Mitch,

> I haven't tried this yet, but it looks like, from the 16C76 data sheet,
that
> you meant that TXEN (not SPEN) should be cleared to tristate the TX pin.
I
> think clearing SPEN would disable both sections of the UART.

Yes. You're right, it is the TXEN bit that I was refering to.  That's what I
get for relying on my memory. Sorry.

Kelly Kohls, N5TLE
Dallas, Texas
Homepage: http://www.qsl.net/n5tle/
There's never enough time to do it right, but plenty of time to do it over.

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