[steven114]

Thanks very much for pointing those out - here's what I'm reading from them. ECCP2 can change which pin it uses, depending on how you set up the register. By default it is assigned to RC1, which is PWM13 and IFI says is unusable as a Capture input. If you are in microcontroller mode, it goes to RE7 which is not available for use. If not, it is attached to RE3 which is Relay 4 Fwd. Is it possible to use that as an input, or is there circuitry on the inside preventing this? Can I simply set the appropriate pin to input and not use relay 4? Are we in "microcontroller" mode? It seems to be set by the configuration register, which is programmed by IFI, correct?

Thanks for any pointers,
Steven