Does anyone here know where I can get a Mega // chip (with, hopefully, a pin-out) without having to cannibalize an Apple // GS motherboard? I’ve been contemplating a project for years, and still no easy solution.
The pinout is relatively easy: it’s in the circuit diagram.
But to get a chip, I think someone somewhere needs to take it out of a IIgs. Preferably a dead one! (Or else someone needs to make an FPGA recreation, which would be technically possible but probably rather difficult to get exactly right.)
You might try here:
Thanks for the manuals. It seems like either way won’t be easy.
Thanks for the link. I left a message, and hopefully they’ll be able to help me out.