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DP83867CS: DP83867CS PHY Address setting problem

Honle Zhao
Intellectual 590 points
Part Number: DP83867CS

If use SGMII mode,DP83867CS  PHY Addresscan be set to all 0？How many settings?

  • 0
    TI__Mastermind 18425 points
    Hello,

    DP83867CS has 4bits for PHY Address PHY_ADD[0:3] and all of them can be used in SGMII mode. This gives 16 possible address settings.

    Please note that the strap resistor value for mode 4 in SGMII operation are different, Rhi=4kohm and Rlow=10kohm. This is also recorded in the datasheet. For balanced loading in SGMII operation, RX_D1 should have same strap as RX_D0 and RX_D3 should have same strap as RX_D2.

    -Regards,
    Aniruddha