Datasheet

STM32F031x4 STM32F031x6 Pinouts and pin description
DocID025743 Rev 6 31/106
Table 12. Alternate functions selected through GPIOA_AFR registers for port A
Pin name AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7
PA0 - USART1_CTS
TIM2_CH1_
ETR
-- - --
PA1 EVENTOUT USART1_RTS TIM2_CH2 - - - - - PA2 - USART1_TX TIM2_CH3 - - - - - PA3 - USART1_RX TIM2_CH4 - - - - - PA4
SPI1_NSS,
I2S1_WS
USART1_CK - - TIM14_CH1 - - -
PA5
SPI1_SCK,
I2S1_CK
-
TIM2_CH1_
ETR
-- - --
PA6
SPI1_MISO,
I2S1_MCK
TIM3_CH1 TIM1_BKIN - - TIM16_CH1 EVENTOUT -
PA7
SPI1_MOSI,
I2S1_SD
TIM3_CH2 TIM1_CH1N - TIM14_CH1 TIM17_CH1 EVENTOUT -
PA8 MCO USART1_CK TIM1_CH1 EVENTOUT - - - - PA9 - USART1_TX TIM1_CH2 - I2C1_SCL - - -
PA10 TIM17_BKIN USART1_RX TIM1_CH3 - I2C1_SDA - - -
PA11 EVENTOUT USART1_CTS TIM1_CH4 - - - - -
PA12 EVENTOUT USART1_RTS TIM1_ETR - - - - - PA13 SWDIO IR_OUT - - - - - - PA14 SWCLK USART1_TX - - - - - - PA15
SPI1_NSS,
I2S1_WS
USART1_RX
TIM2_CH1_
ETR
EVENTOUT - - - -
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