64 KB RAM
- 176 KB boot ROM
- JTAG Emulation/Debug
AM335x Processor Choices
- AM3359 (PRU’s, 3D and EtherCat)
- AM3358 (PRU’s and 3D)
- AM3357 (PRU’s and EtherCat)
- AM3356 (PRU’s)
- AM3354 (3D)
- AM3352
Up To 1 GB DDR3 or 256 MB DDR2
CPU RAM
Up to 1 GB Parallel NAND FLASH
Up to 16 MB Serial NOR FLASH
(optional)
2 Programmable Real-time Units
(PRUs) – Processor Dependent
Integrated Power Management
SGX530 3D Graphics Accelerator –
Processor Dependent
Watchdog Timer
Real-time clock
Power Reset and Clock Management
(PRCM)
Crypto Hardware Accelerators (AES,
SHA, PKA, RNG)
STANDARD DDR3 SO-DIMM-204 INTERFACE
2 10/100/1000 Mbps EMACs
24-bit WXGA LCD Interface
Touch Screen Controller
8 Channel, 12-bit SAR ADC
2 CAN Interfaces
6 UARTs
2 USB Ports
2 4-Channel McASPs
3 MMC/SD/SDIO
2 SPI, 2 I2C, GPIO
eHRPWM, eQEP
Single 3.3V to 5.0V Input Power Supply
APPLICATIONS
Embedded Instrumentation
Industrial Automation
Industrial Instrumentation
Medical Instrumentation
Weighing Scales
Closed Loop Motor Control
BENEFITS
Rapid Development / Deployment
Multiple Connectivity and Interface
Options
Rich User Interfaces
High System Integration
High Level OS Support
- Linux Kernel
- QNX
- Windows CE Ready
DESCRIPTION
The MitySOM-335x series of highly configurable, small form-factor processor cards
features one of Texas Instruments Sitara AM335x Processors. The module includes
NAND FLASH and DDR2 or DDR3 RAM memory subsystems. A MitySOM-335x
provides a complete and flexible CPU infrastructure for highly integrated embedded
systems.
1
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
The onboard AM335x processor provides Cortex-A8 32-bit RISC processor with a
NEON SIMD coprocessor. This MPU is capable of running a rich set of real-time
operating systems containing software applications programming interfaces (APIs)
expected by modern system designers. The ARM architecture supports several operating
systems, including Linux, QNX, and Windows CE.
In addition to the Cortex-A8, the AM335x family also offers available dual
Programmable Real-Time Units (PRUs) when using the AM3356, AM3357, AM3358 or
AM3359 processors. These PRUs are 200MHz RISC processors that run independently
of the main Cortex-A8 CPU and have access to all the on-chip peripherals as well as all
external memory. These can be used for any purpose; typical applications include the
implementation of custom, industrial serial or Ethernet protocols such as PROFIBUS or
EtherCAT. In addition, the PRUs can continue to run while the core CPU is in sleep
mode in order to monitor for system wakeup events.
Figure 1 MitySOM-335x Block Diagram
Figure 1 provides a top level block diagram of the MitySOM-335x processor card. As
shown in the figure, the primary interface to the MitySOM-335x is through a standard
DDR3 SO-DIMM-204 card edge interface. The interface provides power, synchronous
serial connectivity, and many other interfaces provided by the Sitara processor. Details
of the SO-DIMM-204 connector interface are included in the SO-DIMM-204 Interface
Description, below.
2
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
MitySOM-335x Onboard DDR Memory Options
DDR2 Memory Option
The AM335x processor includes one dedicated 16 bit DDR SDRAM memory interface.
The MitySOM-335x can include up to 256 MB of DDR2 RAM integrated on board the
module. The memory bus interface is capable of burst transfer rates of 800 MB / second.
DDR3 Memory Option
The AM335x processor includes one dedicated 16 bit DDR SDRAM memory interface.
The MitySOM-335x includes up to 1 GB of DDR3 RAM integrated on board the module.
The memory bus interface is capable of burst transfer rates of 1200 MB / second.
MitySOM-335x Onboard Storage Memory
NAND FLASH (Optional)
Up to 1GB of on-board NAND FLASH memory is connected to the AM335x processor
using the general purpose memory controller (GPMC) bus. The FLASH memory is 8
bits wide and is connected to the first chip select line of the GPMC (CSN0 – AM335x
Ball V6). The FLASH memory is typically used to store the following types of data:
-
Bootloaders
ARM Linux / Windows CE / QNX embedded root file-system
runtime ARM software
runtime application data (non-volatile storage)
The GPMC bus is also accessible on the SO-DIMM-204 connector. It can be used to
access external memories such as SDRAM, SRAM, NOR flash, NAND flash, or
memory-mapped ASICs and FPGAs. The inteface is a maximum of 16-bits wide, but can
also be used for 8-bit access.
