Tool/software:
Hi,
I would like to confirm which case external refence clock source should be prepared for SERDES function.
According to TRM, we can use this function for PCIe/USB3.x/SGMII.
For PCIe, there are some erratas related to clock. So depending on usecase, I believe we can judge whether external clock source is needed or not.
However, for USB3.x, there is no errata related to clock. Actually, it looks that external refclk is acceptable for USB as shown below.
However, I'm not sure which case external refclk is required case of USB3.x.
Could you comment about this point ?
Best Regards,