Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!uwvax!tank!eecae!cps3xx!usenet From: usenet@cps3xx.UUCP (Usenet file owner) Newsgroups: comp.os.minix Subject: Re: What's the magic about using DMA?? Message-ID: <3006@cps3xx.UUCP> Date: 17 May 89 13:08:11 GMT References: <15600@louie.udel.EDU> Organization: Engineering, Michigan State U., E. Lansing MI Lines: 27 in article <15600@louie.udel.EDU>, EPRF%SNYCENVM.BITNET@cornellc.cit.cornell.edu (Peter Flass) says: > On Tue, 16 May 89 15:45:03 GMT Marshall Cline said: >>(2) AST mentioned that there is minimal documentation for using DMA. >>QUESTION: Does anyone know a pointer to more detailed doc on DMA? Try calling Intel and asking for the data sheet on the 8237A. Intel (and most other chip manufacturers) will send individual data sheets for free. Distributers will usually provide that and whole books for free if it's work/sales related. To get the data sheet do: 1) Call 1-408-555-1212 2) ASk for the phone number for Intel in Santa Clara 3) Call that number 4) Tell the operator you want to talk to some one about getting a data sheet. Another source of DMA info is the IBM AT Tech Ref Manual. John H. Lawitzke UUCP: Work: ...rutgers!mailrus!frith!dale1!jhl Dale Computer Corp., R&D ...uunet!frith!dale1!jhl 2367 Science Parkway Home: ...uunet!frith!ipecac!jhl Okemos, MI, 48864 Internet: jhl@frith.egr.msu.edu