NOR FLASH (Optional)
Up to 16 MB of on-board NOR FLASH memory is connected to the AM335x using the
Serial Peripheral Interface (SPI1 NOR CS0 – AM335x Ball C12). The AM335x provides
up to 2 SPI interfaces with both interfaces available on the SO-DIMM connector.
Configuration EEPROM
The MitySOM-335x contains a 256 x 8-bit EEPROM that is used to hold configuration
data for the module. The EEPROM is connected to the AM335x using the I2C1 interface
at address 1010XXXb (0x50 to 0x57).
3
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
External Interfaces
The AM335x makes extensive use of functional pin multiplexing to provide a highly
configurable device that can be tailored to a multitude of applications. A list of the
interfaces/functions that are available to the user is provided below.
2 Universal Serial Bus (USB) 2.0 High-Speed On the Go ports
2 Controller-Area Network (CAN) ports
2 Multichannel Audio Serial Ports (McASP)
2 Industrial Gigabit Ethernet MAC’s (10/100/1000 Mbps)
3 MMC/SD/SDIO ports
8 input, 12 bit A/D Converter
LCD Controller
3 Enhanced Capture (eCAP) Modules
3 Enhanced High-Resolution PWM (eHRPWM) modules
3 32-bit Enhanced Quadrature Pulse Encoder (eQPE) modules
4 Timers
2 Serial Peripheral (SPI) ports
o SPI Port 1 is also connected to the on-board NOR FLASH memory
6 Universal Asynchronous Receive/Transmit (UART) ports
2 Inter-Integrated Circuit (I2C) ports (I2C1 & I2C0)
o I2C Port 1 is also connected to the on-board EEPROM and PMIC
o I2C Port 0 is not used by any on-board components
General Purpose Memory Controller (GPMC) interface
o A subset of this interface is also connected to the on-board NAND FLASH
JTAG/Debugger port
Additionally, most of the pin multiplexed signals can be configured as general purpose
I/O signals with interrupt capability.
4
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
Software and Application Development Support
Users of the AM335x are encouraged to develop applications using the MitySOM-335x
software development kit provided by Critical Link LLC. The SDK is an expansion of
the TI platform support package for the AM335x and includes a Linux root
filesystem/distribution and compatible gcc compiler tool-chain with debugger.
Growth Options
The AM335x has been designed to support several upgrade options. These options
include various speed grades, memory configurations, and operating temperature
specifications including commercial and industrial temperature ranges. The available
options are listed in the section below containing ordering information. For additional
ordering information and details regarding these options, or to inquire about a particular
configuration not listed below, please contact a Critical Link sales representative.
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
If Military/Aerospace specified cards are
required, please contact the Critical Link
Sales Office or unit Distributors for
availability and specifications.
Maximum Supply Voltage, Vcc
Storage Temperature Range
Commercial
Temperature Range
Industrial Temperature
Range
o
o
o
o
0 C to 70 C
-40 C to 85 C
5.2 V
o
o
-65 C to 80 C
SO-DIMM-204 Interface Description
The primary interface connector for the MitySOM-335x is the SO-DIMM card edge
interface which contains 4 classes of signals:
Power (PWR)
Dedicated signals mapped to the on-board Power Management device (PM)
Dedicated signals mapped to the AM335xZCZ device (335D)
Multi-function signals mapped to the AM335xZCZ device (335M)
Table 1 contains a summary of the MitySOM-335x pin mapping.
Note that not all signals/mux options are available with all AM335x processor options
(i.e. PRU’s) and the I2C1 and I2C2 interface signals/mux options cannot be changed as
they are used for dedicated functions on the MitySOM-335x module.
