ST STM32WL55JC Reference Manual page 900

General-purpose timers (TIM16/TIM17) RM0453
Figure 242. Counter timing diagram, internal clock divided by 4
CK_PSC
CNT_EN
Timerclock = CK_CNT
Counter register 0035
0036 0000 0001
Counter overflow
Update event (UEV)
Update interrupt flag
(UIF)
MS31080V2
Figure 243. Counter timing diagram, internal clock divided by N
CK_PSC
Timerclock = CK_CNT
1F
Counter register 20 00
Counter overflow
Update event (UEV)
Update interrupt flag
(UIF)
MS31081V2
900/1454 RM0453 Rev 2