Table of Contents
Advertisement
PRODUCT USER GUIDE
Signal Name
Connector Pin Number
GPIO_0
Reserve for flash
GPIO_1
Reserve for flash
GPIO_2
Reserve for flash
GPIO_3
Reserve for flash
GPIO_4
Reserve for flash
GPIO_5
Reserve for flash
GPIO_6
J28 - 2
Reserve for Arduino: SPI0_SCK
GPIO_7
J28 - 4
Reserve for Arduino: SPI0_CSN
GPIO_8
J28 - 6
Reserve for Arduino: SPI0_MISO
GPIO_9
J28 - 8
Reserve for Arduino: SPI0_MOSI
GPIO_10
J28 - 10
GPIO_11
J28 - 12
GPIO_12
J87 - 5
GPIO_13
J87 - 7
GPIO_14
J87 - 9
GPIO_15
J87 - 11
GPIO_17
J87 - 13
GPIO_18
J87 - 15
GPIO_19
J87 - 17
Reserve for Arduino: I2C1_SDA
GPIO_20
J87 - 19
Reserve for Arduino: I2C1_SCL
GPIO_21
J87 - 21
GPIO_22
J87 - 23
GPIO_23
J87 - 25
GPIO_24
J87 - 12
GPIO_25
J87 - 14
GPIO_26
J87 - 16
Note: GPIO_39 is AU_AMP_MUTE by default. When using pin headers J28-29pin, resistor R161 needs to be switched to Location of
R160.
www.acsip.com.tw
Table 4 GPIO pin-out extension connectors
Signal Name
GPIO_27
GPIO_28
GPIO_29
GPIO_30
GPIO_31
GPIO_32
GPIO_33
GPIO_34
GPIO_35
GPIO_36
GPIO_37
GPIO_38
GPIO_39
GPIO_40
GPIO_41
GPIO_42
GPIO_43
GPIO_44
GPIO_45
GPIO_46
GPIO_47
GPIO_48
GPIO_49
GPIO_50
GPIO_51
GPIO_52
Table 5 GPIO pin multi-function definition
Connector Pin Number
J87 - 18
J87 - 20
J28 - 15
J28 - 17
J28 - 19
Reserve for USB OTG
J28 - 21
Reserve for USB OTG
J28 - 23
Reserve for USB OTG
J28 - 25
Reserve for USB OTG
J28 - 18
J28 - 20
J28 - 22
J28 - 24
J28 - 29
Default for AU_AMP_MUTE
J28 - 27
J28 - 1
J28 - 30
Reserve for Arduino: UART1_RX
J28 - 3
J28 - 28
Reserve for Arduino: UART1_TX
J28 - 5
J28 - 7
J87 - 2
J87 - 6
Reserve for CM33 UART
J87 - 4
J87 - 8
Reserve for CM33 UART
J28 - 9
J28 - 11
Product Name
EK-AI7933CLD
Version
E
Doc No
912-13903
Date
2022/11/14
Page
17 /33
Advertisement
Table of Contents
