General purpose timer (TIMx) UM0306
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Figure 78. Counter timing diagram, internal clock divided by N
Figure 79. Counter timing diagram, Update event when ARPE=0 (TIMx_ARR not
preloaded)
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