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AM6546: SERDES clock input

Part Number: AM6546

I have a query related to the Input Clock Interface of AM6546.

I need to know what is the External Clock Frequency required on SERDES0_REFCLK P/N and SERDES1_REFCLK P/N when we are using USB.

In our Design we are not using PCIe but we are using USB.

So what is the required Input Clock for USB on AM6546.

  • Hello,

    The answer to your question is 100MHz. Two notes:

    1. Please refer to erratum i2028: SuperSpeed USB is not currently supported.
    2. SuperSpeed USB is only present on SERDES0. No USB-specific clocking is required for SERDES1.