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  #1 (permalink)  
Old 12-23-2003, 11:21 AM
Matthias Müller
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Default pcix core in XC2VP7

Hello,
I'm developing a pcix-card and I will use the PCIX-core from Xilinx in a
XC2VP7-5FF896 FPGA. Does anyone know if there is the need for using
special pins of the FPGA to connecet the PCIX-signals to the
bus-connector. Or can I use any FPGA-pin for any PCIX-signal?
Thank you for answers!
Matthias Müller

**************
Please remove the *no*spam* from my email-address, if you want to mail
to me!

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  #2 (permalink)  
Old 12-23-2003, 01:47 PM
Mark Schellhorn
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Default Re: pcix core in XC2VP7

Check out answer record #14965:

http://support.xilinx.com/xlnx/xil_a...PagePath=14965

The databook I have (older) mentioned some banking restrictions but it looks
like they have disappeared with newer software.

Make sure you obey the PCI-X trace length restrictions on the card. I would
establish the orientation of your FPGA on the card and then choose a pinout that
lines up with the edge card pins. Worked for me.

Mark


Matthias Müller wrote:
> Hello,
> I'm developing a pcix-card and I will use the PCIX-core from Xilinx in a
> XC2VP7-5FF896 FPGA. Does anyone know if there is the need for using
> special pins of the FPGA to connecet the PCIX-signals to the
> bus-connector. Or can I use any FPGA-pin for any PCIX-signal?
> Thank you for answers!
> Matthias Müller
>
> **************
> Please remove the *no*spam* from my email-address, if you want to mail
> to me!
>


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  #3 (permalink)  
Old 12-23-2003, 04:43 PM
Muthu
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Posts: n/a
Default Re: pcix core in XC2VP7

Matthias Müller <[email protected]> wrote in message news:<[email protected]>...
> Hello,
> I'm developing a pcix-card and I will use the PCIX-core from Xilinx in a
> XC2VP7-5FF896 FPGA. Does anyone know if there is the need for using
> special pins of the FPGA to connecet the PCIX-signals to the
> bus-connector. Or can I use any FPGA-pin for any PCIX-signal?
> Thank you for answers!
> Matthias Müller
>
> **************
> Please remove the *no*spam* from my email-address, if you want to mail
> to me!


Hi,

You should use the PCIX IOs listed in Datasheet.

These IOs meet the PCIX specification standards.

Regards,
Muthu
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  #4 (permalink)  
Old 12-29-2003, 04:28 PM
Matthias Müller
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Posts: n/a
Default Re: pcix core in XC2VP7

Thank you!
Looks like any user I/O can be used with the pci-x standard.
Have you considered the XAPP653 for over- and undershoot handling?
Xilinx recommends to regulate Vcco to 3.0V for all banks with pci-x standard in order to keep
values within the maximum FPGA specification.

Matthias


Mark Schellhorn schrieb:

> Check out answer record #14965:
>
> http://support.xilinx.com/xlnx/xil_a...PagePath=14965
>
> The databook I have (older) mentioned some banking restrictions but it looks
> like they have disappeared with newer software.
>
> Make sure you obey the PCI-X trace length restrictions on the card. I would
> establish the orientation of your FPGA on the card and then choose a pinout that
> lines up with the edge card pins. Worked for me.
>
> Mark
>
> Matthias Müller wrote:
> > Hello,
> > I'm developing a pcix-card and I will use the PCIX-core from Xilinx in a
> > XC2VP7-5FF896 FPGA. Does anyone know if there is the need for using
> > special pins of the FPGA to connecet the PCIX-signals to the
> > bus-connector. Or can I use any FPGA-pin for any PCIX-signal?
> > Thank you for answers!
> > Matthias Müller
> >
> > **************
> > Please remove the *no*spam* from my email-address, if you want to mail
> > to me!
> >


--
Matthias Müller
Fraunhofer Institut Integrierte Schaltungen IIS
-Bildsensorik-
Am Wolfsmantel 33
D-91058 Erlangen
Tel: +49 (0)9131-776-554
Fax: +49 (0)9131-776-598
mailto:[email protected] http://www.iis.fhg.de


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