Re: Kit-Based Lisa

From: Kevin Keith <krfkeith_at_email.domain.hidden>
Date: Mon, 17 Mar 2008 17:42:43 -0700 (PDT)

Well, where could I find a list of chips? I imagine that there wouldn't be any sort of prgrammable logic on it.

On Mar 17, 7:11 pm, James MacPhail <g..._at_email.domain.hidden> wrote:
> >Are there any custom chips in the Lisa?
> Only one comes to mind: There is a mask programmed COP421 microcontroller
> on the I/O board that handles keyboard, mouse, and RTC. We don't have the
> source code, and no-one has extracted the binary AFAIK, although attempting
> that is on my to-do list.
> The Lisa 2/10 version has a second custom chip on the I/O board, which is
> much like the IWM in the original Mac.
> Some other chips are obsolete and may be quite difficult to find or very
> expensive, especially in quantity.
> HTH,
> James

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