John W. Temples, III wrote: > In 16-bit mode, TMR0H is just a latch register; you can't access the > "real" TMR0H. The simulator shows only the latch register. > Thanks for replying. OK - I understand that, thanks. But shouldn't I see the 16-bit SFR TMR0 performing its 16-bit count? In any case, the interrupt never occurs ( Regards, Phil. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist