E-Tile Transceiver PHY User Guide

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

9.2.7. 0x000A: Receiver Tuning Controls

Attribute Code

0x000A

Description

Launches receiver tuning, enables/disables adaptive receiver tuning, and controls how some tuning knobs are used.

  • 0x84[3:0]: 4'b0001 to run initial adaptive equalization
  • 0x84[3:0]: 4'b0010 to freeze continuous adaptive equalization to allow the error counter to be read out when the PRBS generator/verifier is enabled (the Freeze adaptation mode)
  • 0x84[3:0]: 4'b0110 to run continuous adaptive equalization
  • 0x84[7:4]: 0x0
  • 0x85[7:0]: 0x00
  • 0x84[7:0]: 8'hFF to reset the RX equalization DFE taps (CTLE and FFE require a manual reset per their respective PMA attribute codes as described in Resetting the RX Equalization.)
  • 0x85[7:0]: 8'hFF to reset the RX equalization DFE taps (CTLE and FFE require a manual reset per their respective PMA attribute codes as described in Resetting the RX Equalization.)

PMA Can Be Running While Updating PMA Attribute?

Yes

Return Value {0x89[7:0],0x88[7:0]}

0x000A

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