Datasheet

Pin descriptions STM32L100C6, STM32L100R8/RB 35/102 DocID024295 Rev 1
Table 8. Alternate function input/output
Port
name
Digital alternate function number
AFIO0 AFIO1 AFIO2 AFIO3 AFIO4 AFIO5 AFOI6 AFIO7 AFIO8 AFIO9 AFIO10 AFIO11 AFIO12 AFIO13 AFIO14 AFIO15
Alternate function
SYSTEM TIM2 TIM3/4 TIM9/10/11 I2C1/2 SPI1/2 N/A
USART
1/2/3
N/A N/A USB LCD N/A N/A RI SYSTEM
BOOT0 BOOT0
NRST NRST
PA0-WKUP1 WKUP1
TIM2_CH1_
ETR
USART2_
CTS
TIMx_IC1 EVENTOUT
PA1 TIM2_CH2
USART2_
RTS
[SEG0] TIMx_IC2 EVENTOUT
PA2 TIM2_CH3 TIM9_CH1
USART2_
TX
[SEG1] TIMx_IC3 EVENTOUT
PA3 TIM2_CH4 TIM9_CH2
USART2_
RX
[SEG2] TIMx_IC4 EVENTOUT
PA4 SPI1_NSS
USART2_
CK
TIMx_IC1 EVENTOUT
PA5
TIM2_CH1_
ETR
SPI1_SCK TIMx_IC2 EVENTOUT
PA6 TIM3_CH1 TIM10_CH1 SPI1_MISO [SEG3] TIMx_IC3 EVENTOUT
PA7 TIM3_CH2 TIM11_CH1 SPI1_MOSI [SEG4] TIMx_IC4 EVENTOUT
PA8 M C O
USART1_
CK
[COM0] TIMx_IC1 EVENTOUT
PA9
USART1_
TX
[COM1] TIMx_IC2 EVENTOUT
PA1 0
USART1_
RX
[COM2] TIMx_IC3 EVENTOUT
PA1 1 SPI1_MISO
USART1_
CTS
DM TIMx_IC4 EVENTOUT
PA1 2 SPI1_MOSI
USART1_
RTS
DP TIMx_IC1 EVENTOUT
PA13 JTMS-SWDAT TIMx_IC2 EVENTOUT
PA14 JTCK-SWCLK TIMx_IC3 EVENTOUT