DRA821U: PCIe Ref Clock frequencies in TRM

Syed N Akhtar

Part Number: DRA821U

In the DRA821u TRM I found the following SERDES CLK table:

Based on it, PCIe Gen 1-3 can work at 25MHz. Is this true? I thought PCIe can only work with 100MHz Ref clock.

0 jian35385 over 3 years ago

Syed,

It is not true - PCIe should only be using 100MHz refclk per PCIe standard.

We are aware of the error in the TRM, and have internal requests to update the table in the next release.

Jian

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