When in Capture mode and a capture is made, the CCP Interrupt Flag bit (CCPxIF) of the Peripheral Interrupt Register (PIRx) is set. The interrupt flag can be monitored via software or an automatic interrupt can be initiated thus sending program control to an interrupt service routine. The interrupt flag must be cleared in software. For more detail on the interrupt structure of 8-bit devices refer to the Interrupts Training Module.
When the Capture mode is changed, a false capture interrupt may be generated. The software developer should clear the CCPxIF interrupt flag bit of the PIRx register following any change in Capture mode.
Microchip Technology acquires Atmel