home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!sun-barr!rutgers!cbmvax!mks
- From: mks@cbmvax.commodore.com (Michael Sinz)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: AA chipset in the A3000 -> I expect it!
- Message-ID: <34814@cbmvax.commodore.com>
- Date: 2 Sep 92 12:13:47 GMT
- References: <Mike_Noreen.07m8%cave@sweden.eu.net>
- Reply-To: mks@cbmvax.commodore.com (Michael Sinz)
- Organization: Commodore, West Chester, PA
- Lines: 33
-
- Mike_Noreen%cave@sweden.eu.net (Mike Noreen) writes:
- >In a message dated Mon 30 Aug 92 16:20, Cpca@marlin.jcu.edu.au (colin Adams
- >wrote:
- >
- > CA> It may make some kind of sense though. Under the new systems you
- > CA> have to enquire to find out whether there is 2x or 4x speedup.
- > CA> Adding
- > CA> the new chips to the A3000 would only gain 2x speedup due to the
- > CA> different type of RAM chips needed for the 4x speedup. I doubt C=
- > CA> would
- > CA> cripple their new machines by using memory that would only give a 2x
- > CA> speedup, so this may imply you can add the new chips to the 3000, but
- > CA> just not get full utilization.
- >
- >Hm? What you need to get 4x speedup is a 32-bit bus and page-mode DRAMs
- >chip-mem. The A3000 has both.
- >IF the AA-chipset ever becomes available for the A3000, it WILL be able to
- >use all the colours/resolutions available.
-
- Well, guys, it does not. The Custom Chip accesses to CHIP RAM is 16-bits.
- The number of pins == 16-bits. The controller (AGNUS) does not handle
- more nor does it do page mode.
-
- It is like buying a 4-cylinder car and wanting to upgrade to 8-cylinders by
- replacing the pistons. (For those that don't know: this does not work)
-
- /----------------------------------------------------------------------\
- | /// Michael Sinz - Senior Amiga Systems Engineer |
- | /// Operating System Development Group |
- | /// BIX: msinz UUNET: mks@cbmvax.commodore.com |
- |\\\/// |
- | \XX/ "I think not." said Ren'e Descartes, then he vanished. |
- \----------------------------------------------------------------------/
-