Re: pci compliant devices?

["Peter Marek" <peter.marek@marekmicro.de>]

Hi,

the degree of compliance changes from vendor to vendor. Some just specify
their drivers are compliant to the PCI spec, others also claim compliance to
the timing spec. Regarding driver compliance: Some vendors state their
devices are compliant with the PCI spec. and their devices are 3.3V and 5V
tolerant. This does not neccessarily mean these devices are 3.3V PCI
compliant. Some FPGAs are lacking the clamp diodes.

Another item is that PCI doesn't specify the time between reset and the
first PCI bus access. This time may change from system to system, and your
FPGA may still be loading its bitstream while the PCI BIOS first scans the
bus...... you may choose to use PCI interface chips and/or non-volatile FPGA
techniques (e.g. QuickLogic QuickPCI).
Moreover, volatile FPGAs will not work in mixed (open) 32bit/64bit designs,
since the bus width is configured at the end of reset on PCI. probably, SRAM
based FPGAs will not be fully configured at that time.


mfg,


Peter Marek
General Director
MarekMicro GmbH
Kropfersrichter Str. 6-8
D-92237 Sulzbach-Rosenberg
Germany
Phone: 049 - 9661 - 908 - 210
Fax:      049 - 9661 - 908 - 100
----- Original Message -----
From: <srisundar@dacafe.com>
To: <pci-sig@znyx.com>
Sent: Thursday, March 09, 2000 8:22 AM
Subject: pci compliant devices?


>
> hi
>
> The FPGA vendors, EPLD vendors say, their devices are
> PCI compliant. What do they mean? What is this compliance to PCI?
>
> TIA
> Sri
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