General-purpose timers (TIM2 and TIM3) RM0091
314/742 Doc ID 018940 Rev 1
Figure 122 shows some center-aligned PWM waveforms in an example where:
● TIMx_ARR=8,
● PWM mode is the PWM mode 1,
● The flag is set when the counter counts down corresponding to the center-aligned
mode 1 selected for CMS=01 in TIMx_CR1 register.
Figure 122. Center-aligned PWM waveforms (ARR=8)
CCxIF
012345678765432101Counter register
CCRx = 4
OCxREF
CMS=01
CMS=10
CMS=11
CCxIF
CCRx = 7
OCxREF
CMS=10 or 11
CCxIF
CCRx = 8
OCxREF
CMS=01
CMS=10
CMS=11
'1'
CCxIF
CCRx > 8
OCxREF
CMS=01
CMS=10
CMS=11
'1'
CCxIF
CCRx = 0
OCxREF
CMS=01
CMS=10
CMS=11
'0'
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