Re: TI-H: Port Expander I update

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Port Expander I update
From: Grant Stockly <gussie@alaska.net>
Date: Wed, 15 Jul 1998 10:24:35 -0800 (AKDT)
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <19980715133141.24045.qmail@hotmail.com>
Reply-To: ti-hardware@lists.ticalc.org


So is the 4GB drive driver Jon is supposed to be working on.

>I have made a second design for the PEI.  It uses 2 PCF8574A.  I call
>this Model B.  Model A is the design with the 1200.  It will emulate 2
>I2C chips so that the driver doesn't have to care which model it is
>communicating with.  This 2-tiered design allow the user to choose which
>one they what.  I am now designing memory modules for the PEI.
>Imagine-16 1MB flash chips connected to the PEI-that's 16MB's space!!
>Of course it is not all sequential, but still that's a lot of memory for
>a Calc!!
>
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References:

TI-H: Port Expander I update

From: "Matt Butch" <mjb25@hotmail.com>