ST STM32F40 Series

Basic timers (TIM6&TIM7) RM0090
529/1422 Doc ID 018909 Rev 4
Figure 193. Counter timing diagram, internal clock divided by 4
Figure 194. Counter timing diagram, internal clock divided by N
Figure 195. Counter timing diagram, update event when ARPE = 0 (TIMx_ARR not
preloaded)
0000 0001
CNT_EN
TImer clock = CK_CNT
Counter register
Update interrupt flag (UIF)
0035
0036
Counter overflow
Update event (UEV)
CK_INT
Timer clock = CK_CNT
Counter register
00
1F
20
Update interrupt flag (UIF)
Counter overflow
Update event (UEV)
CK_INT
00
CNT_EN
Timer clock = CK_CNT
Counter register
Update interrupt flag (UIF)
Counter overflow
Update event (UEV)
01 02 03 04 05 06 0732 33 34 35 3631
Auto-reload register
FF 36
Write a new value in TIMx_ARR
CK_INT