listen dude i already downloaded the 484 page pdf on this chip. It's alot of information to chew. I have another newer piece of hardware that is reprogrammable via a serial cable. the only difference of the board is that there is a maxium max323e so i know all i gotta do is make a board with that chip and p/s and somehow solder some really small wires to the pins on the chip, program it, then unsolder it. I think there are only 3 connections to the cpu but they pop up under the chip via thru holes so i dont know where they go. According to the pdf it looks like it might be RB5,RB6,RB7? can someone confirm this?