Product Name
EK-AI7931LD
Version
E
Doc No
912-13802
Date
2022/11/14
Page
17 / 26
PRODUCT USER GUIDE
www.acsip.com.tw
Table 4 GPIO pin-out extension connector
Signal Name
Connector Pin Number
Signal Name
Connector Pin Number
GPIO_0
Reserve for flash
GPIO_14
J87 - 9
GPIO_1
Reserve for flash
GPIO_15
J87 - 11
GPIO_2
Reserve for flash
GPIO_17
J87 - 13
GPIO_3
Reserve for flash
GPIO_18
J87 - 15
GPIO_4
Reserve for flash
GPIO_19
J87 - 17
Reserve for Arduino:I2C1_SDA
GPIO_5
Reserve for flash
GPIO_20
J87 - 19
Reserve for Arduino:I2C1_SCL
GPIO_6
J28 - 2
Reserve for Arduino:SPI0_CSK
GPIO_21
J87 - 21
GPIO_7
J28 - 4
Reserve for Arduino:SPI0_CSN
GPIO_22
J87 - 23
GPIO_8
J28 - 6
Reserve for Arduino:SPI0_MISO
GPIO_23
J87 - 25
GPIO_9
J28 - 8
Reserve for Arduino:SPI0_MOSI
GPIO_24
J87 - 12
GPIO_10
J28 - 10
GPIO_42
J28 - 30
Reserve for Arduino:UART1_RX
GPIO_11
J28 - 12
GPIO_44
J28 - 28
Reserve for Arduino:UART1_TX
GPIO_12
J87 - 5
GPIO_48
J87 - 6
Reserve for CM33 UART
GPIO_13
J87 - 7
GPIO_50
J87 - 8
Reserve for CM33 UART
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ip
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ip
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ip