68020 vs 68EC020

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Tue May 25 18:50:21 1999

On May 25, 21:47, Tony Duell wrote:
> Subject: Re: 68020 vs 68EC020
> >
> > An A1200 question: what's the difference between the 68020 and 68EC020?
>
> I believe the 'EC' version is for Embedded Control, and lacks some of the
> functions of the plain 68020 (probably MMU-related or something).

I'm not sure of the other details, but "EC" = "Embedded Control", as you
say. According to my Motorola cribsheet, it's a 68020 with only 24-bit
addressing, without the dynamic bus sizing, ands restricted speed range.
 It does have the co-pro interface, though, and probably most if not all of
the instruction set (the crib sheet doesn't get very detailed).

-- 
Pete						Peter Turnbull
						Dept. of Computer Science
						University of York
Received on Tue May 25 1999 - 18:50:21 BST

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