Figure 437. Counter Timing Diagram With Prescaler Division Change From 1 To 2; Figure 438. Counter Timing Diagram With Prescaler Division Change From 1 To 4 - ST STM32G4 Series Reference Manual

General-purpose timers (TIM15/TIM16/TIM17)

Figure 437. Counter timing diagram with prescaler division change from 1 to 2

Update event (UEV)
Prescaler control register
Prescaler counter

Figure 438. Counter timing diagram with prescaler division change from 1 to 4

Counter register
Update event (UEV)
Prescaler control register
Prescaler counter
1306/2083
tim_psc_ck
CEN
tim_cnt_ck
F7
Counter register
Write a new value in TIMx_PSC
Prescaler buffer
tim_psc_ck
CEN
tim_cnt_ck
Write a new value in TIMx_PSC
Prescaler buffer
F8 F9 FA FB FC
0
0
0
F7 F8 F9 FA FB
0
0
0
RM0440 Rev 1
01
00
1
1
0 1 0 1 0
FC 00
3
0 1 2 3 0
RM0440
02
03
1 0 1
MSv50998V1
01
3
1 2 3
MSv50999V1