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DP83867IS: DP83867IS

Part Number: DP83867IS

We are using DP83867IS PHY with LS1043A processor, there is RGMII connection from processor to PHY and SGMII from PHY to RJ45.

while we are doing internal(Digital) loopback in the PHY, we can see the activity on RGMII signals but after disabling the loopback there is no activity.

  • Hi Arpit,

    I am not sure I understand your setup up completely. Please correct me if my understanding is wrong:

    • LS31043A processor <--> RGMII <--> 867PHY

    I am not sure on the second point that you mention, SGMII from PHY to RJ45 connector?  A block diagram would be helpful to show how you connect PHY to RJ45 side.

    Based on our understanding, we don't use SGMII connection between PHY to RJ45 shield. We normally use MDI connection between PHY to RJ45 shield which is shown below:

    May I ask why are you using SGMII communication between PHY and RJ45 connector? Is there any constrain in your design that required SGMII communication?


    Thank you,

    Hillman Lin