SPRUJ86A October   2023  – January 2024 AM263P4

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
      1.      Preface: Read This First
        1. 1.1.1.1 Sitara MCU+ Academy
        2. 1.1.1.2 Important Usage Notes
    2. 1.2 Kit Contents
    3. 1.3 Device Information
      1. 1.3.1 HSEC 180-pin Control Card Docking Station
      2. 1.3.2 Security
  6. 2Hardware
    1. 2.1  Component Identification
    2. 2.2  Power Requirements
      1. 2.2.1 Power Input Using USB Type-C Connector
      2. 2.2.2 Power Status LEDs
      3. 2.2.3 Power Tree
      4. 2.2.4 Power Sequence
      5. 2.2.5 PMIC
    3. 2.3  Functional Block Diagram
    4. 2.4  Reset
    5. 2.5  Clock
    6. 2.6  Boot Mode Selection
    7. 2.7  JTAG Path Selection
    8. 2.8  Header Information
    9. 2.9  GPIO Mapping
    10. 2.10 Push Buttons
    11. 2.11 Interfaces
      1. 2.11.1  Memory Interface
        1. 2.11.1.1 OSPI/QSPI
        2. 2.11.1.2 Board ID EEPROM
      2. 2.11.2  Ethernet Interface
        1. 2.11.2.1 Control Card Ethernet Routing
        2. 2.11.2.2 On Board Ethernet PHY
        3. 2.11.2.3 LED Indication in RJ45 Connector
      3. 2.11.3  I2C
      4. 2.11.4  Industrial Application LEDs
      5. 2.11.5  SPI
      6. 2.11.6  UART
      7. 2.11.7  MCAN
      8. 2.11.8  FSI
      9. 2.11.9  JTAG
      10. 2.11.10 Test Automation Header
      11. 2.11.11 LIN
      12. 2.11.12 MMC
      13. 2.11.13 ADC and DAC
    12. 2.12 HSEC Pinout and Pinmux Mapping
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 If You Need Assistance
    2. 4.2 Trademarks
  9. 5Related Documentation
    1. 5.1 Supplemental Content
      1.      5.1.A E1 Board Modifications
      2.      5.1.B E2 Design Changes
  10. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design
  11. 7Revision History

2.11.2 Ethernet Interface

The AM263Px SoC is equipped with two separate Ethernet interfaces. The first interface is a Gigabit Ethernet Switch (CPSW) subsystem that has two ports with selectable MII, RMII, and RGMII interfaces.

Note: The ZCZ_S package that is used on the Control Card is equipped with a Resolver interface in place of one of the CPSW Ethernet ports. As a result, the only CPSW port that is accessible on the Control Card is RGMII2/RMII2/MII2.
The second Ethernet interface is the Programmable Real-Time Unit Industrial Communication Subsystem (PRU-ICSS) which includes two cores (PRU0 and PRU1) that can each be configured as a Real-Time Ethernet Port.

Each of the Ethernet interfaces has an associated Management Data Input/Output (MDIO) module for PHY management. The CPSW and PRU-ICSS MDIO signals are to be routed to the PHY based on which port is routed to the PHY. The Control Card includes two analog switches that determine which MDIO module is routed to the on-board PHY or Ethernet add-on board connector.

The Ethernet port from the Gigabit Ethernet Switch (port 2) and Real-Time Ethernet Port that can be configured for PRU0 (PR0_PRU0_MII0) are routed to the same balls on the SoC such that the pinmux configuration determines which peripheral is being used at one time.

The Control Card includes an on-board gigabit Ethernet PHY transceiver (DP83869HMRGZT). For additional details on the on-board PHY, refer to Section 2.11.2.2. There is also an external connector to attach different Ethernet add-on boards for an additional automotive or industrial Ethernet PHY. For additional details about the boards that can be attached to the Ethernet add-on board connector, refer to the respective board user guide.

The Control Card also includes multiple, 1:2 MUX/DEMUX high-speed switches to route all Ethernet ports between the HSEC, on-board Ethernet PHY, and Ethernet add-on board connector. For a complete description of all Ethernet routing for the control card, refer to Section 2.11.2.1.