Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!mailrus!wuarchive!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpda!hpcuhc!hpspcoi!mwilliam From: mwilliam@hpspcoi.HP.COM (Mark Williams) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: AT Bus specs Message-ID: <15090004@hpspcoi.HP.COM> Date: 11 Jul 90 16:49:35 GMT References: <58084@bbn.BBN.COM> Organization: HP PCG, Sunnyvale CA Lines: 19 The "Industry Standard Architecture" Bus is implicitly defined in: IBM PC/AT Hardware Technical Reference 6183355, March '86, IBM The IEEE P996 "Personal Computer Bus Standard" is better: Contact Mike Fung, 408 434-0600 Chips and Technologies, Inc. Get the latest version -- mine is dated 14 May 1990. An excellent new book on AT Bus Design is just out: AT Bus Design, Ed Solari (Intel), available from Annabooks, 12145 Alta Carmel Ct. Suite 250-262 San Diego, CA 92128 800-462-1042 Caveat: Not all IO cards or systems follow the rules, so you may still have to do compatibility testing. Disclaimer: These are my opinions only, etc.