ST STM32F405

Basic timers (TIM6 and TIM7) RM0090
698/1749 RM0090 Rev 18
Figure 204. Counter timing diagram with prescaler division change from 1 to 2
Figure 205. Counter timing diagram with prescaler division change from 1 to 4
CK_PSC
00
CNT_EN
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 03FA FBF7 F8 F9 FC
MS31076V3
0
3
0
0
1230123
MS31077V3
CK_PSC
CNT_EN
Timerclock = CK_CNT
Counter register
Update event (UEV)
Prescaler control register
Write a new value in TIMx_PSC
Prescaler buffer
Prescaler counter
00 01FA FBF7 F8 F9 FC
30