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Article #22629

Re: bus on new IBMs

#22629
From: Dirk Grunwald
Date: Mon, 26 Feb 1990 22:35
42 lines
1571 bytes
at a local presentation, they said the protocol was:

Level 1:
			---------------------------------
	Addr		| AAA	|	| AAA   |       |
			---------------------------------
	Data		|	| DDD	|       | DDD   |
			---------------------------------
			^       ^
			+-------+
			  100ns

	Data is ready every 200ns

			
Level 2:
			---------------------------------
	Addr		| AAA	|	|	|       |
			---------------------------------
	Data		|	| DDD	| DDDD  | DDD   |
			---------------------------------
			^       ^
			+-------+
			  100ns

	Data is ready every 100ns, streaming only

Level 3:
			---------------------------------
	Addr		| AAA	| DDD	| DDD	| DDD	|
			---------------------------------
	Data		|	| DDD	| DDD	| DDD   |
			---------------------------------
			^       ^
			+-------+
			  100ns

	Two data are ready every 100ns, streaming only

their level 4 plan called for dropping the clock cycle to 50ns I
think.
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Message-ID: <17449@boulder.Colorado.EDU>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!sunybcs!boulder!grunwald
References: <WSD.90Feb22202840@pitman.cs.brown.edu> <gZtMl3q00j8586TAoM@cs.cmu.edu> <1990Feb26.185737.9409@ultra.com>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!sunybcs!boulder!grunwald
From: grunwald@foobar.colorado.edu (Dirk Grunwald)
Newsgroups: comp.arch
Subject: Re: bus on new IBMs
Message-ID: <17449@boulder.Colorado.EDU>
Date: 26 Feb 90 22:35:39 GMT
References: <WSD.90Feb22202840@pitman.cs.brown.edu>
 <gZtMl3q00j8586TAoM@cs.cmu.edu> <1990Feb26.185737.9409@ultra.com>
Sender: news@boulder.Colorado.EDU
Reply-To: grunwald@foobar.colorado.edu
Organization: University of Colorado at Boulder
Lines: 42
In-reply-to: casey@ultra.com's message of 26 Feb 90 18:57:37 GMT