I have a project that I am developing that I will eventually want to
talk various protocols -- RS232, IIC, SPI, and perhaps RS485 or even
RS422.  The chip has a simple task that is being performed off of an
INT from the timer (<50 instructions every 50mS or so), so there is a
lot of horsepower left over.  My first thought was to use a 16C55 and
to make the chip in the different "flavors" of communication.  But I
am now thinking about using the 16C63/65 and using some of the
left-over input pins as a switch selection for the input protocol.
Thus, I would read the inputs at POR and then talk that language.  I
have no experience with the `6x so I don't know how easy/hard it is to
implement the various interfaces in its hardware.

Do you think that it is reasonable to have such a POR communication
select on a `63 or `65?  Experiences?  Code?

Thanks,

==
Michael

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When the way of the Tao is forgotten, kindness and ethics must be taught.
Men must learn to pretend to be wise and good.  --  Lao Tzu
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