Does the PWM generator support the entire output signal to be high level or low level?

[a_ziliu]

Depending on the NuMicro? series, the PWM generator in some chips must have at least one count for high level or low level pulse width within the cycle of the entire PWM output waveform.
The NUC131, M0518 and M451 series support the entire output signal to be high level or low level.