Re: PLA for B Series

From: Michał Pleban <>
Date: Thu, 23 Dec 2010 16:13:24 +0100
Message-ID: <>

W dniu 2010-12-23 15:59, Hoffmann-Vetter, Martin pisze:

> i've compare the PLA 906114-04 and 906114-05 from Edward D. Shockley at
> It's seem to be identically. Only
> some pins are changed.
> At the same page i read the prototype co-processor board only work with the
> pla of the hi-profile 906114-05. Why that? Is that an error? Or ist my work
> to compare these PLAs buggy? Or the jedec files from Edward are bad?

There are reports that the 8088 board actually works with both PLA
versions. It is suspected that actually the BASIC version is what is
important to boot MS-DOS on this board, not the PLA.

Actually I am going to read both PLAs directly after Christmas, it I
build a suitable adapter. If I manage to do this, I will post the
comparison results here.


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Received on 2010-12-23 16:00:27

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