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RE: pci extensions (was: *New* PCI bus standard?)
- To: Mailing List Recipients <pci-sig-request@znyx.com>
- Subject: RE: pci extensions (was: *New* PCI bus standard?)
- From: Andrew Ingraham <Andrew.Ingraham@digital.com>
- Date: Fri, 11 Sep 1998 09:29:05 -0400
- Delivered-To: pcisig@teleport.com
- Resent-Date: Sat, 12 Sep 1998 00:39:09 -0700
- Resent-From: pci-sig-request@znyx.com
- Resent-Message-ID: <"OO5gW1.0.pw.WMI-r"@electra.znyx.com>
- Resent-Sender: pci-sig-request@znyx.com
> 1. How feasible is 133MHz bus clocking/signalling
> really with the current art of silicon? Could
> you really pump it through a connector or would
> this be an on-board-only technology?
AGP-1X runs at 66MHz.
AGP-2X is here now, and moves bits twice as fast, effectively 133MHz
(although the fastest clock/strobe is still 66MHz, but uses both edges).
All AGP platforms must support this speed.
AGP-4X is in the released spec. Effectively 267M/s data transfer rates,
using 133MHz strobes. The silicon is different; Vdd is only 1.5V.
All three speeds support connectors.
Regards,
Andy