Date: Thu, 6 Apr 95 11:45 CDT From: uhclem@nemesis.lonestar.org (Frank Durda IV) To: freebsd-hackers@FreeBSD.org Cc: uhclem@nemesis.lonestar.org Subject: Re: PCI/EISA/ISA performance Message-ID: <m0rwugR-0004w1C@nemesis.lonestar.org>
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[0]"Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> [0]On Tue, 4 Apr 1995, Rodney W. Grimes wrote: [0]ISA does not have a specified clock frequency, I have seen it running [0]as fast as 16Mhz. Most boards die above 10Mhz, but some of the more [0]specialized industrial applications boards are spec'd upto 12 or 16Mhz. Actually, there is an IEEE standard on timing and performance for the ISA bus. It came out in the late eighties. I don't have it here (we have a copy at work) but I am pretty sure it says 8.33MHz is the IEEE spec. We used this spec recently when fighting Intel over some non-compliance on IOW timing. Frank Durda IV <uhclem@nemesis.lonestar.org>|"I'll huff, and I'll puff, or uhclem%nemesis@trsvax.ast.com (Internet)| and I'll get promoted." ...letni!rwsys!nemesis!uhclem | - Old management saying ...decvax!trsvax.fw.ast.com!nemesis!uhclem |
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