Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!texsun!texbell!merch!cpe!adaptex!neese From: neese@adaptex.UUCP Newsgroups: comp.unix.i386 Subject: Re: Adaptec AHA1542 SCSI controller Message-ID: <6700048@adaptex> Date: 19 Dec 89 22:16:00 GMT References: <613@tah386.manhattan.ks.us> Lines: 15 Nf-ID: #R:tah386.manhattan.ks.us:613:adaptex:6700048:000:608 Nf-From: adaptex.UUCP!neese Dec 19 16:16:00 1989 >We wish to use a 1542 with a high speed CPU. Specifically, a Cached 25Mhz >80386 machine. What problems, if any, am I likely to run into doing this? >I know the 1542 is a third-party DMA board, which implies that it will do >it's own thing with the bus. Will this get me in trouble with the cache? No. DMA is DMA is DMA, regardless of which DMA it is, as long as the DMA is an accurate implementation of the AT specification. Roy Neese Adaptec Central Field Applications Engineer UUCP @ {texbell,attctc}!cpe!adaptex!neese merch!adaptex!neese uunet!swbatl!texbell!merch!adaptex!neese