> Well the PWM is out. Are you trying to say that we only need
> the 20ns? What if we are off a little bit and the reset pulse is only
> 19ns long. Wouldn't it be better to use a longer pulse to insure
> that we always meet that 20ns requirement?

The instruction cycle time is 200ns, so you can't have a pulse shorter
than that. The shortest safest piece of code is

bsf pulse
nop
bcf pulse

which will give you at least 400ns

Note the NOP in the middle. Because of the read-modify-write
issue on the PICs without an output latch, a NOP is recommended

http://www.piclist.com/techref/readmodwrite.htm

And my real-world submission to the SX list

http://www.piclist.com/techref/scenix/sxrmw.htm

Joe
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