SDAA128 November   2025 TCAN2410-Q1 , TCAN2411-Q1 , TCAN2450-Q1 , TCAN2451-Q1 , TCAN2845-Q1 , TCAN2847-Q1 , TCAN2855-Q1 , TCAN2857-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Sleep Mode of the Transceiver vs. Sleep Mode of the SBC
  6.   Wake Up With SPI Communication Active
  7. 3 Local Wake Up (LWU)
  8. 4 Digital Wake Up
  9. 5 Cyclic Wake Up
  10. 6 Extending the Timer for Cyclic Wake Ups with External Components
  11. 7 Cyclic Sensing Wake
  12. 8 CAN BWRR
  13. 9 Partial Networking
  14. 10Summary
  15. 11References

Abstract

System Basis Chips (SBCs) allow designers the opportunity to integrate power management, protection features, and CAN/LIN communication into one single package unified by a single control system. These devices also have the benefit of being low-power with many being able to achieve <100uA of current during sleep mode, which is critical for battery applications. However, the SBC cannot always be in sleep mode and must switch between modes to complete the designed tasks. By default, most SBCs cannot communicate through a SPI bus during sleep mode, so the question is asked: how does the SBC wake up after it is asleep? This is where the WAKE functionality of SBCs is used and this document gives an overview of commonly used wake methods for various SBCs.