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Original question:

DP83869HM: About the SGMII amplitude change settings

DP83869HM: Configuration register value to set SGMII amplitude to 600mV peak-to-peak

Herbert Kozel
Prodigy 10 points
Part Number: DP83869HM

Post DP83869HM: About the SGMII amplitude change settings - Interface forum - Interface - TI E2E support forums states, that setting the configuration register 0x00D6 t0 0x6000 results in a SGMII amplitude of 720mV peak to peak.

Which value for register 0x00D6 will result in a peak to peak value of 600mV?

Thank you in advance,
Best regards,
Herbert

  • 0
    TI__Mastermind 25955 points

    Hi Herbert,

    Unfortunately, we only have 0x00D6 bit[14:13] to tune the SGMII amplitude. I believe 0x00D6 are the lowest amplitude that we could provide. If possible, you can play around these register and see if you are able to see 600mV in your system.

    --

    Sincerely,

    Hillman Lin