Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!hub.ucsb.edu!dougp From: dougp@pcs1.physics.ucsb.edu Newsgroups: comp.sys.amiga.hardware Subject: Re: GVP series II controller non-DMA? Message-ID: <11189@hub.ucsb.edu> Date: 12 May 91 00:22:30 GMT Sender: news@hub.ucsb.edu Organization: UCSB Physics Department Lines: 30 -Message-Text-Follows- In article <07691.AA07691@babylon.rmt.sub.org>, rbabel@babylon.rmt.sub.org (Ralph Babel) writes... >In article , >c506634@umcvmb.missouri.edu (Eric Edwards) writes: >"dual port" probably refers to the direct link between SCSI >and on-board RAM. This way, DMA to on-board RAM doesn't have >to go through the Zorro bus, i.e. no bus arbitration is >required and the Zorro bus remains available for other bus >masters. > >Ralph Does this mean that this board can not DMA to chip or 0xC00000 fast ram? Or have they done something clever? If this board can't DMA to some part of memory, they will either have a mask entry or hide it by handleing it in the harddrive.device. Douglas Peale Extra padding to allow this to be posted. Brain dead news reader I use throws away messages that have more included text than new text. I wouldn't mind so much if it let me edit them, but it throws them away so I must retype them. I hate VMS!