Period Interrupt Postscaler

The frequency of the period interrupt events can be reduced with the period interrupt postscaler. A postscaler counter suppresses period interrupts until the postscale count is reached. Only one PWM period interrupt is generated for every postscale counts. There are 256 postscale selections from 1:1 to 1:256.

The PIPOS bits select the postscale value. Changes to the postscale value take effect immediately. Clearing the EN bit before making postscaler changes is recommended to avoid unexpected behavior. The postscale counter is reset when the EN bit is cleared.