RM0090: Reference manual - STMicroelectronics

Basic timers (TIM6&TIM7) RM0090
Figure 193. Counter timing diagram, internal clock divided by 4
CK_INT
CNT_EN
TImer clock = CK_CNT
Counter register
Counter overflow
Update event (UEV)
Update interrupt flag (UIF)
Figure 194. Counter timing diagram, internal clock divided by N
CK_INT
Timer clock = CK_CNT
Figure 195. Counter timing diagram, update event when ARPE = 0 (TIMx_ARR not
preloaded)
525/1416 Doc ID 018909 Rev 3
0035 0036
Counter register 1F 20
00
Counter overflow
Update event (UEV)
Update interrupt flag (UIF)
CK_INT
CNT_EN
Timer clock = CK_CNT
Counter register
Counter overflow
Update event (UEV)
Update interrupt flag (UIF)
31
0000 0001
32 33 34 35 36 00 01 02 03 04 05 06 07
Auto-reload register FF 36
Write a new value in TIMx_ARR