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Article #246

Re: Help on adding I/O chips

#246
From: jhs
Date: Mon, 26 May 1986 23:59
9 lines
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A friend of a friend designed a multi-function I/O board for the 800XL
recently.  Looking at the schematic diagram of the address decoding section,
it looks as though the region around $D100 - D1FF is probably pretty safe.
He decodes this whole block as though he plans to be able to use it for many
different devices.  I might be able to get more data on what he learned while
researching the project.

John Sangster
jhs@mitre-bedford.arpa
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Message-ID: <8605262210.AA05269@mitre-bedford.ARPA>
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!ucbvax!MITRE-BEDFORD.ARPA!jhs

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!ucbvax!MITRE-BEDFORD.ARPA!jhs
From: jhs@MITRE-BEDFORD.ARPA
Newsgroups: net.micro.atari8
Subject: Re: Help on adding I/O chips
Message-ID: <8605262210.AA05269@mitre-bedford.ARPA>
Date: Mon, 26-May-86 19:59:20 EDT
Article-I.D.: mitre-be.8605262210.AA05269
Posted: Mon May 26 19:59:20 1986
Date-Received: Tue, 27-May-86 07:41:00 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The MITRE Corp., Bedford, MA
Lines: 9