RM0033 Rev 9 307/1381
RM0033 Advanced-control timers (TIM1 and TIM8)
375
Figure 66. Counter timing diagram with prescaler division change from 1 to 2
Figure 67. Counter timing diagram with prescaler division change from 1 to 4
CK_PSC
00
CEN
Timerclock = CK_CNT
Counter register
Update event (UEV)
0
Prescaler control register
1
0
Write a new value in TIMx_PSC
Prescaler buffer
1
0
Prescaler counter
0
10
10
1
0
1
01
02
03
FA
FBF7 F8 F9 FC
MS31076V2
0
3
0
0
1230123
MS31077V2
CK_PSC
CEN
Timerclock = CK_CNT
Counter register
Update event (UEV)
Prescaler control register
Write a new value in TIMx_PSC
Prescaler buffer
Prescaler counter
00
01
FA
FB
F7 F8 F9
FC
30
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