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- Newsgroups: comp.sys.amiga.hardware
- Path: netnews.upenn.edu!dsinc!scala!news
- From: dave.haynie@scala.com (Dave Haynie)
- Subject: Re: Universal Serial Buss
- Sender: news@scala.scala.com (Usenet administrator)
- Message-ID: <1996Apr2.213427.6993@scala.scala.com>
- Date: Tue, 2 Apr 1996 21:34:27 GMT
- Reply-To: dave.haynie@scala.com (Dave Haynie)
- References: <4j2kn1$86o@janus.cqu.edu.au> <4j601f$t27@serpens.rhein.de> <4j7lm1$ku9@janus.cqu.edu.au> <1996Mar26.233001.10361@scala.scala.com> <65825472@faba.han.de>
- Nntp-Posting-Host: gator
- Organization: Scala Computer Television, US Research Center
-
- In <65825472@faba.han.de>, "Florian Faber" <faber@faba.han.de> writes:
-
- >DH> USB is, potentially, a great replacement for serial and parallel
- >DH> ports, mouse and keyboard ports, that kind of thing. It would be great
- >DH> to take all that nonsense and reduce it to a single port, and then
- >DH> just run a USB wire to whatever needs it. But don't mistake USB, it's
- >DH> not fast for intense work like video.
-
- >It's not just only _not_ fast for video, it's pretty useless for video
- >and audio applications.
-
- I wouldn't run audio or video over my mouse, keyboard, serial, or
- printer port. That doesn't make these useless ports.
-
- >DH> FireWire, on the other hand, isn't cheap, but it's up at a whole
-
- >FireWire is only one implementation of the IEEE 1394 bus system. I wonder
- >why people mix up FireWire and IEEE 1394.
-
- FireWire was Apple's original work, which they submitted to the IEEE
- committee for standardization. The result is IEEE 1394. Folks use the
- terms interchangably, even if that's not quite correct. Probably
- because "FireWire" sounds so much cooler than Yet Another IEEE magic
- decoder ring number.
-
- >A 1394 physical interface device will cost less than $10 (1000 quant.),
- >so it's pretty cheap.
-
- When? Folks are selling PCI boards for quite a bit. TI has a chip set
- that's just under $100 in some quantity. Sure, this will come, but
- it's far more likely to hit low cost once the controller is
- intergrated into normal system chips. Thanks to the small pin count,
- any pad-limited interface chip with full bus access is a good place to
- stick a IEEE 1394 controller.
-
- >DH> different level. It's faster, raw-transfer rate anyway, than SCSI-2
- >DH> FS, and that's in its slowest form, 100mb/s. And its speced up to
- >DH> 400mb/s, maybe more once the IEEE got through with it. I don't know
-
- >Actually it's speced up to 1Gbit/s and it's fully backwards comptaible.
-
- Is it. The last I had heard, the specs only called for 400Mbps using
- today's signalling conventions. 1Gbps would be possible, but they
- would have to use different driver technology. I followed it pretty
- closely early on, but haven't recently, so maybe this has changed.
-
- Dave Haynie | ex-Commodore Engineering | for DiskSalv 3 &
- Sr. Systems Engineer | Hardwired Media Company | "The Deathbed Vigil"
- Scala Inc., US R&D | Ki No Kawa Aikido | info@iam.com
-
- "Feeling ... Pretty ... Psyched" -R.E.M.
-
-