SNLA465 January   2025 DP83TC817S-Q1 , DP83TC818S-Q1 , DP83TG721S-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1The Role of Time Sensitive Networking in Automotive Applications
  5. 2Generalized Precision Time Protocol Algorithm Overview
    1. 2.1 gPTP Timetamping Handshake Process
  6. 3Methods of Implementing gPTP: Timestamping Location
  7. 4Fixed Latency and Recovered Clock Modes
  8. 5Event Triggers and Monitors
  9. 6Simplified gPTP Integration
  10. 7Conclusion
  11. 8References

7 Conclusion

Time synchronization is essential for numerous automotive applications. IEEE 802.1AS serves as a reliable method for achieving time synchronization. There are multiple ways to implement IEEE 802.1AS, but timestamping at the PHY level delivers the most precise level of synchronization. TI’s DP83TG721 and DP83TC818/7 offer additional features such as fixed latency mode and MDI recovered clock for improved synchronization, event trigger and monitor features reduce the processor overhead for these TSN applications, and the generation of PHY status frames for simplified gPTP integration.