home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!dtix!darwin.sura.net!mips!swrinde!news.dell.com!pandora!mikeb
- From: mikeb@pandora.dell.com (Michael Brundridge)
- Newsgroups: comp.unix.sysv386
- Subject: Re: Avoiding the "8/16 Bit Problem"
- Message-ID: <mikeb.714332773@pandora>
- Date: 20 Aug 92 17:46:13 GMT
- References: <18392@polstra.UUCP> <316@dcrb.dla.mil>
- Sender: news@raid.dell.com (Net News Admin)
- Organization: Dell Computer Co
- Lines: 30
- Nntp-Posting-Host: pandora.dell.com
-
- bae4310@dcrb.dla.mil (Robert Tobin) writes:
-
- >From article <18392@polstra.UUCP>, by jdp@polstra.UUCP (John Polstra):
-
- >> there is a potential problem in an ISA machine when you have both an
- >> 8-bit and a 16-bit card in the same 128K block of the address space.]
- >>
- >> My question is, are the following cards 8-bit or 16-bit?
- >>
- >> Orchid ProDesigner IIs video controller
- >> BusTek 542 SCSI controller (an Adaptec 1542 clone)
- >>
- >> Thanks.
- >> --
- >> John Polstra polstra!jdp@uunet.uu.net
- >> Polstra & Co., Inc. ...!uunet!polstra!jdp
- >> Seattle, Washington USA (206) 932-6482
- >> "Self-knowledge is always bad news." -- John Barth
-
- With out checking with the vendor or have the schematic it is extremely
- hard to tell. Another problem is if the card has both RAM and ROM on
- the card. Some vendors will cost reduce the board so that the ROM is
- 8-bits and the RAM is 16-bits. This will still cause the decode conflict
- of a 16-bit / 8-bit device when you place two cards in the same 128k
- region (C000-D000, E000-F000, etc.).
- --
- Michael Brundridge | Dell Computer Corp | STANDARD
- mikeb@pandora.dell.com | 1807 W. Braker Ln | DISCLAIMER
- | Building C | APPLIES
- | Austin, Tx 78758 |
-