ETRSEL=B_0x0
TIM3 alternate function register 1
ETRSEL | etr_in source selection These bits select the etr_in input source. … Refer to Section 65.4.2: TIM2/TIM3/TIM4/TIM5 pins and internal signals for product specific implementation. 0 (B_0x0): tim_etr0: TIMx_ETR input 1 (B_0x1): tim_etr1 15 (B_0xF): tim_etr15 |