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Re: VGA Palette snoopining
- To: Mailing List Recipients <pci-sig-request@znyx.com>
- Subject: Re: VGA Palette snoopining
- From: "John R Pierce" <pierce@scruznet.com>
- Date: Fri, 20 Sep 1996 23:58:09 -0700
- Resent-Date: Fri, 20 Sep 1996 23:58:09 -0700
- Resent-From: pci-sig-request@znyx.com
- Resent-Message-Id: <"SfCqb.0.eM.7DvGo"@dart>
- Resent-Sender: pci-sig-request@znyx.com
> The PCI 2.1 spec states in page 115
>
> "When a device has been programmmed to snoop the access, it cannot insert
> wait states or delay the access in any way and, therefore, must be able to
> latch and process the data without delay."
>
> The question is: What can such a device do if its internal buffers are all
> full, and therefore is unable to latch the snooped data.
I'd suggest you'd better have a extra buffer just for the snoop function
then...
Otherwise, C'est la vie!
-jrp
" ð Ý