Just a point of clarification.
I assume that with an 8 bit timer on a 2313 at 4Mhz with the prescaler set at one I would trigger a timer interrupt at 4000000/256 (every 64 microseconds) and that at a prescale of 8 it would be calulated as 4000000/(256*8) - every 512 microseconds. Is that correct?
With a 16 bit timer the math would be 4000000/65536 (every 16msecs) and so on... True?
If not, please explain how the prescaling works and how to calculate timer interrupts.