Printer port specifics

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Article #9079

#9079

From: Steven V. Christensen
Date: Mon, 22 Jan 1990 04:18

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I understand it is possible to access the specific input and output
ports of the IBM PC parallel port, to have access to some TTL-level
signals. I want to do some digital programming, and want to do
some low-level access to the port.

Can someone enlighten me as to the specifics of accessing the port
bits? I understand there are 12 output and 5 input bytes.  

You can send mail, or post the results. Anyone who wants a summary
can send me mail and I will send the results.

Thanks,
		Steven

-- 
Steven V. Christensen
U.C. College of Eng.
schriste@uceng.uc.edu

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!rutgers!tut.cis.ohio-state.edu!uccba!uceng!schriste
From: schriste@uceng.UC.EDU (Steven V. Christensen)
Newsgroups: comp.sys.ibm.pc
Subject: Printer port specifics
Message-ID: <3391@uceng.UC.EDU>
Date: 22 Jan 90 04:18:18 GMT
Organization: Univ. of Cincinnati, College of Engg.
Lines: 18