SPRACF2A April   2018  – January 2026 AM2434 , AM3351 , AM3352 , AM3354 , AM3356 , AM3357 , AM3358 , AM3359 , AM4372 , AM4376 , AM4377 , AM4378 , AM4379 , AM5706 , AM5708 , AM5716 , AM5718 , AM5726 , AM5728 , AM5729 , AM5746 , AM5748 , AM5749 , AM6442

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Ethernet Redundancy in Smart Grid Substations
    1. 1.1 High Availability Seamless Redundancy (HSR)
    2. 1.2 Parallel Redundancy Protocol (PRP)
  5. 2HSR/PRP Implementation in Sitara Processors
    1. 2.1 PRU_ICSSG Overview
    2. 2.2 PRU_ICSSG HSR/PRP Architecture
    3. 2.3 PRU_ICSSG HSR/PRP Features
    4. 2.4 PRU_ICSSG HSR/PRP Firmware
    5. 2.5 Benefits of PRU_ICSSG HSR/PRP
    6. 2.6 Linux HSR/PRP Solution
    7. 2.7 RTOS HSR/PRP Solution
  6. 3HSR/PRP SDK Support
  7. 4Summary
  8. 5References
  9. 6Revision History

4 Summary

Texas Instruments supports High-availability Seamless Redundancy (HSR) and Parallel Redundancy Protocol (PRP) for real-time networking applications requiring high reliability of critical traffic. These protocols provide redundancy in smart grid substations where fast and fault tolerant communication is a key requirement. Sitara microprocessors provides Linux and RTOS HSR/PRP solutions for AM64x/AM243x devices using the PRU_ICSSG subsystem. Using the PRU_ICSSG subsystem enables offloading key HSR/PRP functions, resulting in decreased CPU load and fowarding latency.