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)

3.4.3 Ethernet Port LED Indication

The following table shows the LED function of the SGMII ports RJ45 connectors. The Right LED gives the indication of link status and collision presence; if the LED is turned OFF then its means that the link is established in half-duplex mode, or no link established. If the LED is turned ON then the link is established in full-duplex mode. If the LED is blinking or pulse-stretching, then it means the link is established in half-duplex mode but collisions are present. The Left LED gives speed and activity status; if LED is blinking or pulse-stretching it denotes link activity and if not then no activity.

Table 3-4 SGMII Ports LED Function
RGMII Port RJ45-LED FUNCTION
RIGHT - YELLOW Duplex/Collision
LEFT - GREEN 10/1000Mbps Speed/Activity
LEFT - ORANGE 100Mbps Speed/Activity