Table 12. Alternate Functions Selected Through Gpioa_Afr Registers For Port A - STMicroelectronics STM32F031F4 Manual

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Pin name AF0
PA0
PA1 EVENTOUT
PA2
PA3
SPI1_NSS,
PA4
I2S1_WS
SPI1_SCK,
PA5
I2S1_CK
SPI1_MISO,
PA6
I2S1_MCK
SPI1_MOSI,
PA7
I2S1_SD
PA8 MCO
PA9
PA10 TIM17_BKIN
PA11 EVENTOUT
PA12 EVENTOUT
PA13 SWDIO
PA14 SWCLK
SPI1_NSS,
PA15
I2S1_WS
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Table 12. Alternate functions selected through GPIOA_AFR registers for port A

AF1
- USART1_CTS
USART1_RTS
- USART1_TX
- USART1_RX
USART1_CK
-
TIM3_CH1
TIM3_CH2
USART1_CK
- USART1_TX
USART1_RX
USART1_CTS
USART1_RTS
IR_OUT
USART1_TX
USART1_RX
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AF2 AF3
TIM2_CH1_
-
ETR
TIM2_CH2 -
TIM2_CH3 -
TIM2_CH4 -
- -
TIM2_CH1_
-
ETR
TIM1_BKIN -
TIM1_CH1N -
TIM1_CH1 EVENTOUT
TIM1_CH2 -
TIM1_CH3 -
TIM1_CH4 -
TIM1_ETR -
- -
- -
TIM2_CH1_
EVENTOUT
ETR
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AF4 AF5
- -
- -
- -
- -
TIM14_CH1 -
- -
- TIM16_CH1
TIM14_CH1 TIM17_CH1
- -
I2C1_SCL -
I2C1_SDA -
- -
- -
- -
- -
- -
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AF6 AF7
- -
- -
- -
- -
- -
- -
EVENTOUT -
EVENTOUT -
- -
- -
- -
- -
- -
- -
- -
- -
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