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DP83826I: DP83826 or DP83826A Strap for EtherCat

Thomas Donner
Prodigy 160 points

Part Number: DP83826I

Tool/software:

Hello

The Beckhoff "PHY selection guide" PDF describes following for the DP83826:
https://download.beckhoff.com/download/Document/io/ethercat-development-products/an_phy_selection_guidev3.1.pdf

Recommended configuration for Fast Link Down mode in CR3:
enable Bit 10 (Descrambler), Bit 3 (RX Error count) and Bit 2 (MLT3
error), and FLD_CFG2: Bit [5:0] = 0x08

Do I see it right that this couldn´t be realized with both PHYs only by strapping?
Each of the PHYs had to reconfigured by MDIO access for optimal setup of the PHY?

Kind regards

Thomas D.

  • +1
    TI__Mastermind 40625 points

    Hello Thomas,

    For DP83826, MLT-3 error FLD mechanism is not able to be set via strap. Only register configuration would be possible to get the Beckhoff guide.

    Note, for DP83826A, Beckhoff recommendation can be accomplished via strapping only. You may use option 5 where RX_D3 and RX_CLK are strapped high.

    Sincerely,

    Gerome