E-Tile Transceiver PHY User Guide

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

3.4. E-Tile Transceiver PHY Architecture Revision History

Document Version Changes
2022.09.30 Made the following changes:
  • Updated several steps in Duplex Adaptation Flow, RX Simplex Adaptation Flow and Dynamic Reconfiguration Adaptation Flow.
  • Added protection information about unused simplex transmitter channels in Unused Transceiver Channels.
2021.10.04 Made the following changes:
  • Clarified the RF_A firmware default values for NRZ and PAM4 in RX Adaptation Modes.
  • Converted Duplex Adaptation Flow, RX Simplex Adaptation Flow and Dynamic Reconfiguration Flow into tabular format.
2021.02.10 Made the following changes:
  • Added "This on-chip AC-coupling capacitor cannot be bypassed, and DC-coupling protocols are not supported. For AC coupling requirement details, refer the Device Family Pin Connection Guidelines "E-Tile Pins" table." to Programmable Termination Modes.
  • Changed RF_B0T minimum and default values in the "PMA Parameter Description and Range" table to 0.
  • Added a footnote for the CTLE LF minimum and the CTLE HF maximum in the "PMA Parameter Tuning for Extending Dynamic Range" table: When you use low effort initial adaptation and have 25G/28G optical modules, better results can be achieved using CTLE LF minimum = 7 and CTLE HF maximum = 7.
2020.06.02 Made the following changes:
  • Updated the "PMA Parameter Description and Range" and "PMA Parameter Tuning for Extending Dynamic Range" tables.
  • Updated Unused Transceiver Channels and all of its subsections.
  • Added simplified steps for Reconfiguring from Channel Protection Mode to Mission Mode.
2020.01.31 Made the following changes:
  • Updated the "PMA Parameter Tuning for Extending Dynamic Range" table.
  • Added Duplex Adaptation Flow.
  • Added RX Simplex Adaptation Flow.
  • Added Dynamic Reconfiguration Adaptation Flow.
  • Updated instructions for preserving Unused Transceiver Channels in a Used Tile.
  • Updated instructions for preserving Unused Transceiver Channels in Completely Unused Tiles.
  • Updated instructions for preserving Unused Transceiver Channels in High-Speed PAM4 Mode.
  • Added Reconfiguring from Mission Mode to Channel Protection Mode.
  • Added Reconfiguring from Channel Protection Mode to Mission Mode.
2019.10.11 Made the following changes:
  • Updated Low Power Mode.
  • Added the "Step Size" column to the "TX Equalization Settings for PAM4 and NRZ Signals" table.
  • Added the E-Tile Transmitter Equalization Tool.
  • Clarified "PMA Parameter Tuning for Extending Dynamic Range."
  • Added the Related Information links for the Intel® Agilex™ device documents.
2019.07.29 Made the following changes:
  • Added Low Power Mode.
  • Changed "internal or serial loopback" to "internal serial loopback."
  • Added "PMA Initial Adaptation Effort Status" descriptions.
  • Added a description of the mission mode to Internal Serial Loopback Path.
  • Limited the sum of the TX equalization settings to less than or equal to 26.
  • Limited the POST equalization setting to even values.
  • Removed the limitation on the PRE2 equalization setting to even values.
  • Added a description of the equalization tables: These tables are intended to look up a given combination of transmitter equalization settings. The Input columns are the input values you enter, and the Outputs columns are the actual output values after programming. You can look up whether your input-output combination is valid or invalid and whether your inputs match your outputs.
2019.04.19 Made the following changes:
  • Added this note to Programmable Termination Modes: If the above requirements are not met, a typical value of 100 nF of capacitive termination can be used on the board.
  • Inserted under Fractured in the "Example Applications for Various FEC Modes" table: However, RS-FEC needs to be shared among the NRZ channels within one IP instantiation.
  • Added Unused Transceiver Channels in Completely Unused Tiles.
  • Added Unused Transceiver Channels in High-Speed PAM4 Mode.
2019.03.13 Made the following change:
  • Added TX PMA Bonding instruction: "TX PMA Bonded channels must be placed contiguously from the bottom to the top. Use the E-Tile Channel Placement Tool for your channel placement."
2019.03.07 Made the following change:
  • Changed the data rate for E-tile Non-Return to Zero (NRZ) to 28.9 Gbps.
2019.02.04 Made the following changes:
  • Added PMA Reset.
  • Updated the "PMA Parameter Description and Range" table.
  • Updated the "PMA Parameter Tuning for Extending Dynamic Range" table.
2018.10.08 Made the following changes:
  • Changed the rule for the postcursor in the "TX Equalization Settings for NRZ Signals" table.
  • Re-titled the "Receiver Equalizer" section to "RX Adaptation Modes."
  • Added the "PMA Tuning" section and all subsections.
  • Added supported standards by RS-FEC in the "Reed Solomon Forward Error Correction (RS-FEC) Architecture" section.
  • Added further description about the absolute maximum transceiver input in the "Programmable Termination Modes" section.
  • Changed the description for the initial adaptation mode in the "E-Tile Receiver PMA RX Adaptation Modes" table.
  • Added a note about the gearbox in the "PMA Interface" section.
  • Clarified that PCS features are not available within the Native PHY IP core in the "Physical Coding Sublayer (PCS) Architecture" section.
  • Added PMA Direct to the aggregate mode in the "Example Applications for Various FEC Modes" table.
2018.08.08 Made the following changes:
  • Changed the equation for TX equalization for NRZ signals in the "TX Equalizer" section.
2018.07.18 Made the following changes:
  • Added the "E-Tile Receiver PMA RX Adaptation Modes" table.
  • Updated the "Data Pattern Generation" section and added the "QPRBS13-CEI Pattern" figure.
  • Updated the description of the PMA interface in the "PMA Interface" section.
2018.05.15 Made the following changes:
  • Added the "PCS" section.
  • Updated the "PMA Architecture Block Diagram" figure.
  • Updated the "Internal Serial Loopback Path" figure.
  • Updated the "Reverse Parallel Loopback Path" figure.
  • Removed the Termination modes parameter from the "PMA Transmitter Programmable Parameters" table.
  • Added the following sections:
    • "TX PMA Bonding"
    • "Transceiver Interface Deskew Logic"
    • "Dedicated Balanced PLL Refclk Tree"
  • Added links to the NRZ—Transmitter Equalization Tool and PAM4—Transmitter Equalization Tool in the "TX Equalizer" section.
2018.01.31 Initial release.

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