Product Name
EK-AI7931LD
Version
E
Doc No
912-13802
Date
2022/11/14
Page
21 / 26
PRODUCT USER GUIDE
www.acsip.com.tw
IO Name
CR Value
Default*
Name
Dir
Default
Description
Dir
PU/PD
GPIO_B_6
(AUXADC)
0000
GPIO[18]
I/O
O
PU
GPIO 18
0001*
CONN_BT_TXD
O
BT Debug UART TX
0010
UART0_TX
O
UART0 TX
0011
TDMIN_BCK
I
TDMIN BCK
0100
DMIC_DAT0
I
DMIC DAT0
0101
UART1_RX
I
UART1 RX
0110
IR_IN
I
IR RX Input
0111
CM33_GPIO_EINT10
I
CM33 EINT10
GPIO_B_7
(AUXADC)
0000
GPIO[19]
I/O
O
PD
GPIO 19
0001*
WIFI_TXD
O
Wi-Fi Debug UART TX
0010
UART0_RTS
O
UART0 RTS
0011
I2C1_SDA
I/O
I2C1 Data
0100
I2SIN_LRCK
O
I2SIN LRCK
0101
UART1_TX
O
UART1 TX
0110
PTA_EXT_IF_FREQ
I
External PTA Frequency
0111
CM33_GPIO_EINT11
I
CM33 EINT11
GPIO_B_8
(AUXADC)
0000
GPIO[20]
I/O
I
PD
GPIO 20
0001*
CONN_WF_MCU_AICE_
TCKC
I
Wi-Fi N10 SWD
0010
UART0_CTS
I
UART0 Control
0011
I2C1_SCL
O
I2C1 Clock
0100
I2SIN_BCK
O
I2SIN BCK
0101
DEBUG_12
O
Debug Signal 12
0110
PTA_EXT_IF_ACT
I
External PTA Active
0111
CM33_GPIO_EINT12
I
CM33 EINT12
GPIO_B_9
(AUXADC)
0000
GPIO[21]
I/O
I
PU
GPIO 21
0001*
CONN_WF_MCU_AICE_
TMSC
I/O
Wi-Fi N10 SWD
0010
PTA_EXT_IF_PRI
I/O
External PTA Priority
0011
TDMIN_LRCK
I/O
TDMIN LRCK
0100
DMIC_DAT1
I
DMIC DAT1
0101
DEBUG_13
O
Debug Signal 13
0110
ANT_SEL9
O
Antenna Select 9
0111
CM33_GPIO_EINT13
I
CM33 EINT13
Pro
vid
ed
by
AcS
ip
Pro
vid
ed
by
AcS
ip
Pro
vid
ed
by
AcS
ip
