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Thread: Asynchronours Serial I/O - AN555
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face BY : John Payson email (remove spam text)



> Actually, sharing the oscillator doesn't buy you any speed; you can
> go just as fast with separate clocks as you can with a single clock.

Sure it buys you speed.  Once you've gotten the two PICs synchronized,
they can exchange unlimitted amounts of data, bidirectionally, at a rate
of 1 byte per 17 clocks (if the ports are located favorably).  By
contrast, if you use non-synchronized clocks you couldn't do better than 3
clocks/bit, and even then you'd have to resync yourself at most every 30
bits or so.
<199708201418.JAA06282@Kitten.mcs.com> 7BIT

In reply to: <199708200449.XAA08360@dfw-ix7.ix.netcom.com>
See also: www.piclist.com/techref/io/serials.htm?key=serial
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