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Date:      Wed, 21 May 1997 16:28:04 +0200
From:      Poul-Henning Kamp <phk@dk.tfs.com>
To:        Stefan Esser <se@FreeBSD.ORG>
Cc:        Bruce Evans <bde@zeta.org.au>, garycorc@idt.net, HARDWARE@FreeBSD.ORG
Subject:   Re: isa bus and boca multiport boards 
Message-ID:  <2292.864224884@critter>
In-Reply-To: Your message of "Wed, 21 May 1997 15:25:44 %2B0200." <19970521152544.25788@x14.mi.uni-koeln.de> 

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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.



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