Re: PCI on AGP

["masao" <masao_y@yc4.so-net.ne.jp>]

OK, now I see if I should have CAP_PTR for 440BX.

I've never think about targetting AGP only.
But does it mean any other AGP(ie 840) don't require having the pointer?
If so, I'd switch to AGP with no AGP function because I will have 
to fight with the strict timing requirement soon.

Thank you for your very helpful information.

Masao.Y

----- Original Message ----- 
From: Johannes Steigerwald <hannes.steigerwald@ops.de>
To: masao <masao_y@yc4.so-net.ne.jp>; <pci-sig@znyx.com>
Sent: Wednesday, March 15, 2000 6:09 PM
Subject: Re: PCI on AGP


> We put a PCI-only device on the AGP to benefit from 66 MHz Clock rate.
> The Config-Regs were just as in the PCI spec for any 'normal' PCI
> device. No capacitance pointer. Phoenix-BIOS had no problems configuring
> the device in a 440BX motherboard. The card worked flawlessly at more
> than the expected throughput.
> By the way, if you target your card to AGP only (not 66MHz PCI) you do
> not have to meet the strict 66MHz PCI timing requirements. AGP timing is
> much easier to meet.
> 
> Hope this helps,
> Johannes
>