STM32W108HB Datasheet, PDF (20/179 Pages) STMicroelectronics – High-performance, IEEE 802.15.4 wireless system-on-chip

Pinout and pin description
STM32W108CB, STM32W108HB
Table 1. Pin descriptions (continued)
48-Pin 40-Pin
Packag Packag
e Pin e Pin
no.
no.
Signal
Direction
Description
PB3
I/O Digital I/O
TIM2_CH3
(see Pin 22)
Timer 2 channel 3 output
O
Enable remap with TIM2_OR[6]
Enable timer output in TIM2_CCER
Select alternate output function with GPIO_PBCFGL[15:12]
I
Timer 2 channel 3 input. Enable remap with TIM2_OR[6].
UART_CTS
19
15
SC1SCLK
UART CTS handshake of Serial Controller 1
I
Enable with SC1_UARTCFG[5]
Select UART with SC1_MODE
SPI master clock of Serial Controller 1
Either disable timer output in TIM2_CCER or disable remap with
TIM2_OR[6]
O
Enable master with SC1_SPICFG[4]
Select SPI with SC1_MODE
Select alternate output function with GPIO_PBCFGL[15:12]
SPI slave clock of Serial Controller 1
I
Enable slave with SC1_SPICFG[4]
Select SPI with SC1_MODE
PB4
I/O Digital I/O
TIM2_CH4
(see also
Pin 24)
20
16
UART_RTS
Timer 2 channel 4 output
Enable remap with TIM2_OR[7]
O
Enable timer output in TIM2_CCER
Select alternate output function with GPIO_PBCFGH[3:0]
I
Timer 2 channel 4 input. Enable remap with TIM2_OR[7].
UART RTS handshake of Serial Controller 1
Either disable timer output in TIM2_CCER or disable remap with
TIM2_OR[7]
O
Enable with SC1_UARTCFG[5]
Select UART with SC1_MODE
Select alternate output function with GPIO_PBCFGH[3:0]
SC1nSSEL
SPI slave select of Serial Controller 1
I
Enable slave with SC1_SPICFG[4]
Select SPI with SC1_MODE
20/179
Doc ID 16252 Rev 2