AM67A: Trace requirement for PCIe reference clock

Part Number: AM67A

Tool/software:

Hi,

I would like you to confirm whether following requirement("Trace Length" and "Pair skew") should be applied to reference clock or not.

*www.ti.com/.../spracp4a.pdf


Customer will use external reference clock source(LP-HCSL) for PCIe. My concern is they need to follow this requirement not only TX/RX line but REFCLK as well.

Best Regards,