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STM32F042C4 数据表(PDF) 37 Page - STMicroelectronics |
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STM32F042C4 数据表(HTML) 37 Page - STMicroelectronics |
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37 / 117 page ![]() Table 14. Alternate functions selected through GPIOA_AFR registers for port A Pin name AF0 AF1 AF2 AF3 AF4 AF5 AF6 AF7 PA0 - USART2_CTS TIM2_CH1_ETR TSC_G1_IO1 - - - - PA1 EVENTOUT USART2_RTS TIM2_CH2 TSC_G1_IO2 - - - - PA2 - USART2_TX TIM2_CH3 TSC_G1_IO3 - - - - PA3 - USART2_RX TIM2_CH4 TSC_G1_IO4 - - - - PA4 SPI1_NSS, I2S1_WS USART2_CK USB_NOE TSC_G2_IO1 TIM14_CH1 - - - PA5 SPI1_SCK, I2S1_CK CEC TIM2_CH1_ETR TSC_G2_IO2 - - - - PA6 SPI1_MISO, I2S1_MCK TIM3_CH1 TIM1_BKIN TSC_G2_IO3 - TIM16_CH1 EVENTOUT - PA7 SPI1_MOSI, I2S1_SD TIM3_CH2 TIM1_CH1N TSC_G2_IO4 TIM14_CH1 TIM17_CH1 EVENTOUT - PA8 MCO USART1_CK TIM1_CH1 EVENTOUT CRS_SYNC - - - PA9 - USART1_TX TIM1_CH2 TSC_G4_IO1 I2C1_SCL MCO - - PA10 TIM17_BKIN USART1_RX TIM1_CH3 TSC_G4_IO2 I2C1_SDA - - - PA11 EVENTOUT USART1_CTS TIM1_CH4 TSC_G4_IO3 CAN_RX I2C1_SCL - - PA12 EVENTOUT USART1_RTS TIM1_ETR TSC_G4_IO4 CAN_TX I2C1_SDA - - PA13 SWDIO IR_OUT USB_NOE - - - - - PA14 SWCLK USART2_TX - - - - - - PA15 SPI1_NSS, I2S1_WS USART2_RX TIM2_CH1_ETR EVENTOUT - USB_NOE - - |
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