pci-x core/ XC2VP/ pin capacitance

[Matthias Müller]

Hallo,
I will implement a PCI-X core in a XC2VP7, the pin capacitance of which
is 10 pF. The PCI-X specification requires a pin capacitance of 8 pF.
Does anyone know if there will be serious problems for operation with
133MHz?
Thank you for answers,
Matthias

 

[Eric Crabill]

Hi,

As you point out, the pin capacitance is out of
specification. Based on the designs I have seen,
you will not have any "serious problems". In fact,
I don't think you'll have any problems at all.

That doesn't constitute a guarantee, however.
Eric

Matthias Müller wrote:

Hallo,
I will implement a PCI-X core in a XC2VP7, the pin capacitance of which
is 10 pF. The PCI-X specification requires a pin capacitance of 8 pF.
Does anyone know if there will be serious problems for operation with
133MHz?
Thank you for answers,
Matthias