I have been learning the PIC 16C84 with the book Easy PIC 'n'. It has been excellent, and I have been learning a lot. I do have one question though. When dealing with the timer and the prescaler, the book says that all instructions that write to the TMR0 register will clear the prescaler to prepare it for the division of the input signal. If the prescaler is cleared, then how is it used. Please help me!!! -Christopher Parker E.R.T.W.