Re: A89: Backups

To: assembly-89@lists.ticalc.org
Subject: Re: A89: Backups
From: Charles Vaughn <cyberdeity@pdq.net>
Date: Wed, 16 Dec 1998 12:47:59 -0600
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
References: <7447d82e.36774fb1@aol.com> <3677C2DC.8A0@mail.dotcom.fr> <3677D2EB.10170CFB@hem.passagen.se>
Reply-To: assembly-89@lists.ticalc.org


Ok, ram uses a different storage technique than rom.  The way data is stored in the
flash rom is such that it won't lose its charge when powered is turned off to it.
All flash rom is is the rom similar to the rest of the calcs but with an integrated
reproggramer.

Olle Hedman wrote:

> I think he asked how a flash rom is keeping its data without power...
> that is much more advanced to explain...
> I don't have the construction and theory of flashroms in my head...  maybe i
> could go try to dig it up somewhere :)
>
> //Olle
>
> Xavier VASSOR wrote:
> >
> > >
> > > > I'd guess that it doesn't.  If the flash ROM erased where would it get the
> > > >  data for v1.0 from?
> > > >
> > > >       --Nate
> > > >
> > >
> > > I wonder how it keeps its information without power?
> > This is quite simple I think, anyway I may be wrong:
> > The RAM data is saved because of the Lithium battery; if you remove it,
> > memory will be erased.
> > The ROM is in Flash memory, so there is no pb about it
> >
> > Xavier VASSOR
> > ---The Doors Team
> > E-mail:xvassor@mail.dotcom.fr
> > Doors Homepage: http://www.multimania.com/doorsos
> > ICQ:10241721

References:

Re: A89: Backups

From: Daniel7073@aol.com

Re: A89: Backups

From: Xavier VASSOR <xvassor@mail.dotcom.fr>

Re: A89: Backups

From: Olle Hedman <oh@hem.passagen.se>