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From: ned@john.ksr.com (Kittlitz)
Newsgroups: comp.arch
Subject: Re: AM29000 memory management (was flame)
Message-ID: <85@ksr.UUCP>
Date: Tue, 28-Apr-87 08:13:04 EDT
Article-I.D.: ksr.85
Posted: Tue Apr 28 08:13:04 1987
Date-Received: Thu, 30-Apr-87 00:43:48 EDT
References: <67@bernina.UUCP> <27207@rochester.ARPA> <16331@amdcad.AMD.COM>
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Reply-To: ned@ksr.UUCP (Kittlitz)
Organization: Kendall Square Research, Cambridge MA
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Another advantage of putting the M bits in the memory controller is
powerfail recovery. If you keep your memory board backed up, the
modified information stays for free. If you have substantial
modularization, there is no longer a need to keep the processor on
battery power. (All this assumes that you have some small amount of time
to save register state, etc. when powerfail is first detected.)