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DP83867IR: IO_IMPEDANCE_CTRL setting of IO_MUX_CFG register

Hirotaka Matsumoto
Guru 27585 points
Part Number: DP83867IR
Other Parts Discussed in Thread: DP83867CS

Hi all

Would you mind if we ask DP83867IR?


There is IO_IMPEDANCE_CTRL setting of IO_MUX_CFG register.


It is impedance MAC IOs, does it contain SGMII IF?


Kind regards,

  • 0
    TI__Genius 17240 points

    Hello,

    This setting is only for RGMII and GMII (64-pin device only).

    Kind Regards,

    Joe

    All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and is subject to TI’s Important Notice (www.ti.com/.../important-notice.shtml)

  • 0 in reply to Joe Vanacore
    Guru 27585 points

    Joe san

    Thank you so much for your reply.
    Just in case, we would like to confirm in relation to your reply.

    This setting is only for RGMII and GMII (64-pin device only).
    ->We are sorry that the customer uses DP83867CS(48pin). We have typo.
       DP83867CS is 48-pin device, so is it impossible to configure using IO_IMPEDANCE_CTRL setting?
       As the background of this question, DP83867CS's datasheet shows the same as IR's one like as follows;
     
       In case of DP83867CS, we can select SGMII IF.
       Therefore, dose IO_IMPEDANCE_CTRL setting of IO_MUX_CFG register correspond for SGMII_SOP/SON pins?


    Kind regards,

    Hirotaka Matsumoto

  • +1 in reply to Hirotaka Matsumoto
    TI__Genius 17240 points

    Hello Hirotaka,

    This register setting applies to RGMII operation for all DP83867 packages.

    Kind Regards,

    Joe

    All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and is subject to TI’s Important Notice (www.ti.com/.../important-notice.shtml)