OMAP
TM
4 PandaBoard System
Reference Manual
Revision 0.4
September 22, 2010
DOC-21010
Page 43 of 83
J3
Pin #
OMAP
Ball #
Primary Function
Secondary
Function
Description of PandaBoard Usage
1
---
VIO_1V8
---
1.8V I/O Power
2
---
DC_5V
---
5Vdc Input Power
3
B16
GPMC_AD7
SDMMC2_DAT7 GPMC Address/Data Bit 7
4
AH23
MCSPI1_CS3
GPIO_140
SPI1 Chip Select 3 (also UART1_RTS)
5
A16
GPMC_AD6
SDMMC2_DAT6 GPMC Address/Data Bit 6
6
AH19
UART4_TX
GPIO_156
UART4 Transmit Data
7
D15
GPMC_AD5
SDMMC2_DAT5 GPMC Address/Data Bit 5
8
AG20
UART4_RX
GPIO_155
UART4 Receive Data
9
C15
GPMC_AD4
SDMMC2_DAT4 GPMC Address/Data Bit 4
10
AF23
MCSPI1_CS1
GPIO_138
SPI1 Chip Select 1 (also UART1_RX)
11
D13
GPMC_AD3
SDMMC2_DAT3 GPMC Address/Data Bit 3
12
AG22
MCSPI1_SIMO
GPIO_136
SPI1 Slave In Master Out
13
C13
GPMC_AD2
SDMMC2_DAT2 GPMC Address/Data Bit 2
14
AG23
MCSPI1_CS2
GPIO_139
SPI1 Chip Select 2 (also UART1_CTS)
15
D12
GPMC_AD1
SDMMC2_DAT1 GPMC Address/Data Bit 1
16
AE23
MCSPI1_CS0
GPIO_137
SPI1 Chip Select 0
17
C12
GPMC_AD0
SDMMC2_DAT0 GPMC Address/Data Bit 0
18
AE22
MCSPI1_SOMI
GPIO_135
SPI1 Slave Out Master In
19 B12 GPMC_NWE SDMMC2_CMD
GPMC
Write
Enable
20 AF22 MCSPI1_CLK GPIO_134 SPI1
Clock
Out
21 B11 GPMC_NOE SDMMC2_CLK
GPMC
Output
Enable
22
D19
GPMC_AD15
GPIO_39
GPMC Address/Data Bit 15
23
AH22
I2C4_SDA
GPIO_133
I2C4 Serial Data
24
AG21
I2C4_SCL
GPIO_132
I2C4 Serial Clock
25 ---
REGEN1
--- TWL6030
REGEN1
26
E7
SYS_NRESPWRON
---
Power On Reset
27 ---
DGND
--- Digital
Ground
28 ---
DGND
--- Digital
Ground
Table 10: Expansion Connector “A” Pin Definitions (J3)
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