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Article #21098

Hardware parity checking...How?

#21098
From: Michael C Miller
Date: Sat, 08 Apr 1989 04:17
14 lines
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I am very interested in knowing the exact method for pairity checking
in an AT. My board ( dtk 12MHz) uses 74s280's in the memory area.

They should be fast enough to produce a parity bit at each write and
read but how do they tell the system of errors. How do they correct?

I understand odd /even parity concepts at a basic level. Is it as simple
as this on the AT's? What are other possible hardware implementations
for parity checking?

Assuming good,fast memory chips,where can errors originate onthe
motherboard?

Thanks...					sans
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!ames!pacbell!att!occrsh!uokmax!mcmiller
From: mcmiller@uokmax.UUCP (Michael C Miller)
Newsgroups: sci.electronics
Subject: Hardware parity checking...How?
Message-ID: <2862@uokmax.UUCP>
Date: 8 Apr 89 04:17:25 GMT
Reply-To: mcmiller@uokmax.UUCP (Michael C Miller)
Distribution: usa
Organization: University of Oklahoma, Norman, OK
Lines: 14