Product Name
EK-AI7931LD
Version
E
Doc No
912-13802
Date
2022/11/14
Page
20 / 26
PRODUCT USER GUIDE
www.acsip.com.tw
IO Name
CR Value
Default*
Name
Dir
Default
Description
Dir
PU/PD
GPIO_B_1
0000
GPIO[13]
I/O
I
PU
GPIO 13
0001*
RSVD
I
RSVD
0010
SPIM1_SCK
O
SPIM1 (Master) Clock
0011
I2SO_BCK
O
I2SO BCK
0100
UART1_RX
I
UART1 RX
0101
DEBUG_7
O
Debug Signal 7
0110
ANT_SEL4
O
Antenna Select 4
0111
CM33_GPIO_EINT5
I
CM33 EINT5
GPIO_B_2
0000
GPIO[14]
I/O
O
PD
GPIO 14
0001*
RSVD
O
RSVD
0010
SPIM1_MOSI
O
SPI1 (Master) Output
0011
I2SO_LRCK
O
I2SO LRCK
0100
RSVD
RSVD
0101
DEBUG_8
O
Debug Signal 8
0110
ANT_SEL5
O
Antenna Select 5
0111
CM33_GPIO_EINT6
I
CM33 EINT6
GPIO_B_3
0000
GPIO[15]
I/O
I
PD
GPIO 15
0001*
RSVD
I
RSVD
0010
SPIM1_MISO
I
SPI1 (Master) Input
0011
I2SO_MCK
O
I2STX MCLK
0100
I2SIN_MCK
O
I2SRX MCK
0101
DEBUG_9
O
Debug Signal 9
0110
ANT_SEL6
O
Antenna Select 6
0111
CM33_GPIO_EINT7
I
CM33 EINT7
GPIO_B_5
(AUXADC)
0000
GPIO[17]
I/O
I
PU
GPIO 17
0001*
CONN_BGF_UART0_RXD I
BT General UART RX
0010
UART0_RX
I
UART0 RX
0011
TDMIN_MCLK
I
TDMIN MCLK
0100
DMIC_CLK0
O
DMIC CLK0
0101
DEBUG_11
O
Debug Signal 11
0110
ANT_SEL8
O
Antenna Select 8
0111
CM33_GPIO_EINT9
I
CM33 EINT9
Pro
vid
ed
by
AcS
ip
Pro
vid
ed
by
AcS
ip
Pro
vid
ed
by
AcS
ip
