31.1.2.1 Left Aligned Mode

In Left Aligned mode, the active part of the duty cycle is at the beginning of the period. The outputs start active and stay active for the number of prescaled PWM clock periods specified by the P1 and P2 parameter registers, then go inactive for the remainder of the period. Block and timing diagrams follow.
Figure 31-1. Left-Aligned Block Diagram
Figure 31-2. Left-Aligned Timing Diagram