5
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
Table 1 SO-DIMM Pin-Out
PIN
Class
Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
212
222
232
242
252
262
272
282
29
30
31
321
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
335M
PWR
335M
PM
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
GND
GND
GND
GND
VIO_3P3
VIO_1P8
VIO_3P3
VIO_1P8
VIO_3P3
VIO_1P8
VIO_3P3
VIO_1P8
LCD_DATA0
LED_RTN
LCD_DATA1
PWR_ON
PMIC
Pin
33
AM3359
Pin
R1
R2
-
Power
Domain
3.3V
3.3V
3.3V
Signal
Option 0
Signal
Option 1
Signal
Option 2
Signal
Option 3
lcd_data0
gpmc_a0
pr1_mii_mt0_clk
lcd_data1
gpmc_a1
Signal
Option 4
Signal
Option 5
Signal
Option 6
Signal
Option 7
ehrpwm2A
pr1_pru1_pru_r30_0
pr1_pru1_pru_r31_0
gpio2_6
pr1_mii0_txen
ehrpwm2B
pr1_pru1_pru_r30_1
pr1_pru1_pru_r31_1
gpio2_7
pr1_pru1_pru_r30_2
pr1_pru1_pru_r31_2
gpio2_8
33
335M
LCD_DATA2
-
R3
3.3V
lcd_data2
gpmc_a2
pr1_mii0_txd3
ehrpwm2_tripzone
_input
34
35
36
37
38
39
40
41
42
43
44
45
46
PWR
335M
PM
PWR
PWR
335M
PWR
335M
PWR
335M
PWR
335M
PWR
VBACKUP
LCD_DATA3
PMIC_SLEEP
GND
GND
LCD_DATA4
GND
LCD_DATA5
GND
LCD_DATA6
VDDS_HV2
LCD_DATA7
VDDS_HV2
27
37
-
R4
T1
T2
T3
P10
T4
P11
3.3V
3.3V
3.3V
3.3V
3.3V
VDDSHV2
3.3V
VDDSHV2
lcd_data3
gpmc_a3
pr1_mii0_txd2
ehrpwm0_synco
pr1_pru1_pru_r30_3
pr1_pru1_pru_r31_3
gpio2_9
lcd_data4
gpmc_a4
pr1_mii0_txd1
eQEP2A_in
pr1_pru1_pru_r30_4
pr1_pru1_pru_r31_4
gpio2_10
lcd_data5
gpmc_a5
pr1_mii0_txd0
eQEP2B_in
pr1_pru1_pru_r30_5
pr1_pru1_pru_r31_5
gpio2_11
lcd_data6
VDDSHV2
lcd_data7
VDDSHV2
gpmc_a6
pr1_edio_data_in6
eQEP2_index
pr1_edio_data_out6
pr1_pru1_pru_r30_6
pr1_pru1_pru_r31_6
gpio2_12
gpmc_a7
pr1_edio_data_in7
eQEP2_strobe
pr1_edio_data_out7
pr1_pru1_pru_r30_7
pr1_pru1_pru_r31_7
gpio2_13
47
335M
LCD_DATA8
-
U1
3.3V
lcd_data8
gpmc_a12
ehrpwm1_tripzone_i
nput
mcasp0_aclkx
uart5_txd
pr1_mii0_rxd3
uart2_ctsn
gpio2_14
48
49
50
51
PWR
335M
PWR
335M
VDDS_HV4
LCD_DATA9
VDDS_HV4
LCD_DATA10
-
H14
U2
J14
U3
VDDSHV4
3.3V
VDDSHV4
3.3V
VDDSHV4
lcd_data9
VDDSHV4
lcd_data10
gpmc_a13
ehrpwm0_synco
mcasp0_fsx
uart5_rxd
pr1_mii0_rxd2
uart2_rtsn
gpio2_15
gpmc_a14
ehrpwm1A
mcasp0_axr0
pr1_mii0_rxd1
uart3_ctsn
gpio2_16
6
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
PIN
Class
Signal
52
53
54
55
56
57
PM
335M
PWR
PWR
PWR
335M
PMIC_INT_N
LCD_DATA11
GND
GND
GND
LCD_DATA12
PMIC
Pin
45
-
AM3359
Pin
U4
V2
Power
Domain
3.3V
3.3V
3.3V
Signal
Option 0
Signal
Option 1
Signal
Option 2
Signal
Option 3
Signal
Option 4
Signal
Option 5
Signal
Option 6
Signal
Option 7
lcd_data11
gpmc_a15
ehrpwm1B
mcasp0_ahclkr
mcasp0_axr2
pr1_mii0_rxd0
uart3_rtsn
gpio2_17
58
335M
GPMC_A0
-
R13
3.3V
lcd_data12
gpmc_a16
