Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!oliveb!veritas!amdcad!brahms!phil From: phil@brahms.amd.com (Phil Ngai) Newsgroups: sci.electronics Subject: Re: AT bus bandwidth Keywords: AT bus Message-ID: <1991Mar24.033128.439@amd.com> Date: 24 Mar 91 03:31:28 GMT References: Sender: usenet@amd.com (NNTP Posting) Organization: Advanced Micro Devices, Inc. Lines: 20 scafidi@aramis.rutgers.edu (John Scafidi) writes: >In the Feb. 18 issue of EDN, J.D.Mosley states that the 16 bit AT bus >(ISA) limits the data transfer to a maximum of 8M bytes/sec. >Since the AT bus is 16 bits or 2 bytes wide, doesn't this mean that >you can perform IO at the rate of 1/2 Mhz ? Analyze your units. (8M bytes/sec) / (16 bits/transfer) = 1/2 million (somethings) (8M bytes/sec) / (2 bytes/transfer) = 4 million transfers/second >Can anyone >report on how good is the "AT Bus Design Book" by Annabooks in San >Diego? It is a good book, but probably too technical for you. -- Sun PC-NFS: for the engineer who really want a Sun and got a PC.