Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!seismo!rochester!kodak!elmgate!jdg
From: jdg@elmgate.UUCP (Jeff Gortatowsky)
Newsgroups: comp.sys.m68k,comp.sys.amiga
Subject: MC68020, Versions, and the Amiga
Message-ID: <704@elmgate.UUCP>
Date: Sun, 9-Aug-87 20:15:39 EDT
Article-I.D.: elmgate.704
Posted: Sun Aug  9 20:15:39 1987
Date-Received: Mon, 10-Aug-87 03:44:39 EDT
References: <5930001@hplsla.HP.COM> <963@oakhill.UUCP>
Reply-To: jdg@aurora.UUCP (Jeff Gortatowsky)
Organization: Eastman Kodak Company, Rochester, NY
Lines: 26
Xref: mnetor comp.sys.m68k:541 comp.sys.amiga:7275

I hope someone at Motorola or Commodore can help me with this.....

First.  I have a XC68020RC12 and an MC68881RC12A.  What does that mean?
Umm... what I mean is, is XC a bad omen?  The 881 seems to be a production
version.

The mask (or version, or whatever) on the 020 is 2A23G8512.  On the '881
the mask is 1A93N8626.  Are these good parts?  Will they function together?
I once heard a rumor (fact?) that early versions of the 020 wouldn't play
with the 881 and had barrel shifter bugs.  True? False?

Ok,ok, what's the point?  I'd like to take the two (020 & 881) and put them
on a proto board and replace the '010 in my Amiga with them (at 7.16mhz). 
A).  Can anyone give me a schematic for doing this?
B).  Is my CPU any good?  If not what's it's problem?  Can I 'trade' it
     in on a 'good' one?  What's 'XC' mean?  Xperimental?


I got the 881 as a sample.  The 020 through a co-worker  Any help out there?


-- 
Jeff Gortatowsky       {seismo,allegra}!rochester!kodak!elmgate!jdg
Eastman Kodak Company  
These comments are mine alone and not Eastman Kodak's. How's that for a
simple and complete disclaimer?