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DP83867E: SGMII issue

Henry_Wu
Prodigy 160 points
Part Number: DP83867E


Hi,

There are DP83867E and KSZ9477 on My board, Via SGMII ,  KSZ9477  and DP83867E are connected .

Now I checked the power up voltage LED0\RX-CTRL\LED1,they are 0.45v,0.64v and 1.9v.

This means LED0 is in mode2, LED1 is in mode 4 and RX-ctrl is in mode 3.

But the problem is when i pluged a cat5 which connect PC and RJ45 from dp83867,  the widows show a red cross, which means there no connect.

Hope quickly reply

  • 0
    TI__Mastermind 26320 points

    Hi Henry,

    Please use MDIO/MDC of PHY to read the status register 0x0001 to confirm whether PHY link is up or not ?

    Regards,

    Geet

  • 0 in reply to Geet Modi
    Prodigy 160 points

    Hi, Geet

    The 0 bit of status register 0x0001 is 0.

    The 0 bit of register 0x0031 is 1 ,means mirror enable. i done nothing to eable it. When i write this bit to 0 and soft rest,but nothing work.this bit still is 1.

    Hope reply soon

    Henry

  • 0 in reply to Henry_Wu
    TI__Mastermind 26320 points

    Kindly share the complete value of the status register. Also, share 0x00000 to 0x001F register dump.

  • 0 in reply to Geet Modi
    Prodigy 160 points

    Hi，Greet


    Register 0000 is: 1140

    Register 0001 is: 7949

    Register 0002 is: 2000

    Register 0003 is: A231

    Register 0004 is: 0181

    Register 0005 is: 0000

    Register 0006 is: 0064

    Register 0007 is: 2001

    Register 0008 is: 0000

    Register 0009 is: 0300

    Register 000A is: 0000

    Register 000B is: 0000

    Register 000C is: 0000

    Register 000D is: 401F

    Register 000E is: 0000

    Register 000F is: 3000

    Register 0010 is: 5848

    Register 0011 is: 0002
    Register 0012 is: 0000

    Register 0013 is: 0044

    Register 0014 is: 29C7

    Register 0015 is: 0000

    Register 0016 is: 0000

    Register 0017 is: 0040

    Register 0018 is: 6150

    Register 0019 is: 4400

    Register 001A is: 0002

    Register 001B is: 0000

    Register 001C is: 0000

    Register 001D is: 0000

    Register 001E is: 0002

    Register 001F is: 0000

  • 0 in reply to Henry_Wu
    TI__Mastermind 26320 points

    Hi,

    Register 0x0005 indicates PHY is not recieving any signal from Link Partner. Please look in the hardware connectivity.

    Regards,

    Geet