What is the difference between an external interrupt and port change interrupt?
For example a 16F877A, INTE enables the RB0/INT external interrupt while RBIE Enables the RB port change interrupt.
Printable View
What is the difference between an external interrupt and port change interrupt?
For example a 16F877A, INTE enables the RB0/INT external interrupt while RBIE Enables the RB port change interrupt.
The difference is one only allows one pin to trigger the interrupt, while the other allows four pins to trigger it.
gotcha so the external is an 'only' with the other is 'either/or'