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- From: daveh@cbmvax.commodore.com (Dave Haynie)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Networking? WHY?!?
- Message-ID: <37020@cbmvax.commodore.com>
- Date: 13 Nov 92 01:36:01 GMT
- References: <jbono.084a@tension.UUCP> <1992Nov12.194136.21183@fcom.cc.utah.edu>
- Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
- Organization: Commodore, West Chester, PA
- Lines: 32
-
- In article <1992Nov12.194136.21183@fcom.cc.utah.edu> val@news.ccutah.edu (Val Kartchner) writes:
- >jbono@tension.UUCP (John Bono) writes:
-
- >2) How much would it be to add a port than can do AppleTalk?
-
- Not a whole lot. But if you're not going for a standard like Ethernet, why
- bother with something non-standard like AppleTalk that's wicked slow. There
- are plenty of alternatives between the two.
-
- > I'd like ACCESS.bus which provides 14 peripherals on one connector, and
- > I hope that Commodore chooses it. (ACCESS.bus provides for only one
- > computer on the bus, but I assume that third-parties will provide
- > bridge connections.)
-
- Access.Bus is just the Phillip's I^2C serial bus with a definitions for an
- external phone-jack style connector and apparently some new protocol layers.
- I^2C is a rather novel 100kHz serial bus originally developed for low cost
- connection of peripheral chips. You might find it in your microwave oven,
- car stereo, or TV. It's kind of handy to have around in a computer system
- these days since many "multimedia" oriented devices hook up to it. Once you
- have it in your system anyway, the Access.Bus idea kind of naturally follows.
- The intention of Access.Bus is basically as a "desktop bus" idea, it's too
- slow for a network, even by AppleTalk standards. It does permit multiple
- masters, though, though a very weird bus arbitration protocol: the cool thing
- about I^2C is that Phillips manages to get a bus that can address 128 devices
- with wait state and multimaster support in only two wires.
-
- --
- Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
- "The Crew That Never Rests" {uunet|pyramid|rutgers}!cbmvax!daveh BIX: hazy
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