Ahhh! OK! I thought interrupts were things you could assign to any pin, that is all. I was looking to closely at this to notice that RB0 had an assigned function 'INT'..

I have a proto board made up that runs rb4 and rb5 off to a post for easily attaching pins to - the reason I wanted to use RB4.. I can tie off to RB0 but it is a little soldering now, that's all. Btw, RB0 is pin #6 on the F88. Pin 4 is MCLR.

One other thing - 'enable pull up resistor' - do I need to tie a 1K ohm resistor from VDD to the pin also, or is this a software switch?

Tom