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- Path: sparky!uunet!wupost!sdd.hp.com!zaphod.mps.ohio-state.edu!menudo.uh.edu!lobster!nuchat!jpunix!digsol!dsterner
- From: dsterner@digsol.jpunix.com (Don Sterner)
- Newsgroups: comp.binaries.ibm.pc.archives
- Subject: Re: IBM Tech. Ref
- Message-ID: <coqmoB2w164w@digsol.jpunix.com>
- Date: Tue, 28 Jul 92 11:08:11 CDT
- References: <fnyx!=n@rpi.edu>
- Organization: Digital Solutions, Inc. Houston, TX.
- Lines: 25
-
- wongl@vccsouth13.its.rpi.edu (Lance Andrew Wong) writes:
-
- > I need to find the address values of the parallel port.
- >
-
- No need for an IBM TechRef (Ya probably can't afford one anyway). The
- PIO addresses are standard among "Compatible" computers - but there
- is a confusion factor.
-
- The addresses are as follows:
- LPT1 3BC-3BE
- LPT2 378-37A
- LPT3 278-27A
-
- The confusion arises from the fact that the addresses listed as LPT1
- above are USUALLY only used when one has a monochrome display/printer
- adapter. If you do not have that adapter, you PROBABLY should then
- use the following addresses:
- LPT1 378-37A
- LPT2 278-27A
-
- Standard (?) IRQ's are IRQ5 for address 278 and IRQ7 for addresses
- 3BC and 378.
-
- Plain as mud, right? Thanks, IBM.
-