Figure 63. Update Rate Examples Depending On Mode And Timx_Rcr Register Settings - STMicroelectronics STM32F05 series Reference Manual

Advanced-control timers (TIM1)
Figure 63. Update rate examples depending on mode and TIMx_RCR register
Counter
TIMx_CNT
TIMx_RCR = 0
TIMx_RCR = 1
TIMx_RCR = 2
TIMx_RCR = 3
TIMx_RCR
and
re-synchronization
236/742
settings
Center-aligned mode
UEV
UEV
UEV
UEV
= 3
UEV
(by SW)
UEV
Update Event: Preload registers transferred to active registers and update interrupt generated
Doc ID 018940 Rev 1
Edge-aligned mode
Upcounting
(by SW)
RM0091
Downcounting
(by SW)