piclist 2003\02\22\160352a >
Thread: Pin won't turn off properly
www.piclist.com/techref/ubicom/devices.htm?key=sx
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face BY : Russell McMahon email (remove spam text)



> I can't see why you would EVER risk a RMW unless there
> was no possible way to get the timing that tight by
> writing direct to the whole port. Shadow register. :o)
> -Roman

That about summarises what I was trying to say. With the qualification that
some processors explicitly allow you to do this by "proper" hardware design.


       iv    RMW

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Subject (change) Pin won't turn off properly

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