eQEP1A_in
mcasp0_aclkr
mcasp0_axr2
pr1_mii0_rxlink
gpmc_a0
gmii2_txen
rgmii2_tctl
rmii2_txen
gpmc_a16
pr1_mii_mt1_clk
lcd_data13
gpmc_a1
lcd_data14
gpmc_a2
lcd_data15
gpmc_a3
gpmc_a17
gmii2_rxdv
gpmc_a18
gmii2_txd3
gpmc_a19
gmii2_txd2
eQEP1B_in
rgmii2_rctl
eQEP1_index
rgmii2_td3
eQEP1_strobe
rgmii2_td2
mcasp0_fsr
mmc2_dat0
mcasp0_axr1
mmc2_dat1
mcasp0_ahclkx
mmc2_dat2
mcasp0_axr3
gpmc_a17
uart5_rxd
gpmc_a18
mcasp0_axr3
gpmc_a19
lcd_pclk
gpmc_a10
pr1_mii0_crs
pr1_edio_data_in4
pr1_edio_data_out4
gpmc_a4
lcd_vsync
gpmc_a5
lcd_hsync
gpmc_a6
lcd_ac_bias
_en
gpmc_a7
gmii2_txd1
gpmc_a8
gmii2_txd0
gpmc_a9
gmii2_txclk
rgmii2_td1
gpmc_a13
rgmii2_td0
rgmii2_tclk
rmii2_txd1
pr1_edio_data_in2
rmii2_txd0
pr1_edio_data_in3
mmc2_dat4
gpmc_a20
pr1_edio_data_out2
gpmc_a21
pr1_edio_data_out3
gpmc_a22
gpmc_a11
pr1_mii1_crs
pr1_edio_data_in5
pr1_edio_data_out5
gmii2_rxclk
rgmii2_rclk
mmc2_dat5
gpmc_a23
pr1_mii0_rxer
pr1_mii1_txd3
pr1_mii_mr0_clk
pr1_mii1_txd2
pr1_mii0_rxdv
pr1_mii1_txd1
pr1_pru1_pru_r30_1
0
pr1_mii1_txd0
pr1_pru1_pru_r30_8
pr1_mii1_rxd3
pr1_pru1_pru_r30_9
pr1_mii1_rxd2
pr1_pru1_pru_r30_1
1
pr1_mii1_rxd1
uart4_ctsn
ehrpwm1_tripzone_i
nput
uart4_rtsn
ehrpwm0_synco
uart5_ctsn
ehrpwm1A
uart5_rtsn
ehrpwm1B
pr1_pru1_pru_r31_1
0
eQEP1A_in
pr1_pru1_pru_r31_8
eQEP1B_in
pr1_pru1_pru_r31_9
eQEP1_index
pr1_pru1_pru_r31_1
1
eQEP1_strobe
59
60
61
62
63
64
335M
335M
335M
335M
335M
335M
LCD_DATA13
GPMC_A1
LCD_DATA14
GPMC_A2
LCD_DATA15
GPMC_A3
-
V3
V14
V4
U14
T5
T14
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
65
335M
LCD_PCLK
-
V5
3.3V
66
67
68
69
70
335M
335M
335M
335M
335M
-
R14
U5
V15
R5
U15
3.3V
3.3V
3.3V
3.3V
3.3V
71
335M
-
R6
3.3V
72
73
74
75
76
77
335M
PWR
PWR
335D
335M
335D
GPMC_A4
LCD_VSYNC
GPMC_A5
LCD_HSYNC
GPMC_A6
LCD_AC_BIAS_E
N
GPMC_A7
GND
GND
GPMC_AD0
GPMC_A8
GPMC_AD1
-
T15
U7
V16
V7
3.3V
3.3V
3.3V
3.3V
gpmc_ad0
gpmc_a8
gpmc_ad1
gmii2_rxd3
rgmii2_rd3
mmc2_dat6
gpmc_a24
pr1_mii1_rxd0
mcasp0_aclkx
gpio1_24
78
335M
GPMC_A9
-
U16
79
80
81
82
83
335D
335M
335D
335M
335D
GPMC_AD2
GPMC_A10
GPMC_AD3
GPMC_A11
GPMC_AD4
-
R8
T16
T8
V17
U8
3.3V
gpmc_a9
gmii2_rxd2
rgmii2_rd2
mmc2_dat7/rmii2_
crs_dv3
gpmc_a25
pr1_mii_mr1_clk
mcasp0_fsx
gpio1_25
3.3V
3.3V
3.3V
3.3V
3.3V
gpmc_ad2
gpmc_a10
gpmc_ad3
gpmc_a11
gpmc_ad4
gmii2_rxd1
rgmii2_rd1
rmii2_rxd1
gpmc_a26
pr1_mii1_rxdv
mcasp0_axr0
gpio1_26
gmii2_rxd0
rgmii2_rd0
rmii2_rxd0
gpmc_a27
pr1_mii1_rxer
mcasp0_axr1
gpio1_27
lcd_memor
y_clk
gpmc_wait1
mmc2_clk
pr1_mii1_crs
pr1_mdio_mdclk
mcasp0_fsr
gpio2_1
EMU4
gpio0_22
gpio2_0
gpio0_23
84
335M
GPMC_CLK
-
V12
VDDSHV2
gpmc_clk
85
335D
-
V8
3.3V
86
335D
-
T6
3.3V
87
335D
-
R9
3.3V
88
335D
