I can't help you with working RC5 code, but here's a Microchip application note that gives some info about using a 10F206 to build a small IR remote transmitter. It talks a little about RC5 and Sony 12 formats.

http://ww1.microchip.com/downloads/e...tes/01064A.pdf

I've got some working test code that receives Sony12 and displays the button pressed on an LCD display, but that probably won't be much help to you.
I haven't learned RC5 yet....



steve