Phillip wrote: > So I wonder if I choose to put the clrwdt instruction at the end of > my ISR and execute fewer clrwdt instructions will I consume less > power? (I think it might but it will be a trivial amount) So you're saying you think executing a CLRWDT instruction takes more power per cycle than executing a GOTO instruction? I doubt you could measure the difference, but I have no idea why you think CLRWDT is more power hungry than a GOTO. > In the data sheet it claims it is in mapped bank 1 and and bank 3 but > I can only get the timer0 prescaler out of the picture if I write to > bank 3 for some reason bank 1 does not seen to allow access to the > OPTION_REG on this part. Nonsense. You are doing something else wrong. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist