TIDUFG8 December   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Industrial Protocol Fragmentation
      2. 2.2.2 Real-Time Performance and Determinism
      3. 2.2.3 Component Cost and PCB Space Constraints
      4. 2.2.4 Protocol Certification and Software Maintenance
    3. 2.3 Highlighted Products
      1. 2.3.1 AM2612 Microcontroller
      2. 2.3.2 DP83826A Ethernet PHY
      3. 2.3.3 TPS65214 Power Management IC
      4. 2.3.4 LMK3C0105 Clock Generator
  9. 3System Design Theory
    1. 3.1 Key Requirements and Design Considerations
      1. 3.1.1 Operating Modes
    2. 3.2 Software Architecture and Boot Flow
    3. 3.3 Industrial Communication Subsystem (ICSS)
    4. 3.4 Clocking and Synchronization
    5. 3.5 Power Supply
      1. 3.5.1 Multiprotocol Industrial Ethernet Subsystem Power Supply
      2. 3.5.2 System Power Supply
    6. 3.6 Real-Time Ethernet Media Independent Interface (MII)
      1. 3.6.1 SYNC/LATCH Pins for Real-Time Tasks
      2. 3.6.2 Layout Considerations
        1. 3.6.2.1 Layout Guidelines
      3. 3.6.3 EMI and EMC Considerations
      4. 3.6.4 AM2612 Bootstrap Interface
      5. 3.6.5 RJ45 Ethernet Interface
      6. 3.6.6 Industrial User Interface
      7. 3.6.7 Programming and Debugging Options
      8. 3.6.8 USB 2.0 Interface
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5.     Trademarks
  11. 5About the Author

Description

This reference design accelerates development of multiprotocol 100Mbps industrial Ethernet nodes. The design allows engineers to quickly prototype and deploy EtherCAT®, PROFINET®, EtherNet/IP, and Modbus® Transmission Control Protocol (TCP) on AM261x with Integrated Industrial Communication Subsystem (ICSS). The approach cuts hardware spins, simplifies clocking and power, and delivers deterministic, time-synchronized factory automation performance.