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To: Stefan Esser <se@FreeBSD.ORG>
cc: Bruce Evans <bde@zeta.org.au>, garycorc@idt.net, HARDWARE@FreeBSD.ORG
From: Poul-Henning Kamp <phk@dk.tfs.com>
Subject: Re: isa bus and boca multiport boards 
In-reply-to: Your message of "Wed, 21 May 1997 15:25:44 +0200."
             <19970521152544.25788@x14.mi.uni-koeln.de> 
Date: Wed, 21 May 1997 16:28:04 +0200
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>> Clearly some magic (like data available :-) is required to
>> get burst mode.  Do you thing 300+ nsec is typical for
>> non-data registers?
>
>Well, there is no such thing as burst mode I/O in PCI :)
>Burst transfers are only defined for memory accesses ...

Isn't I/O and Memory symmetrical in PCI ?

--
Poul-Henning Kamp           | phk@FreeBSD.ORG       FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk    Private mailbox.
whois: [PHK]                | phk@tfs.com           TRW Financial Systems, Inc.
Power and ignorance is a disgusting cocktail.