Article View: comp.sys.ibm.pc
Article #25891PC IO Port bus ?
From: John Antypas
Date: Fri, 25 Mar 1988 00:36
Date: Fri, 25 Mar 1988 00:36
14 lines
1063 bytes
1063 bytes
A simplistic question. Would anyone out there know if:
(a) The IBM PC data bus (ie when I do an INP, or OUT port instruction)
has address decoding already done? What about latching?
(b) On the PC, I assume the bus is 16 bits wide (data) with a 16 bit
address bus? (My AT manual says it is.)
John Antypas -- Soft21 --21st Century Software:
New Product from FastBuck Enterprises! New Puzzle -- Rubik's Cling Wrap!
The puzzle you get stuck on! (Along with everything else ... almost)
UUCP: {garp, killer, pyramid, reed, sdcsvax!ucsd!ucrmath}!soft21!jantypas
Internet: jantypas%soft21.UUCP@{eddie.MIT.EDU, UCSD.EDU, uunet.UU.NET}
Technical Details
Message-ID:
<166@ucrmath.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!tut.cis.ohio-state.edu!mailrus!ames!ucsd!sdcsvax!ucsdhub!ucrmath!hope!jantypasShow Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!tut.cis.ohio-state.edu!mailrus!ames!ucsd!sdcsvax!ucsdhub!ucrmath!hope!jantypas From: jantypas@hope.UUCP (John Antypas) Newsgroups: comp.sys.ibm.pc Subject: PC IO Port bus ? Message-ID: <166@ucrmath.UUCP> Date: 25 Mar 88 00:36:35 GMT Sender: news@ucrmath.UUCP Reply-To: jantypas@hope.UUCP (John Antypas) Organization: University of California, Riverside Lines: 14