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DP83867IS: APP note describing register access procedure

Takashi Onawa
Genius 13200 points

Part Number: DP83867IS

Hi Team,

My customer is facing a trouble on DP83867+Zinq solution. According to them, Zinq could not recognize link settings determined by auto negotiation properly. 

Do you have any app note describing register access procedure to get link information from MAC side using MDIO?

Also, could you tell me which register zinq should access to get following link information?

1. Duplex

2. communication Speed

Regards,

Takashi Onawa

  • 0
    TI__Mastermind 18425 points
    Hello Onawa-san,

    The register access procedure is documented in the datasheet section '8.4.2 Serial Management Interface'. The speed and Duplex information of the PHY is stored in register 0x0011. The link status is also duplicated in register 0x0001. If register 0x0001 is being used then please as customer to read the register 0x0001 twice.

    -Regards,
    Aniruddha