Figure 307. Combined Pwm Mode On Channel 1 And 3 - ST STM32G4 Series Reference Manual

Advanced arm-based 32-bit mcus

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Combined 3-phase PWM mode

Combined 3-phase PWM mode allows one to three center-aligned PWM signals to be

generated with a single programmable signal ANDed in the middle of the pulses. The

tim_oc5ref signal is used to define the resulting combined signal. The 3-bits GC5C[3:1] in

the TIMx_CCR5 allow selection on which reference signal the tim_oc5ref is combined. The

resulting signals, tim_ocxrefc, are made of an AND logical combination of two reference

Combined 3-phase PWM mode can be selected independently on channels 1 to 3 by setting

at least one of the 3-bits GC5C[3:1].

Figure 307. Combined PWM mode on channel 1 and 3

tim_oc1refc = tim_oc1ref AND tim_oc2ref

tim1_oc1refc = tim1_oc1ref OR tim1_oc2ref

If GC5C1 is set, tim_oc1refc is controlled by TIMx_CCR1 and TIMx_CCR5

If GC5C2 is set, tim_oc2refc is controlled by TIMx_CCR2 and TIMx_CCR5

If GC5C3 is set, tim_oc3refc is controlled by TIMx_CCR3 and TIMx_CCR5

Advanced-control timers (TIM1/TIM8/TIM20)

RM0440 Rev 1

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