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From: croft@csusac.csus.edu (Steve Croft)
Newsgroups: comp.arch
Subject: Re: Moto 68451 (was Re: SunMMU history)
Message-ID: <1991Jan25.164831.26638@csusac.csus.edu>
Date: 25 Jan 91 16:48:31 GMT
References: <13875@encore.Encore.COM> <1991Jan23.154244.8322@motaus.sps.mot.com> <3149@crdos1.crd.ge.COM>
Organization: California State University, Sacramento
Lines: 13

In article <3149@crdos1.crd.ge.COM> davidsen@crdos1.crd.ge.com (bill davidsen) writes:
>In article <1991Jan23.154244.8322@motaus.sps.mot.com> skipper@motaus.sps.mot.com (Skipper Smith) writes:
>
>| The 68451 was an MMU designed to be used with the 68010.  It was a segmented
>| MMU, real slow, and has generally been surpassed in every category (performance,
>| speed, capability, etc...) by the 68851 and the MMU built into the 68030.  I
>
>  Was this the one used in the unix-pc/7300/3b1/safari box? Both of mine
>have gone to new homes and I can't check easily.

The 7300 has a MMU built from programmed logic chips...

steve