IO port bits...

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Article #30115

#30115

From: darin wayrynen
Date: Fri, 08 Jan 1988 06:41

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Jonathan Nagy wished to be informed what events are represented by I/O
Port bits 0-7 listed in the MFP 68901 chip interupts...



bit #        function
0            Centronics busy
1            RS-232 data carrier detect
2            RS-232 clear to send
3            reserved(not used)
4            keyboard and Midi interrupt
5            FDC and HDC interrupt
6            RS-232 ring indicator
7            Monochrome monitor detect
 

  If you need further help in implementing any of these interupts let me know
via e-mail, and I'll help as much as possible.
(I posted this to the net instead of a email due to the fact that it is
something that stumped me for quite awhile, and I hope to save others the 
hassle of finding it!)

	Darin Wayrynen
	824 nw 10th
	Corvallis, OR 97330
	wayrynd@jacobs.UUCP

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!cbmvax!rutgers!orstcs!jacobs!wayrynd
From: wayrynd@jacobs.cs.orst.edu (darin wayrynen)
Newsgroups: comp.sys.atari.st
Subject: IO port bits...
Message-ID: <1803@orstcs.CS.ORST.EDU>
Date: 8 Jan 88 06:41:03 GMT
Sender: netnews@orstcs.CS.ORST.EDU
Reply-To: wayrynd@jacobs.UUCP (darin wayrynen)
Organization: Oregon State Universtiy - CS - Corvallis, Oregon
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