SDAA106 June   2026 TXE8116-Q1 , TXE8124-Q1 , TXE8148

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Overview of the Fail-Safe Register Set
  6. 3How to Write to a Fail-Safe Register
  7. 4Fail-Safe Use Case #1 - MCU Communication Loss- Limp Home Mode
  8. 5Fail-Safe Use Case #2 - MCU Software Update / Reboot
  9. 6Summary
  10. 7References

6 Summary

The TXE81xx-Q1 SPI controlled I/O expander can be used in automotive zone control modules that require fail-safe states during a communication loss of an MCU or processor. TXE81xx-Q1 is versatile with its fail-safe register set, while also providing additional I/O's (16-bit, 24-bit, 48-bit) necessary for large zone control module platforms.