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Re: Shared I/O address
- To: Mailing List Recipients <firstname.lastname@example.org>
- Subject: Re: Shared I/O address
- From: Alan Deikman <Alan.Deikman@znyx.com>
- Date: Tue, 28 Apr 1998 20:15:34 -0700
- Resent-Date: Tue, 28 Apr 1998 21:44:07 -0700
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- Resent-Message-ID: <"uqN-b.0.Ye1.tofHr"@electra.znyx.com>
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>From: "John R Pierce" <email@example.com>
>Daniele Pinto <firstname.lastname@example.org> writes...
>>This is my situation: I've three device on three slot PCI.
>>I must send them a data in broadcast.
>>I know that every device have a private I/O space.
>>How can I share some I/O address to execute broadcast transition?
>I don't believe thats possible. Even if you forced a base register on each
>of the three devices to the same location, who would supply the target retry
>& ready handshake acknowlegements?
I spent some time thinking about this a couple of years back. My
conclusion was that you could implement it in a special case
where the target devices are designed to work together. They
would all have to have the same wait-state configuration, for
example. You cannot do this with any old PCI device.