14.4.2.4.4 Trigger Registers in Center-Aligned Mode

When using any of the Center-Aligned modes, bit 15 of the PGxTRIGA, PGxTRIGB and PGxTRIGC Trigger registers specifies whether the trigger compare time occurs in the first phase (CAHALF = 0) or the second phase (CAHALF = 1). User software should limit the maximum time base count period to 0x7FFF (15 bits) in Center-Aligned PWM mode to ensure proper operation of the Trigger registers in all Center-Aligned modes. Otherwise, two trigger events may be generated in the center-aligned count phase depending on the values of the programmed period and Trigger register value. In some situations, it is desirable to have a trigger event occur in both count phases; this can be accomplished by programming two Trigger registers.