STM32WB09XE datasheet(30/73 Pages) STMICROELECTRONICS

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4.3

Alternate functions

Table 7. Alternate function port A

Port

AF0

AF1

AF2

AF3

AF4

AF5

AF6

AF7

I2C1/SYS_AF/USART

IR/LPUART/USART

IR/RTC USART/RF

SPI3

TIM2

SYS_AF

TIM16/TIM17

SYS_AF

Port A

PA0

I2C1_SCL

USART_CTS

IR_OUT

TIM2_CH3 -

PA1

I2C1_SDA

IR_OUT

USART_TX

TIM2_CH4 -

PA2

DEBUG_SWDIO

USART_CK

I2S3_MCK

TIM2_CH1 DEBUG_SWDIO

TIM16_CH1

DEBUG_SWDIO

PA3

DEBUG_SWCLK

USART_RTS_DE

SPI3_SCK/ I2S3_SCK

TIM2_CH2 DEBUG_SWCLK

TIM16_CH1N DEBUG_SWCLK

PA8

USART_RX

RADIO_RX_SEQUENCE

SPI3_MISO

TIM2_CH3 -

TIM16_BK

PA9

USART_TX

RTC_OUT

SPI3_NSS/ I2S3_WS

TIM2_CH4 -

TIM17_CH1

PA10 -

LPUART_CTS

RADIO_TX_SEQUENCE

I2S3_MCK

TIM17_CH1N -

PA11 RCC_MCO

RADIO_RX_SEQUENCE

SPI3_MOSI/ I2S3_SD

TIM17_BK

Table 8. Alternate function port B

Port

AF0

AF1

AF2

AF3

AF4

AF5

AF6

AF7

I2C1/ USART/LPUART

SYS_AF/ LPUART

LPUART/TIM2 TIM16/

RIM17

TIM2/SYS_AF/LPUART

TIM2

RF/USART

Port B

PB0 USART_RX

LPUART_RTS_DE

TIM16_CH1

RADIO_ANTENNA_ID[0]

PB1

USART_CK

TIM16_CH1N

TIM2_ETR

RADIO_ANTENNA_ID[1] -

PB2

USART_RTS_DE

TIM16_BK

TIM2_CH3

RADIO_ANTENNA_ID[2] -

PB3

USART_CTS

LPUART_TX

TIM17_CH1

TIM2_CH4

SPI3_SCK/ I2S3_SCK -

RADIO_ANTENNA_ID[3] -

PB4

LPUART_TX

TIM17_CH1N

TIM2_CH1

RADIO_ANTENNA_ID[4] -

PB5

LPUART_RX

TIM17_BK

TIM2_CH2

RADIO_ANTENNA_ID[5] -

PB6

I2C1_SCL

TIM17_CH1

LPUART_TX

TIM2_CH1

RADIO_ANTENNA_ID[6] -

PB7

I2C1_SDA

USART_CTS

LPUART_RX

TIM2_CH2

RADIO_RF_ACTIVITY

PB12 -

RCC_LCO

LPUART_CTS

TIM2_CH3

PB13 -

TIM2_CH4

PB14 I2C1_SMBA

RADIO_TX_SEQUENCE TIM2_ETR

RCC_MCO

USART_RX

PB15 -

USART_TX

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