-
R7
3.3V
89
335D
-
T9
3.3V
90
335D
-
T7
3.3V
gpmc_ad5
gpmc_be0n
_cle
gpmc_ad6
gpmc_advn
_ale
gpmc_ad7
gpmc_oen_
ren
91
92
93
94
95
96
PWR
PWR
335M
335M
335M
GPMC_AD5
GPMC_BEN0_CL
E
GPMC_AD6
GPMC_ADVN_A
LE
GPMC_AD7
GPMC_OEN_RE_
N
GND
GND
GPMC_AD8
GPMC_CSN3
GPMC_AD9
No Connect
-
U10
T13
T10
VDDSHV2
VDDSHV2
VDDSHV2
gpmc_ad8
gpmc_csn3
gpmc_ad9
lcd_data23
gpmc_a33
lcd_data22
mmc1_dat0
rmii2_crs_dv
mmc1_dat1
mmc2_dat4
mmc2_cmd
mmc2_dat5
ehrpwm2A
pr1_mii0_crs
ehrpwm2B
pr1_mii_mt0_clk
pr1_mdio_data
pr1_mii0_col
97
335M
GPMC_AD10
-
T11
VDDSHV2
gpmc_ad10
lcd_data21
mmc1_dat2
mmc2_dat6
ehrpwm2_tripzone_i
nput
pr1_mii0_txen
98
335D
GPMC_WE_N
-
U6
3.3V
gpmc_wen
7
gpio0_8
gpio1_16
gpio0_9
gpio1_17
gpio0_10
gpio1_18
gpio0_11
gpio1_19
gpio2_24
gpio1_20
gpio2_22
gpio1_21
gpio2_23
gpio1_22
gpio2_25
gpio1_23
gpio0_26
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
PIN
Class
Signal
99
100
335M
335D
GPMC_AD11
GPMC_WAIT0
PMIC
Pin
-
AM3359
Pin
U12
T17
Power
Domain
VDDSHV2
3.3V
Signal
Option 0
gpmc_ad11
gpmc_wait0
Signal
Option 1
lcd_data20
Signal
Option 2
mmc1_dat3
Signal
Option 3
mmc2_dat7
Signal
Option 4
ehrpwm0_synco
Signal
Option 5
pr1_mii0_txd3
101
335M
GPMC_AD12
-
T12
VDDSHV2
gpmc_ad12
lcd_data19
mmc1_dat4
mmc2_dat0
eQEP2A_in
pr1_mii0_txd2
102
335M
GPMC_BEN1
-
U18
3.3V
gpmc_be1n
gmii2_col
gpmc_csn6
mmc2_dat3
gpmc_dir
pr1_mii1_rxlink
103
335M
GPMC_AD13
-
R12
VDDSHV2
gpmc_ad13
lcd_data18
mmc1_dat5
mmc2_dat1
eQEP2B_in
pr1_mii0_txd1
104
335D
GPMC_WP_N
-
U17
3.3V
gpmc_wpn
105
335M
GPMC_AD14
-
V13
VDDSHV2
gpmc_ad14
lcd_data17
mmc1_dat6
mmc2_dat2
eQEP2_index
pr1_mii0_txd0
pr1_pru0_pru_r31_1
4
gpio1_14
gpmc_ad15
lcd_data16
mmc1_dat7
mmc2_dat3
eQEP2_strobe
pr1_ecap0_ecap_capi
n_apwm_o
pr1_pru0_pru_r31_1
5
gpio1_15
pr1_pru1_pru_r31_1
3
mcasp0_axr3
pr1_pru1_pru_r31_1
2
mmc2_clk
106
107
Signal
Option 6
pr1_pru0_pru_r30_1
4
mcasp0_aclkr
pr1_pru0_pru_r30_1
5
Signal
Option 7
gpio0_27
gpio1_12
gpio1_28
gpio1_13
No Connect
335M
GPMC_AD15
-
U13
VDDSHV2
108
109
110
PWR
PWR
No Connect
GND
GND
-
-
-
111
335M
GPMC_CSN2
-
V9
3.3V
gpmc_csn2
gpmc_be1n
mmc1_cmd
pr1_edio_data_in7
pr1_edio_data_out7
112
335M
GMII1_RXD0
-
M16
3.3V
gmii1_rxd0
rmii1_rxd0
rgmii1_rd0
mcasp1_ahclkx
mcasp1_ahclkr
113
335M
GPMC_CSN1
-
U9
3.3V
gpmc_csn1
gpmc_clk
mmc1_clk
pr1_edio_data_in6
pr1_edio_data_out6
114
335M
GMII1_RXD1
-
L15
3.3V
rmii1_rxd1
rgmii1_rd1
mcasp1_axr3
mcasp1_fsr
115
335D
USB0_VBUS
-
P15
116
117
118
335M
335D
335M
GMII1_RXD2
USB0_ID
GMII1_RXD3
-
L16
P16
L17
uart3_txd
rgmii1_rd2
mmc0_dat4
mmc1_dat3
uart1_rin
mcasp0_axr1
gpio2_19
uart3_rxd
rgmii1_rd3
mmc0_dat5
mmc1_dat2
uart1_dtrn
mcasp0_axr0
gpio2_18
119
335D
