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- Path: sparky!uunet!ogicse!uwm.edu!zaphod.mps.ohio-state.edu!usc!rutgers!cbmvax!grr
- From: grr@cbmvax.commodore.com (George Robbins)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: '030EC - Uses for MMU on Amigas?
- Keywords: 68030EC, 68030, GVP A530
- Message-ID: <37195@cbmvax.commodore.com>
- Date: 21 Nov 92 18:57:30 GMT
- Article-I.D.: cbmvax.37195
- References: <7445@stan.xx.swin.oz.au>
- Reply-To: grr@cbmvax.commodore.com (George Robbins)
- Organization: Commodore, West Chester, PA
- Lines: 31
-
- In article <7445@stan.xx.swin.oz.au> h8eg083@stan.xx.swin.oz.au (Darren Gower) writes:
- > I recently posted a request for info on the GVP A530 accelerator combo,
- > I can't be sure whether it got out (feeder problems).
- >
- > Anyway, I discovered that it has the '030EC. A (possibly unknowledgable)
- > friend is of the opinion that the MMU is not disabled in these units, just
- > unwarranted. I always thought it was disabled in the 'EC. Could someone
- > clarify?
-
- The situation is that Motrola doesn't guarantee it to be present and working.
- I would expect it to be disabled by internally grounding the MMU disable pin,
- but the way the part is specified they aren't actually required to do that.
-
- > Further, just how much use is the MMU in an AmigaDOS environment? I know
- > enforcer uses it (and I do a fair amount of 'C' programming), but is it
- > worth forking out approx. $400 more to get it just for that? Are there any
- > other uses?
-
- Proably not (worth it).
-
- > Another thing - the 68030 that is supplied with the '530 is a 40Mhz job.
- > Is this overclocked or is Motorola actually producing 40Mhz CPU's?
-
- I don't know whether it is over clocked or not, but Motorola does offer
- a 40 MHz speed grade for the 68030 and 68EC030. I think the EC030 is
- actually only available in 25 MHz and 40 MHz speed grades...
-
- --
- George Robbins - now working for, work: to be avoided at all costs...
- but no way officially representing: uucp: {uunet|pyramid|rutgers}!cbmvax!grr
- Commodore, Engineering Department domain: grr@cbmvax.commodore.com
-