Re: TI-H: Internal Memory Expansion

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Internal Memory Expansion
From: "David Knaack" <dknaack@hotmail.com>
Date: Thu, 03 Sep 1998 08:28:19 PDT
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org


>From: fuzz@pinecrest.edu (David Norelid)
>i;m sorry but i've been gone most this summer. whats this internal mem
>expansion?

Take a duplicate 32k mem chip and piggy back it on the existing
mem chip, then use a switch on the select pin to switch between
the banks.  Conceivably one could add multiple banks.

Main drawback is that you essentially have two seperate systems,
not just one with extra memory.

With an internal mem backup battery you could have a pretty fancy
way to avoid memory clears during school tests :)

DK

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