USB1_VBUS
-
T18
120
121
335M
335D
GMII1_RXCLK
USB1_DP
-
L18
R17
3.3V
gmii1_rxd1
USB0_VB
US
gmii1_rxd2
USB0_ID
gmii1_rxd3
USB1_VB
US
gmii1_rxclk
USB1_DP
pr1_pru1_pru_r30_1
3
mcasp1_aclkr
pr1_pru1_pru_r30_1
2
eQEP0_strobe
uart2_txd
rgmii1_rclk
mmc0_dat6
mmc1_dat1
uart1_dsrn
mcasp0_fsx
gpio3_10
122
335M
GMII1_RXDV
-
J17
3.3V
lcd_memor
y_clk
rgmii1_rctl
uart5_txd
mcasp1_aclkx
mmc2_dat0
mcasp0_aclkr
gpio3_4
123
124
125
126
127
128
129
130
131
132
133
134
135
136
335D
-
R18
335D
335M
PWR
335M
335D
335M
335D
335M
335D
335M
335D
335M
USB1_DM
No Connect
USB1_CE
GMII1_TXCLK
GND
GMII1_TXD0
USB1_ID
GMII1_TXD1
USB0_DM
GMII1_TXD2
USB0_DP
GMII1_TXD3
USB0_CE
GMII1_TXEN
-
P18
K18
K17
P17
K16
N18
K15
N17
J18
M15
J16
uart2_rxd
rgmii1_tclk
mmc0_dat7
mmc1_dat0
uart1_dcdn
mcasp0_aclkx
gpio3_9
rmii1_txd0
rgmii1_td0
mcasp1_axr2
mcasp1_aclkr
eQEP0B_in
mmc1_clk
gpio0_28
rmii1_txd1
rgmii1_td1
mcasp1_fsr
mcasp1_axr1
eQEP0A_in
mmc1_cmd
gpio0_21
dcan0_rx
rgmii1_td2
uart4_txd
mcasp1_axr0
mmc2_dat2
mcasp0_ahclkx
gpio0_17
dcan0_tx
rgmii1_td3
uart4_rxd
mcasp1_fsx
mmc2_dat1
mcasp0_fsr
gpio0_16
rmii1_txen
rgmii1_tctl
timer4
mcasp1_axr0
eQEP0_index
mmc2_cmd
137
335M
USB1_DRVVBUS
-
F15
3.3V
138
335M
GMII1_COL
-
H16
3.3V
gmii1_col
USB0_DR
VVBUS
139
140
141
142
143
335M
335M
335M
USB0_DRVVBUS
No Connect
MDC
No Connect
MDIO
3.3V
3.3V
gmii1_rxdv
gpio1_31
gpio2_21
gpio1_30
gpio2_20
USB1_DM
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
USB1_CE
gmii1_txclk
gmii1_txd0
USB1_ID
gmii1_txd1
USB0_DM
gmii1_txd2
USB0_DP
gmii1_txd3
USB0_CE
gmii1_txen
USB1_DR
VVBUS
gpio3_3
gpio3_13
rmii2_refcl
k
spi1_sclk
uart5_rxd
mcasp1_axr2
mmc2_dat3
mcasp0_axr2
gpio3_0
-
F16
3.3V
gpio0_18
-
M18
3.3V
mdio_clk
timer5
uart5_txd
uart3_rtsn
mmc0_sdwp
mmc1_clk
mmc2_clk
gpio0_1
-
M17
3.3V
mdio_data
timer6
uart5_rxd
uart3_ctsn
mmc0_sdcd
mmc1_cmd
mmc2_cmd
gpio0_0
8
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
PIN
Class
Signal
PMIC
Pin
AM3359
Pin
Power
Domain
Signal
Option 0
mcasp0_axr
1
rmii1_refcl
k
144
335M
MCASP0_AXR1
-
D13
3.3V
145
335M
RMII1_REFCLK
-
H18
3.3V
146
147
148
149
PWR
335D
335M
335D
GND
I2C1_SDA
MCASP0_FSR
I2C1_SCL
-
H17
C13
J15
3.3V
3.3V
3.3V
150
335M
MCASP0_ACLKR
-
B12
3.3V
151
335M
MMC0_CMD
-
G18
VDDSHV4
mmc0_cmd
ehrpwm0A
I2C1_SDA
mcasp0_fsr
I2C1_SCL
mcasp0_acl
kr
Signal
Option 1
eQEP0_ind
ex
xdma_event
_intr2
Signal
Option 2
Signal
Option 3
Signal
Option 4
Signal
Option 5
Signal
Option 6
Signal
Option 7
mcasp1_axr0
EMU3
pr1_pru0_pru_r30_6
pr1_pru0_pru_r31_6
gpio3_20
spi1_cs0
uart5_txd
mcasp1_axr3
mmc0_pow
mcasp1_ahclkx
gpio0_29
eQEP0B_in
mcasp0_axr3
mcasp1_fsx
EMU2
pr1_pru0_pru_r30_5
pr1_pru0_pru_r31_5
gpio3_19
