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