DP83TC811S-Q1: IBIS Model

Tool/software:

Hi team,

Is there an IBIS model available for the DP83TC811S-Q1? If not, which IBIS model could be used instead as I am trying to analyse the signal integrity and impedance of the reference clock pins XI and XO. I have seen that the IBIS models of the alternative chips have no models attached to these pins. Is there any way to get the models for these two pins or any alternatives?

Thanks.