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- Path: sparky!uunet!mcsun!sunic!dkuug!diku!torbenm
- From: torbenm@diku.dk (Torben AEgidius Mogensen)
- Newsgroups: comp.sys.acorn
- Subject: Re: Acorn Press Release 6 of 8 (A3000 range)
- Message-ID: <1992Sep1.152535.15359@odin.diku.dk>
- Date: 1 Sep 92 15:25:35 GMT
- References: <18106@acorn.co.uk>
- Sender: torbenm@freke.diku.dk
- Organization: Department of Computer Science, U of Copenhagen
- Lines: 19
-
- aglover@acorn.co.uk (Alan Glover) writes:
-
- >The ARM 250 was purpose designed for Acorn and
- >integrates an ARM 2 processor with the other controller
- >chips in one small device.
-
- How will this affect the possibility of later upgrade to an ARM 3 or
- equivalent? Unless an "ARM 350" is developed, upgrading could be very
- expensive (as the upgrade has to replace the controller chips).
-
- A good (and not unrealistic?) solution would be a single chip with an
- ARM 3 equivalent, write buffer (as on the ARM 600), controller chips
- and FPU, clocked around 40 MHz. Improved versions of VIDC and MEMC
- would be handy, but they may be hard to use without modifying larger
- portions of the software and hardware. I don't think Acorn will use
- MEMC 2. A more realistic solution would be something closer to MEMC 1a,
- but using a two level page table similar to MEMC 2.
-
- Torben Mogensen (torbenm@diku.dk)
-