RB Change Interrupt understanding

[HenrikOlsson]

Hi,
That's how I interpret it as well. If you reset the RBIF without reading the port it would simply get the set again because the mismatch condition persists. Read the port to clear the mismatsh, then reset the RBIF.

/Henrik.

[Charles Linquis]

You need to read the port in order to give the device a sample that it can use for later comparison.

[PickyBiker]

Thanks Henrik and Charles. I am gradually getting an understanding of these PIC devices. This particular issue was troubling me because I wasn't sure if I was interpreting the datasheet correctly.

Thanks again.