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Re: 6502 CPU Schematics



"Henry S. Courbis" <apl2research(a.t.)comcast.net> wrote:

> Hello Marcus.
> 
>> I assume it is done "in the spirit of Woz" and a microcontroller
>> would be overkill (if I judge its functions right).
> 
> Yeah, that does make sense.  The more I think about it, I bet Michael is
> correct and it is an ASIC.
> 
> 
>> And there is also a rather recent albeit short discussion here:
>>
http://groups.google.com/group/apple2list/browse_thread/thread/351ad46a7bd2d06?fwc=1
>> Maybe contacting David Craig for the engineering specification would
>> be a good idea...
> 
> Bingo!  Somehow I missed that one.  I'm off to email him right now. 
> Thanks!

Also, there are the IWM and SWIM patents (4,742,448 and 5,151,985,
respectively) that might be helpful.  I think Bill Garber has the PDFs of
them, but I also made my own from the USPTO site, so if you cannot find
them, I'll e-mail them to you.

-- 
--  Jerry