E-Tile Transceiver PHY User Guide

ID 683723
Date 9/30/2022
Public
Document Table of Contents

8.15. Resetting the RX Equalization

  1. Reset the receiver (RX) tuning DFE taps using PMA attribute code 0x000A.
    1. Write 0x84[7:0] = 8'hFF.
    2. Write 0x85[7:0] = 8'hFF.
  2. Reset RF_P2, RF_P1, and RF_P0 to default values.
    • Use attribute code 0x002C with {0x85[7:0], 0x84[7:0]} = 0xD00.
    • Use attribute code 0x006C with {0x85[7:0], 0x84[7:0]} = 0x0.
    • Use attribute code 0x002C with {0x85[7:0], 0x84[7:0]} = 0xD01.
    • Use attribute code 0x006C with {0x85[7:0], 0x84[7:0]} = 0x0.
    • Use attribute code 0x002C with {0x85[7:0], 0x84[7:0]} = 0xD02.
    • Use attribute code 0x006C with {0x85[7:0], 0x84[7:0]} = 0x0.

    Refer to Updating PMA Analog Parameters for more details on using attribute codes 0x002C and 0x006C.

    See the "Configuring RX Termination and TX Tri-state" table for examples of disabling TX tri-state and changing the termination values of RX.

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