Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request
From: roy@phri.nyu.edu (Roy Smith)
Newsgroups: comp.sys.sun
Subject: Re: Floating point co-processors for Sun 3/50
Keywords: Hardware
Message-ID: <3856@brazos.Rice.edu>
Date: 8 Dec 89 06:38:32 GMT
Sender: root@rice.edu
Organization: Sun-Spots
Lines: 17
Approved: Sun-Spots@rice.edu
X-Refs:  Original: v8n205, Related: v6n17
X-Sun-Spots-Digest: Volume 8, Issue 220, message 6 of 19

In article <3250@brazos.Rice.edu> sa346@city.ac.uk (Andy Lack) writes:
> X-Sun-Spots-Digest: Volume 8, Issue 205, message 9 of 19
> 68881RC16A. I think this is the 16MHz version which is needed for a 3/50.
> Could anyone confirm if this chip (or the clock speed) is OK for the 3/50.

Yup, you want MC68881-RC16A.  To be picky, make sure you get mask A93N or
later (not a problem; I think every 68881 made within the past several
years has been A93N; earlier dies had some minor bugs).  Dig through the
old SUN-SPOTS archives to find detailed instruction I wrote up a few years
ago for ordering and installing the chips.  It's quite straight-forward.

[[Ed's Note: It took some looking, but his article is in v6n17 -bdg]]

Roy Smith, Public Health Research Institute
455 First Avenue, New York, NY 10016
{att,philabs,cmcl2,rutgers,hombre}!phri!roy -or- roy@alanine.phri.nyu.edu
"The connector is the network"