eQEP0A_in
mcasp0_axr2
mcasp1_aclkx
mmc0_sdwp
pr1_pru0_pru_r30_4
pr1_pru0_pru_r31_4
gpio3_18
gpmc_a25
uart3_rtsn
uart2_txd
dcan1_rx
pr1_pru0_pru_r30_1
3
pr1_pru0_pru_r31_1
3
gpio2_31
152
335M
MCASP0_ACLKX
-
A13
3.3V
mcasp0_acl
kx
spi1_sclk
mmc0_sdcd
pr1_pru0_pru_r30_0
pr1_pru0_pru_r31_0
gpio3_14
153
335M
MMC0_CLK
-
G17
VDDSHV4
mmc0_clk
gpmc_a24
uart3_ctsn
uart2_rxd
dcan1_tx
pr1_pru0_pru_r30_1
2
pr1_pru0_pru_r31_1
2
gpio2_30
335M
MCASP0_AHCLK
X
3.3V
mcasp0_ahc
lkx
eQEP0_stro
be
mcasp0_axr3
mcasp1_axr1
EMU4
pr1_pru0_pru_r30_7
pr1_pru0_pru_r31_7
gpio3_21
pr1_pru0_pru_r31_1
1
gpio2_29
154
-
A14
gpmc_a23
uart5_rtsn
uart3_txd
uart1_rin
pr1_pru0_pru_r30_1
1
gpmc_a22
uart5_ctsn
uart3_rxd
uart1_dtrn
pr1_pru0_pru_r30_1
0
pr1_pru0_pru_r31_1
0
gpio2_28
gpmc_a21
gpio3_7
gpmc_a20
uart4_rtsn
timer6
uart1_dsrn
pr1_pru0_pru_r30_9
pr1_pru0_pru_r31_9
gpio2_27
uart4_ctsn
timer5
uart1_dcdn
pr1_pru0_pru_r30_8
pr1_pru0_pru_r31_8
gpio2_26
gpio3_8
uart0_ctsn
TCK
uart0_rtsn
TDI
uart4_rxd
dcan1_tx
I2C1_SDA4
spi1_d0
timer7
pr1_edc_sync0_out
gpio1_8
uart4_txd
dcan1_rx
I2C1_SCL4
spi1_d1
spi1_cs0
pr1_edc_sync1_out
gpio1_9
spi1_cs1
dcan0_rx
I2C2_SCL4
eCAP1_in_PWM1_o
ut
pr1_pru1_pru_r30_1
5
pr1_pru1_pru_r31_1
5
gpio1_11
spi1_cs0
dcan0_tx
I2C2_SDA4
eCAP2_in_PWM2_o
ut
pr1_pru1_pru_r30_1
4
pr1_pru1_pru_r31_1
4
gpio1_10
mmc1_sdw
p
dcan1_tx
I2C1_SDA4
pr1_uart0_rxd
pr1_pru1_pru_r31_1
6
gpio0_14
mmc2_sdw
p
dcan1_rx
I2C1_SCL4
pr1_uart0_txd
pr1_pru0_pru_r31_1
6
gpio0_15
timer4
uart2_ctsn
eCAP2_in_PWM2
_out
gpio3_5
timer7
uart2_rtsn
eCAP1_in_PWM1
_out
gpio3_6
uart2_txd
I2C2_SCL4
ehrpwm0B
155
335M
MMC0_DAT0
-
G16
VDDSHV4
mmc0_dat0
156
335D
EXTINT_N
-
B18
3.3V
nNMI
157
335M
MMC0_DAT1
-
G15
VDDSHV4
mmc0_dat1
nRESETIN
_OUT
mmc0_dat2
EMU0
mmc0_dat3
EMU1
158
335D
WARMRST_N
-
A10
3.3V
159
160
161
162
163
164
165
166
167
168
335M
335M
335M
335M
PWR
PWR
335M
335D
335M
335D
MMC0_DAT2
EMU0
MMC0_DAT3
EMU1
GND
GND
UART0_CTSN
TCK
UART0_RTSN
TDI
-
F18
C14
F17
B14
E18
A12
E17
B11
VDDSHV4
3.3V
VDDSHV4
3.3V
3.3V
3.3V
3.3V
3.3V
169
335M
UART0_TXD
-
E16
3.3V
uart0_txd
170
335D
TDO
-
A11
3.3V
TDO
171
335M
UART0_RXD
-
E15
3.3V
uart0_rxd
172
335D
TMS
-
C11
3.3V
TMS
173
335M
UART1_RXD
-
D16
3.3V
uart1_rxd
174
335D
TRSTN
-
B10
3.3V
nTRST
175
335M
UART1_TXD
-
D15
3.3V
uart1_txd
176
PWR
VREFN
-
A9
1.8V
VREFN
177
335M
I2C0_SDA
-
C17
3.3V
I2C0_SDA
178
PWR
VREFP
-
B9
1.8V
VREFP
179
335M
I2C0_SCL
-
C16
3.3V
I2C0_SCL
180
335D
EXT_WAKEUP
-
C5
1.8V
EXT_WAK
EUP
181
182
183
PWR
PWR
335M
GND
GND
SPI0_D0
-
B17
3.3V
spi0_d0
9
pr1_uart0_rts_n
pr1_edio_latch_in
EMU3
gpio0_3
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
PIN
Class
Signal
184
