> can someone tell me the name of the transmission protocol that is self
> clocking and where can I find any info on it.

Manchester

eg

http://www.thelinuxreview.com/howto/intro_to_networking/c4511.htm

Google for +self-clocking +manchester +pic to find other pages

I don't think there's an example at www.piclist.com

http://www.piclist.com/techref/microchip/serial.htm

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