At 12:12 PM 3/27/97 +0100, you wrote:
>I found in the 16C84 datasheet that when loading the TMR0 with a value,
>we have to wait two cycles for it to synchronise. Do we have to reload
>the TMR0 with a new value (the same in this case) each time it rolls
>over 0? If I remember, this is not needed with the Intel 8051?

You wait only when you reload it.  It wraps around 0 just fine all by
itself, no inserted delays.

If you have the prescaler assigned to the RTCC, I forget if it waits 2
prescaled or unprescaled, but it seems that it's only 2 unprescaled, ie, 8
ticks of the incoming oscillator (2uS at 4MHz).

Andy

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