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DP83TC814R-Q1: MDIO (SMI) Interface

Ray Vincent Aranzaso
Mastermind 18180 points
Part Number: DP83TC814R-Q1

Hi,

Good Day. This component needs a default config and I want to know if all of the required config (Table 8-17) can be done via the MDIO (SMI) interface. Could you let me know how this is done?

Please advise. Thank you very much.

Best Regards,

Ray Vincent

  • 0
    TI__Mastermind 19250 points

    Hi Ray,

    Except strap on RX_D3 (i.e., choice of CLKOUT pin), all configurations can be done via SMI interface.

    --
    Regards,
    Gokul.

  • 0 in reply to Gokul Koraganji
    TI__Mastermind 18180 points

    Hi Gokul,

    Good Day. Another query from the customer, please see below. Thank you very much.

    I explain my sequence, could you explain to me if this is possible?

    - In first: I configure an HW bootstraps mode in "default mode" (look at the picture). So, the MAC interface Selection bootstraps (table 8-21) are configured in SGMII.

    - Next: I would like to configure the RGMII mode (align, TX / RX interface delay or TX & RX internal delay mode) via the SMI (MDIO) interface. It is possible? If yes, what is the register?

    Best Regards,

    Ray Vincent

  • 0 in reply to Ray Vincent Aranzaso
    TI__Mastermind 19250 points

    Hello Ray,

    Good day to you too!!

    The sequence is exactly how it is to be done.

    For RGMII mode enable, the following registers should be programmed

    1. 0x0608 = 0x007B //SGMII disable
    2. 0x0600 = 0x0038 //RGMII enable
    3. 0x0602 = 0x0000 or 0x0001 or 0x0002 or 0x0003 //Enabling TX, RX shift

    --
    Regards,
    Gokul.