SLVAEP4 October   2023 BQ79600-Q1 , BQ79612-Q1 , BQ79614-Q1 , BQ79616 , BQ79616-Q1 , BQ79652-Q1 , BQ79654-Q1 , BQ79656-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Receiver Topology and Common Mode Voltages
  6. 3 Signal Integrity Requirements
    1. 3.1 Receiver Timing Requirements
    2. 3.2 Receiver Threshold Requirements
  7. 4 Debug Fault Registers
  8. 5 Isolation Types
    1. 5.1 Transformer Isolation
    2. 5.2 Capacitor Only Isolation
    3. 5.3 Capacitor and Choke Isolation
  9. 6 Mixed Isolation Circuits using bq79600-Q1
  10. 7 Ring Architecture
  11. 8 Noise Immunity and Emissions
  12. 9 Daisy Chain Cable Selection
  13. 10References

4 Debug Fault Registers

The bq7961X devices come equipped with many fault registers that help the user determine the cause and effect of signal noise between devices. Most importantly, we recommend always checking the FAULT_SUMMARY register to determine if an error occurs during communication. If the FAULT_SUMMARY flags a FAULT_COMM error then the next steps would be to read back the 3 FAULT_COMM1/2/3 registers and DEBUG registers to identify the exact issue. Refer to the bq79616-Q1 data sheet section 9.6.4.14 to learn more about these registers and indicators.