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Date:      Mon, 16 Aug 2004 00:07:00 -0700
From:      Peter Wemm <peter@wemm.org>
To:        freebsd-amd64@freebsd.org
Cc:        amd64@freebsd.org
Subject:   Re: amd64 motherboards w/ ISA slots ?
Message-ID:  <200408160007.00149.peter@wemm.org>
In-Reply-To: <Pine.BSF.4.53.0408151631470.40767@e0-0.zab2.int.zabbadoz.net>
References:  <Pine.BSF.4.53.0408151631470.40767@e0-0.zab2.int.zabbadoz.net>

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On Sunday 15 August 2004 09:33 am, Bjoern A. Zeeb wrote:
> Hi,
>
> does amd64 support ISA cards ?
> are there amd64 motherboards with ISA slots ?

I remember reading somewhere that AMD insisted in the board guidelines 
that all boards that I know of are PC2001 (or so) compliant.  PC2001 
compliance means:
1) MUST have acpi 2.0,
2) MUST have local apic/io apic
3) MUST NOT have isa slots,
etc.

The 'isa' devices that we support are not actually isa electrically.  
There are various low-pin-count busses on board that things like the 
super-io chips, flash etc are connected to.  They're flat address space 
just like isa - no enumeration.  In software they behave like their isa 
counterparts, but elecrically and physically, there is no 'isa' 
hardware on any of these boards.

And, good riddance in general.
-- 
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5



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