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SN65DP159: Adaptive Receiver Equalizer

Hiroshi Katsunaga
Mastermind 6480 points
Part Number: SN65DP159

Hello,

My customer have some questions about Adaptive Receiver Equalizer in SN65DP159.

[Q1]

Does the equalizer operate as adaptive receiver equalizer under the following conditions across full range 250Mbps to 6Gbps ?

- condition -

I2C_EN/PIN = High (I2C control mode)

DEV_FUNC_MODE=01 (Automatic redriver to retimer crossover at 1.0Gbps)

EQ_EN=1 (EQ enable)

EQ_ADA_EN=1 (Adaptive EQ)

[Q2]

Does the equalizer operate as adaptive receiver equalizer under the following conditions across full range 250Mbps to 6Gbps ?

- condition -

I2C_EN/PIN = Low (Pin Strap mode)

EQ_SEL/A0=No Connect (Adaptive EQ)

Best Regards,

Hiroshi Katsunaga

  • 0
    TI__Guru 60870 points
    Hello Katsunaga-san,

    Adaptive equalizer mode can be supported when the DP159 is operating as a retimer. The two states you described above will operate the same with adaptive EQ enabled in retimer mode. Please note that in I2C mode the tx_term_ctl is not automatically set and needs to be set manually.

    Regards,
    JMMN
  • 0 in reply to JMMN
    Mastermind 6480 points
    Hi JMMN-san,

    Thank you for your fast response and for giving your clear comments.
    I understood it.

    Thank you for your cooperation.

    Best Regards,
    Hiroshi Katsunaga