SNLA437 December   2023 DP83822H , DP83822HF , DP83822I , DP83822IF , DP83825I , DP83826E , DP83826I

1.   1
2.   Abstract
3.   Trademarks
4. 1DP83822 Application Overview
5. 2Troubleshooting the PHY Application
   1. 2.1  Schematic and Layout Checklist
   2. 2.2  Verify Successful Power-up of PHY
   3. 2.3  Read and Check Register Values
   4. 2.4  Peripheral Pin Checks
      1. 2.4.1 Probe the RESET_N Signal
      2. 2.4.2 Probe the RBIAS pin
      3. 2.4.3 Probe the Serial Management Interface (MDC, MDIO) Signals
      4. 2.4.4 Probe the MDI Signals
   5. 2.5  Verifying Strap Configurations During Initialization
   6. 2.6  Debugging Link Quality
   7. 2.7  Built-In Self Test With Various Loopback Modes
   8. 2.8  Debug the Fiber Connection
   9. 2.9  Debug the MAC Interface
   10. 2.10 Debug the Start of Frame Detect
   11. 2.11 Tools and References
       1. 2.11.1 DP83822 Register Access
       2. 2.11.2 Extended Register Access
       3. 2.11.3 Software and Driver Debug on Linux
          1. 2.11.3.1 Common Terminal Outputs and Solutions
6. 3References

DP83822 Troubleshooting Guide