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Path: utzoo!watmath!clyde!caip!cbmvax!daveh
From: daveh@cbmvax.cbm.UUCP (Dave Haynie)
Newsgroups: net.arch,net.micro.68k
Subject: Re: CSA 68020 piggyback board
Message-ID: <481@cbmvax.cbmvax.cbm.UUCP>
Date: Wed, 2-Jul-86 12:32:03 EDT
Article-I.D.: cbmvax.481
Posted: Wed Jul  2 12:32:03 1986
Date-Received: Thu, 3-Jul-86 07:03:07 EDT
References: <236@msunix.UUCP>
Organization: Commodore Technology, West Chester, PA
Lines: 35
Xref: watmath net.arch:3642 net.micro.68k:1716

> Keywords: Anyone using one?
> Xref: cbmvax net.arch:878 net.micro.68k:163
> 
> Now for an entirely different subject...
> 
> Today our directory of hardware plopped a CSA 68020 piggyback board
> on my desk and asked me to play with it a bit to see if it would
> work in our system (a Via Visuals Design Center).  For those of you
> who have never seen one of these (the CSA board, I'm sure none of you
> have seen a Via Visuals Design Center), it is a 3" by 4" pc board with
> an 020, an 881, a few resistors and caps, and three PALs on it, which you
> can plug into a 68010 socket.  I suppose the PALs have all the logic
> to generate the DSACKs, etc for the 020. ...
> 
> "If we did it like everyone else,	  Jonathan Hue
> what would distinguish us from		  Via Visuals Inc.
> every other company in Silicon Valley?"	  sun!sunncal\
> 						      >!leadsv!msunix!jon
> "A profit?"				amdcad!cae780/

I've never used one myself, but quite a few people are using these boards
in Amiga computers.  I've heard no complaints about any electrical problems
with the board, though you might check around.  99.9% of the Amiga software
tried works fine, but the Amiga has Exec calls for examining things like
the exception stack to create processor independent code; I've heard that
the board doesn't work in several other 68000 based machines.

-- 
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Dave Haynie    {caip,ihnp4,allegra,seismo}!cbmvax!daveh

   A quote usually goes here, but its currently being rennovated.

	These opinions are my own, though for a small fee they be yours too.
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