26.5.7.3 Compare Modes Data Write

Three data registers are provided for Output Compare modes:

• CCPxPR
• CCPxRA
• CCPxRB

CCPxPR provides a value for comparison to the module timer; the match is used to:

• Set the count period of the time base.
• Generate CCP Sync outputs for other modules.

CCPxRA provides a value for comparison to the module timer; the match is used:

• As a second compare register in Dual Compare mode to create all negative edges.
• As the upper 16 bits of the compare value in 32-bit single edge compare operations.

When the module operates with a 32-bit time base (T32 = 1), CCPxRB and CCPxRA are combined to form a single 32-bit Compare register. The CCPxRB value is compared to the upper 16 bits of the time base, and the CCPxRA value is compared to the lower 16 bits. The CCPxRB/CCPxRA register pair performs these functions in 32-bit modes:

• Edge generation in Single Edge Output Compare modes
• Generates the ccp_trig_out signal.