Re: bus on new IBMs

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Article #22598

#22598

From: Richard Oxbrow
Date: Sun, 25 Feb 1990 03:12

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>>that doubled its performance from 20Mb/s to 40Mb/s.  There is a
>>For comparison, the SS1's Sbus is 100Mb/s, I think.
 
>For the case of the SBus on a 16 2/3 Mhz bus, a'la SS1
>
>	29 Mb/s @16 2/3Mhz "burst" thru' put (DMA)
>	25 Mb/s @16 2/3Mhz "burst" thru' put (DVMA)
 

The SS1 is actually	^^^^^^^^20 MHz , my mistake .. (thanks dc@sun.com)
the rest of the numbers are correct (see. page 25, SBus Specification Rev.A)

	richard ..

#PS. And   Mb/s = mega BYTES per second (next time I will use MB/s)









Richard Oxbrow			   |ACSnet	raob@mullian.oz
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!munnari.oz.au!mullian!raob
From: raob@mullian.ee.mu.oz.au (Richard Oxbrow)
Newsgroups: comp.arch
Subject: Re: bus on new IBMs
Message-ID: <3239@munnari.oz.au>
Date: 25 Feb 90 03:12:58 GMT
References: <WSD.90Feb22202840@pitman.cs.brown.edu> <3236@munnari.oz.au>
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Organization: Dept. of Electrical Engineering, University of Melbourne
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