This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DP83822IF: SMI transmission(MDIO, MDC)

Part Number: DP83822IF

Hi all

Would you mind if we ask DP838322IF?

When SMI transmission(MDIO, MDC) error(address error) occurs more than 2000 times, it seems that PHY will not response at all.
Is it normal operation?
Or, if it returns to correct SMI, is it possible to communicate between PHY and MCU?

Kind regards,

Hirotaka Matsumoto

  • HI Hirotaka-san,

    Given the register space of Phy is known upfront, I am not clear why address error will happen over MDIO and MDC.

    Kindly explain the sequence you are trying to understand the issue little bit more.


    Regards,
    Geet