335D
AIN0
PMIC
Pin
-
AM3359
Pin
B6
Power
Domain
1.8V
Signal
Option 0
AIN0
Signal
Option 1
Signal
Option 2
Signal
Option 3
Signal
Option 4
Signal
Option 5
Signal
Option 6
Signal
Option 7
185
335M
SPI0_D1
-
B16
3.3V
spi0_d1
mmc1_sdw
p
I2C1_SDA4
ehrpwm0_tripzone
_input
186
187
188
335D
335M
335D
AIN1
SPI0_SCLK
AIN2
-
C7
A17
B7
1.8V
3.3V
1.8V
pr1_uart0_rxd
pr1_edio_data_in0
pr1_edio_data_out0
gpio0_4
AIN1
spi0_sclk
AIN2
uart2_rxd
I2C2_SDA4
ehrpwm0A
pr1_uart0_cts_n
pr1_edio_sof
EMU2
gpio0_2
uart3_rxd
eCAP1_in_PWM1_o
ut
mmc0_pow
xdma_event_intr2
mmc0_sdcd
EMU4
gpio0_6
mmc2_sdw
p
I2C1_SCL4
ehrpwm0_synci
pr1_uart0_txd
pr1_edio_data_in1
pr1_edio_data_out1
gpio0_5
xdma_event
_intr1
tclkin
clkout2
timer7
pr1_pru0_pru_r31_1
6
EMU3
gpio0_20
xdma_event
_intr0
timer4
clkout1
spi1_cs1
pr1_pru1_pru_r31_1
6
EMU2
gpio0_19
189
335M
SPI0_CS1
-
C15
3.3V
spi0_cs1
190
335D
AIN3
-
A7
1.8V
AIN3
191
335M
SPI0_CS0
-
A16
3.3V
spi0_cs0
192
193
194
195
196
197
198
199
200
335D
335D
335D
335D
335D
335D
335D
PWR
PWR
-
C8
C18
B8
B13
A8
D12
C9
-
1.8V
3.3V
1.8V
3.3V
1.8V
3.3V
1.8V
-
AIN4
spi1_sclk
AIN5
spi1_d0
AIN6
spi1_d1
AIN7
201
335M
-
D14
3.3V
202
PWR
-
-
-
203
335M
-
A15
3.3V
204
PWR
AIN4
SPI1_SCLK
AIN5
SPI1_D0_MOSI
AIN6
SPI1_D1_MISO
AIN7
GND
GND
XDMA_EVENT_I
NTR1
AGND
XDMA_EVENT_I
NTR0
AGND
-
-
-
Note 1: The PowerOn pin (32) has a pull-up resistor on the module so it can be left floating if user control is not desired.
Note 2: Please reference Table 2 for information on the maximum current supply of these voltage outputs.
Note 3: These signal mux options are only available in Revision 2.0 or higher AM335x Silicon.
Note 4: I2C1 and I2C2 are used by devices on the module and therefore should not be muxed to other AM335x pins. The Power Management IC (PMIC) on the
all MitySOM-335x modules utilize I2C1 at address 0x12 and I2C2 at address 0x2D.
10
Copyright © 2018, Critical Link LLC
Specifications Subject to Change
Critical Link, LLC
www.CriticalLink.com
MitySOM
MitySOM-335x Processor Card
9 February 2018
ELECTRICAL CHARACTERISTICS
Table 2: Electrical Characteristics
Parameter
Conditions
Symbol
Min
Typ
Max
Units
3.2
3.3
5.2
Volts
500
500
mA
mA
VIN
Voltage supply, volt input.
IVIO_3P3
IVIO_1P8
Max current draw3
Max current draw3
3.3 volt IO output
1.8 volt IO output
I3.3
I3.3-max
Quiescent Current draw1
Max current draw1
3.3 volt input, DDR2
3.3 volt input, DDR2
-
240
520
TBS
mA
mA
I3.3
I3.3-max
Quiescent Current draw1
Max current draw1
3.3 volt input, DDR3
3.3 volt input, DDR3
-
300
520
TBS
mA
mA
IVBackup
IVBackup-Active
VBACKUP Current draw2
VBACKUP Current draw
3.3 VIN applied to SoM
PMIC RTC active
-