Pin
out
s and pin des
c
ript
ion
S
TM3
2
F0
38
x6
3
2/1
DocID026
079 Re
v 3
Table 13. Alternate functions selected through GPIOB_AFR registers for port B
Pin name
AF0
AF1
AF2
AF3
PB0
EVENTOUT
TIM3_CH3
TIM1_CH2N
-
PB1
TIM14_CH1
TIM3_CH4
TIM1_CH3N
-
PB2
-
-
-
-
PB3
SPI1_SCK, I2S1_CK
EVENTOUT
TIM2_CH2
-
PB4
SPI1_MISO, I2S1_MCK
TIM3_CH1
EVENTOUT
-
PB5
SPI1_MOSI, I2S1_SD
TIM3_CH2
TIM16_BKIN
I2C1_SMBA
PB6
USART1_TX
I2C1_SCL
TIM16_CH1N
-
PB7
USART1_RX
I2C1_SDA
TIM17_CH1N
-
PB8
-
I2C1_SCL
TIM16_CH1
-
PB9
IR_OUT
I2C1_SDA
TIM17_CH1
EVENTOUT
PB10
-
I2C1_SCL
TIM2_CH3
-
PB11
EVENTOUT
I2C1_SDA
TIM2_CH4
-
PB12
SPI1_NSS
EVENTOUT
TIM1_BKIN
-
PB13
SPI1_SCK
-
TIM1_CH1N
-
PB14
SPI1_MISO
-
TIM1_CH2N
-
PB15
SPI1_MOSI
-
TIM1_CH3N
-