SNLA493 August   2025 DS90UB935-Q1 , DS90UB960-Q1

 

  1.   1
  2.   Introduction
  3. 1Diagnostic mechanisms
    1. 1.1 Link lock detection
    2. 1.2 Video pass detection
    3. 1.3 Enable or disable RX forwarding
    4. 1.4 Clear the deserializer error status register
    5. 1.5 Disable DFE module
    6. 1.6 Reset SER/Sensor configuration and enable DFE module
  4. 2Flow chart of the system hot swap mechanism
  5. 3Reference codes
  6. 4References

1.1 Link lock detection

To determine whether the deserializer has successfully established a link, the deserializer can check the register 0x4D bit0 to validate if a link has been established with the far-end serializer.

board.WriteI2C(DesAddr,0x4c,0x01/12/24/38) # Select RX0/1/2/3

Check if 0x4D bit 0 is 1 and determine if it is locked with RX0/1/2/3 serializer