Is that possible to use the Instant Interrupts to create/read, letīs say, 4 different buttons on PORTC ?
Yes, that's possible. But it would be a lot easier if you used RBC_INT "Port B change interrupts". It uses PORTB.4 thru PORTB.7

But if those pins aren't available, you could do something like this, which uses only 1 interrupt (INT_INT on Falling Edge), then the interrupt handler can read PORTC to figure out which one was pressed.


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