Article View: sci.electronics
Article #21487Re: SRAM Battery backup
From: David Chapman
Date: Wed, 24 May 1989 03:58
Date: Wed, 24 May 1989 03:58
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In article <669@serene.UUCP> gbell@pnet12.cts.com (Greg Bell) writes:
>Yet another question, aimed at David C: if the power monitor chip pro-
>tects the RAM by putting in in low power mode (disabling one of the CS lines),
>will this solve the problem of the rest of the circuit getting power through
>the data lines? I assume this can only happen through output lines and not
>input lines.
Yes, the problem is driving through the output lines. Disabling the RAM
should keep you out of trouble.
>(By the way, DavidC, could you send the CRC code you mentioned? )
Coming up... (sorry it took so long to respond; we had a major network
upgrade last week). It's all in the next post (those of you who don't
care are hereby warned).
David Chapman
{known world}!decwrl!vlsisj!fndry!davidc
vlsisj!fndry!davidc@decwrl.dec.com
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!ames!apple!voder!pyramid!leadsv!practic!vlsisj!davidc From: davidc@vlsisj.VLSI.COM (David Chapman) Newsgroups: sci.electronics Subject: Re: SRAM Battery backup Summary: here's a CRC Keywords: CRC Message-ID: <15231@vlsisj.VLSI.COM> Date: 24 May 89 03:58:25 GMT References: <669@serene.UUCP> Reply-To: davidc@vlsisj.UUCP (David Chapman) Organization: VLSI Technology Inc., San Jose, CA Lines: 18