tmottonen@cc.helsinki.fi (02/01/91)
In article <1991Jan30.045751.3520@disk.uucp>, rob@disk.uucp (Rob Miracle) writes: > In article <1991Jan28.100703.4680@cc.helsinki.fi>, tmottonen@cc.helsinki.fi writes: >> In article <1991Jan24.201315.647@sbcs.sunysb.edu>, altman@sbstaff2.cs.sunysb.edu (Jeff Altman) writes: >> <...> >> > First of all XGA is only a Micro Channel product. It is >> > Bus Mastering, ships in the standard configuration with > ^^^^^^^^^^^^^ > >> I've heard that the XGA adapter requires a 386SX or better >> machine. Any idea why ? > > Simple, the XGA adapter is a BUS master microchannel card. Bus mastering is > only supported under 80386 processors. Well, let me quote the IBM Catalog of MicroChannel Adaptors on the IBM 16-bit SCSI bus master adapter: "A 16-bit bus master adapter that provides expandability for all PS/2 computers with Micro Channel bus. ..." So it would seem that you can have bus mastering under 80286 processors after all ;-) Teemu. -- _________ Teemu Mottonen | | internet: tmottonen@cc.helsinki.Fi University of Helsinki | | bitnet: TMOTTONEN@FINUH Dept.of Computer Science |_________| decnet: HYLK::TMOTTONEN