Path: 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 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