TS-7400/TS-9441 MANUAL
CONNECTORS AND HEADERS
Lower header pin-out
Pin # Name Function
1 DIO_00 GPIO #0 or GPBUS multiplexed address/data #0
2 3.3V 3.3V TS-7400 regulator output (or input, if U6 regulator is
not populated)
3 DIO_01 GPIO #1 or GPBUS multiplexed address/data #1
4 DIO_02 GPIO #2 or GPBUS multiplexed address/data #2
5 DIO_03 GPIO #3 or GPBUS multiplexed address/data #3
6 DIO_04 GPIO #4 or GPBUS multiplexed address/data #4
7 DIO_05 GPIO #5 or GPBUS multiplexed address/data #5
8 DIO_06 GPIO #6 or GPBUS multiplexed address/data #6
9 DIO_07 GPIO #7 or GPBUS multiplexed address/data #7
10 DIO_08 GPIO #8 or GPBUS ALE (address latch enable)
11 DIO_09 GPIO #9 or GPBUS RD (read strobe)
12 GND Ground
13 DIO_10 GPIO #10 or GPBUS WR (write strobe)
14 DIO_11 GPIO #11 or GPBUS IRQ (active high, level sensitive)
15 DIO_12 GPIO #12 or GPBUS DRQ (uses EP93xx M2M1 dma
channel)
16 DIO_13 GPIO #13 or GPBUS 14.7456Mhz clock
17 DIO_14 GPIO #14
18 5V 5V regulated power input/output
19 DIO_15 GPIO #15 or serial UART #2 transmit-enable
(/dev/ttyTS0 device node in Linux)
20 DIO_16 GPIO #16 or serial UART #2 receive data input
(/dev/ttyTS0 device node in Linux)
21 DIO_17 GPIO #17 or serial UART #2 transmit output (/dev/ttyTS0
device node in Linux)
22 DIO_18 GPIO #18 or serial UART #0 transmit output
(/dev/ttyAM0 device node in Linux)
23 DIO_19 GPIO #19 or serial UART #0 receive data input
(/dev/ttyAM0 device node in Linux)
24 UART1_RXD serial UART #1 receive data input (/dev/ttyAM1 device
node in Linux)
25 UART1_TXD serial UART #1 transmit output (/dev/ttyAM1 device node
in Linux)
26 1.8V 1.8V regulator output (or input if U7 regulator not
populated)
27 ADC0 EP93xx CPU analog to digital channel #0 input
28 ADC1 EP93xx CPU analog to digital channel #1 input
29 ADC2 EP93xx CPU analog to digital channel #2 input
30 ADC3 EP93xx CPU analog to digital channel #3 input
31 GND Ground
32 ABIT_CLK EP93xx CPU AC97 audio codec signal
33 ASDO EP93xx CPU AC97 audio codec signal
34 ASYNCH EP93xx CPU AC97 audio codec signal
35 ARST# EP93xx CPU AC97 audio codec signal
36 ASDI EP93xx CPU AC97 audio codec signal
37 SSP_TX EP93xx SPI/SSP/I2S signal
38 SSP_RX EP93xx SPI/SSP/I2S signal
39 SSP_FRM EP93xx SPI/SSP/I2S signal
40 SSP_CLK EP93xx SPI/SSP/CLK signal
© May, 2010 www.embeddedARM.com 37
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