Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!usc!snorkelwacker!bloom-beacon!eru!hagbard!sunic!mcsun!unido!mpirbn!p554mve From: p554mve@mpirbn.mpifr-bonn.mpg.de (Michael van Elst) Newsgroups: comp.sys.amiga.hardware Subject: Re: GVP Trade-in Message-ID: <1155@mpirbn.mpifr-bonn.mpg.de> Date: 1 Sep 90 15:38:50 GMT References: <589@oregon.oacis.org> <38CP09P@dri.com> <02048.002057@thiger.UUCP> <552@DIALix.UUCP> <02123.132132@thiger.UUCP> <11853@ogicse.ogi.edu> Reply-To: p554mve@mpirbn.UUCP (Michael van Elst) Organization: Max-Planck-Institut fuer Radioastronomie, Bonn Lines: 15 In article <11853@ogicse.ogi.edu> jmeissen@ogicse.ogi.edu (John Meissen) writes: >If you have data transfer operations going on multiple drives >simultaneously, a properly designed DMA controller will be able to >interleave the operations, effectively allowing them to run at the >same time. A processor-based scheme can only handle one operation >at a time. I don't think that. You can multiplex the bus either with DMA or with a processor transfer routine although DMA would be faster. Regards, -- Michael van Elst UUCP: universe!local-cluster!milky-way!sol!earth!uunet!unido!mpirbn!p554mve Internet: p554mve@mpirbn.mpifr-bonn.mpg.de "A potential Snark may lurk in every tree."