SPRUJ74 January   2023

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Key Features
    2. 1.2 Thermal Compliance
    3. 1.3 EMC, EMI, and ESD Compliance
  3. 2QP-ENET Board Identification and Installation
    1. 2.1 QP-ENET Board Component Identification
    2. 2.2 Interfacing QP-ENET Expansion Board with J784S4XG01EVM Board
      1. 2.2.1 Detailed Board Assembly Procedure (J784S4XG01EVM)
  4. 3QP-ENET Expansion Board Hardware Architecture
    1. 3.1 QP-ENET Expansion Board Hardware Top Level Diagram
    2. 3.2 Expansion Connectors
    3. 3.3 Board ID EEPROM
    4. 3.4 Ethernet Interface
      1. 3.4.1 Quad Port SGMII PHY Default Configuration
      2. 3.4.2 SGMII Clocking Scheme
        1. 3.4.2.1 Main Clock
        2. 3.4.2.2 Optional Clock
      3. 3.4.3 Ethernet Port LED Indication
      4. 3.4.4 Reset and Power-down Signals
  5. 4Revision History
  6.   A Appendix
    1.     A.1 Appendix – I (Interface Mapping)
    2.     A.2 Appendix – II (QP-ENET Board GPIO Mapping)

2.2.1 Detailed Board Assembly Procedure (J784S4XG01EVM)

This assembly procedure example is given for mating the QP-ENET board with the J784S4XG01EVM board.

  1. Take the Assembled J784S4XG01EVM Board
  2. Add M2.5 x 5mm hex spacers on each mounting holes provided on either sides of the J51 & J52 connector of the J784S4XG01EVM and secure it with M2.5 x 4 mm Phillips screws from the bottom sides to hold the spacer in place.
  3. Add M3 x 12mm Phillips screws through the mounting hole provided between the Ethernet connectors on the QP ENET board (shown in the picture below) and secure it with a M3 x 5mm hex spacer from the other side (this step is done only on the QP ENET board).
  4. Mount the QP board onto the J784S4XG01EVM connectors J51 & J52, making sure the connectors are seated evenly.
  5. Add M2.5 x 4 mm Phillips screws from the top side of the QP to secure the QP mating with the J784S4XG01EVM board.
  6. Add the M2.5 x 5 mm male to male spacer from the top side of the J784S4XG01EVM board to secure the remaining M3 screw protruding from the QP.
  7. Add a M3 x 5mm spacer from the top side of the J784S4XG01EVM board to lock the other end of the M3 x12mm Phillips screw.

GUID-58B75E02-BBBE-46E0-BC2C-8BCC70C07C93-low.jpg Figure 2-4 QP ENET Board
GUID-68F19D8B-8395-4A51-B8C6-20A8AC66EC99-low.png Figure 2-5 Bottom Side of J784S4XG01EVM
GUID-20408B16-CFA1-4942-866B-FE5314EFFB70-low.png Figure 2-6 Top Side of J784S4XG01EVM
GUID-52CFFDB8-0F13-49EB-80C7-105F5FF0E392-low.jpg Figure 2-7 J784S4XG01EVM - QP ENET Board Assembly Procedure