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

1 Introduction

System Basis Chips (SBCs) are designs for designers to use in designs due to the high number of features that are integrated into one package as well as the ability to enter into a low-power sleep mode. SBCs generally turn off bus communication during sleep mode to save power. This leads to a critical question: How does the SBC “know” when to wake up?. The answer to that question is simply through device wake up routines. This document discusses the following: the sleep mode differences between the SBC and integrated transceiver, how to wake the device if the communication bus is turned on during sleep, and local wake up through WAKE pins. Other topics discussed are digital wake ups from the MCU, cyclic wake up, cyclic sensing wake, and CAN BWRR, with a note on partial networking and selective wake.