I'm pretty sure you can see what those circuits do by looking at the Apple
II (or Plus) motherboards- at least for the IIe. :)
-Pete
On Mon, November 5, 2012 3:24 pm, Eric Smith wrote:
Alexandre Souza - Listas wrote:
If anyone can find a logic board of a IIc (first or second version,
mine is the 5 1/4 FDD type) that works, I'm in! :o)
And I'd like a IIc logic board that is bad!
Or, for that matter, bad IIc+, IIe, or IIgs logic boads, or even good
ones, or just the ASIC chips from them.
The plan is to remove the Apple ASICs and decap and photomicrograph
them. Especially interested in:
IIe: HAL, IOU, MMU
IIc(+): HAL, IOU, MMU, IWM
IIgs: FPI, Mega II, Slotmaker, VGC, IWM, RTC, ADB GLU, ADB
microcontroller, Sound GLU, DOC (Ensonic)