ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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4.5
GPIO Alternate Function Summary
MFP* = Multi-function pin. (Reference section )
Pin function is defined in SYS_GPx_MFPx registers. For example PA0~7 pin functions are defined in SYS_GPA_MFPL register,
and PA8~15 pin functions are defined in SYS_GPA_MFPH register.
MFP0
MFP1
MFP2
MFP3
MFP4
MFP5
PA.0
SPI0_SS1
EADC0_CH0
DMIC_DAT0
PA.1
SPI0_MOSI1
EADC0_CH1
DMIC_CLK0
PA.2
SPI0_MISO1
EADC0_CH2
DMIC_DAT1
PA.3
SPI0_MOSI0
EADC0_CH3
DMIC_CLK1
PA.4
SPI0_MISO0
EADC0_CH4
DPWM_LN
PA.5
SPI0_CLK
EADC0_CH5
DPWM_LP
PA.6
SPI0_SS0
EADC0_CH6
PA.7
UART0_TXD
EADC0_CH7
SPI2_MISO
PA.8
UART0_RXD
EADC0_CH8
SPI2_MOSI
PA.9
I2C0_SCL
EADC0_CH9
SPI2_SS
PA.10
I2C0_SDA
EADC0_ST
DPWM_RN
SPI2_CLK
PA.11
I2C0_SMBSUS
TM0
DPWM_RP
PA.12
I2C0_SMBAL
TM0_EXT
SPI2_I2SMCLK
PA.13
CLKO
INT0
DPWM_SN
I2C1_SCL
PA.14
SPI0_SS0
TM1
DPWM_SP
I2C1_SDA
PA.15
INT0
TM1_EXT
PB.0
PWM0_SYNC_IN
I2C0_SCL
PWM0_CH0
PB.1
PWM0_SYNC_OUT I2C0_SDA
PWM0_CH1
PB.2
PWM0_CH0
TM2
PWM0_CH2
PB.3
PWM0_CH1
TM2_EXT
DMIC_DAT1
UART0_RXD
PWM0_CH3
PB.4
UART0_nCTS
PWM0_CH0
DMIC_CLK1
UART0_TXD
PWM0_CH4
PB.5
XT1_OUT
PWM0_CH1
I2C0_SDA
I2C1_SDA
DMIC_DAT0
PB.6
XT1_IN
PWM0_CH2
I2C0_SCL
I2C1_SCL
DMIC_CLK0
PB.7
UART0_nRTS
PWM0_CH3
PB.8
UART0_TXD
PWM0_CH4
PB.9
UART0_RXD
PWM0_CH5
PB.13
USB_D+
I2S0_DI
PB.14
USB_D-
I2S0_DO
PB.15
USB_VBUS
I2S0_MCLK
PC.0
I2C1_SCL
X32_OUT
SPI1_MOSI
PC.1
I2C1_SDA
X32_IN
SPI1_MISO