Greetings,

I Found what the issue was, as it turns out, i have a faulty LCC socket, the pins for both of the CEXn ports were not making contact. I Wedged a small piece of wire in there and im getting the interrupts now.

For my initial debugging i was probing with my scope on the pin of the socket, not thinking that there might be an issue with it.

I setup the PCA Registers to capture anything only for testing, which is why i said negative in my narrative, but setup for Both in the Example.

Thanks all for your help !
-Lenny