CCP/ECCP Capture Interrupt

Last modified by Microchip on 2023/11/10 11:10

When a capture is made in the Capture mode, the CCP Interrupt Flag bit (CCPxIF) of the Peripheral Interrupt (PIRx) register is set. The interrupt flag can be monitored via software or an automatic interrupt can be initiated, sending the 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. Following any change, the CCPxIF interrupt flag bit should be cleared off the PIRx register.