SLAAED9 November   2023 TAA5412-Q1 , TAC5311-Q1 , TAC5312-Q1 , TAC5411-Q1 , TAC5412-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Diagnostic Monitoring Architecture
  6. 3 Monitored Faults
    1. 3.1 Microphone Faults
      1. 3.1.1 Inputs Shorted to Ground
      2. 3.1.2 Inputs Shorted to MICBIAS
      3. 3.1.3 Input Open Circuit
      4. 3.1.4 Input Pins Shorted Together
      5. 3.1.5 Input Overvoltage Detection
      6. 3.1.6 Inputs Shorted to VBAT
    2. 3.2 Line Out Faults
      1. 3.2.1 Output Overcurrent
      2. 3.2.2 Virtual Ground
    3. 3.3 Other Faults
      1. 3.3.1 MICBIAS Overvoltage
        1. 3.3.1.1 DIAG_CFG11 Register (page = 0x01, address = 0x51) [Reset = 0x40]
      2. 3.3.2 MICBIAS Overcurrent
      3. 3.3.3 MICBIAS Load Current
        1. 3.3.3.1 DIAG_CFG6 Register (page = 0x01, address = 0x4C) [Reset = 0xA2]
        2. 3.3.3.2 DIAG_CFG7 Register
      4. 3.3.4 Overtemperature Fault
      5. 3.3.5 Supply Back Pumping
  7. 4 Enabling Diagnostics and Programming Thresholds
    1. 4.1 DIAG_CFG0 Register (page = 0x01, Address = 0x46) [Reset = 0x00]
    2. 4.2 DIAG_CFG1 Register (page = 0x01, Address = 0x47) [Reset = 0x37]
    3. 4.3 DIAG_CFG2 Register (page = 0x01, Address = 0x48) [Reset = 0x87]
  8. 5 Fault Diagnostic Setup Procedure
  9. 6 Fault Reporting
    1. 6.1 Live Registers
      1. 6.1.1 CHx_LIVE Register (page = 0x01, address = 0x3D) [Reset = 0b]
      2. 6.1.2 CH1_LIVE Register (page = 0x01, address = 0x3E) [Reset = 0h]
      3. 6.1.3 INT_LIVE0 Register (page = 0x01, address = 0x3C) [Reset = 00]
      4. 6.1.4 INT_LIVE1 Register (page = 0x00, address = 0x42) [reset = 0x00]
      5. 6.1.5 INT_LIVE2 Register (page = 0x00, address = 0x43) [reset = 0x00]
    2. 6.2 Latched Registers
      1. 6.2.1 Clearing Latched Registers
    3. 6.3 Fault Filtering and Response Time
      1. 6.3.1 Debounce
      2. 6.3.2 Scan Rate
        1. 6.3.2.1 DIAG_CFG4 Register (page = 0x01, address = 0x4A) [reset = 0xB8]
      3. 6.3.3 Moving Average
        1. 6.3.3.1 DIAG_CFG5 Register (page = 0x01, address = 0x4B) [reset = 0h]
  10. 7 Responding to a Fault
    1. 7.1 INT_CFG Register (page = 0x00, address = 0x42) [reset = 0b]
      1. 7.1.1 DIAG_CFG10 Register (page = 0x01, address = 0x50) [Reset = 0x88]
    2. 7.2 Manual Recovery Sequence
    3. 7.3 Recommended Fault Register Read Sequence
  11. 8 Using PurePath Console
    1. 8.1 Advanced Tab
    2. 8.2 Diagnostics Walk-through
      1. 8.2.1 Diagnostics Configuration
      2. 8.2.2 Debounce Configuration
      3. 8.2.3 Latched Fault Status
  12. 9 Diagnostic Monitoring Registers
    1. 9.1 Voltage Measurements
    2. 9.2 MICBIAS Load Current
    3. 9.3 Internal Die Temperature
  13. 10Summary
  14. 11References

6.3.2.1 DIAG_CFG4 Register (page = 0x01, address = 0x4A) [reset = 0xB8]

This register is configuration register 4 for input fault diagnostics setting.

Table 6-6 DIAG_CFG4 Register Field Descriptions
BitFieldType(1)ResetDescription
7-6REP_RATE[1:0]R/W10bFault monitoring scan repetition rate
0d = Continuous back to back scanning of selected channels input
pins without any idle time
1d = Fault monitoring repetition rate of 1 ms for selected channels
input pins scanning
2d = Fault monitoring repetition rate of 4 ms for selected channels
input pins scanning
3d = Fault monitoring repetition rate of 8 ms for selected channels
input pins scanning
5-4RESERVEDR/W11bReserved bits; Write only reset values
3-2FAULT_DBNCE_SEL[1:0]R/W10bDebounce count for all the faults (except VBAT_IN short when VBAT_IN < MICBIAS)
0b = 16 counts for debounce to filter-out false faults detection
1b = 8 counts for debounce to filter-out false faults detection
2b = 4 counts for debounce to filter-out false faults detection
3b = No debounce count
1VSHORT_DBNCER/W0bVBAT_IN short debounce count
0b = 16 counts for debounce to filter-out false faults detection
1b = 8 counts for debounce to filter-out false faults detection
0DIAG_2X_THRESR/W0bDiagnostic thresholds range scale
0d = Thresholds same as configured
1d = All the configuration thresholds gets scale by 2 times
(1) R/W = Read or Write