SNLA383 august   2023 DP83822H , DP83822HF , DP83822I , DP83822IF

 

  1.   1
  2.   DP83822 Cable Break Test for Profinet Compliance
  3.   Trademarks
  4. 1Introduction
  5. 2Test Setup and Procedure
  6. 3Cable Break Test
    1. 3.1 Cable Break Test Script Configuration
    2. 3.2 Post-Script Results
  7. 4Conclusion

Cable Break Test Script Configuration

begin

001F 8000 // Hard reset (clears registers)

000B 120F // Ensures a fast link down in all scenarios

0101 2082 // Disables internal filter during a phase of link-up training

0106 D4FD // Configures filter to solve issues with shorting channels

0107 0605 // Set default value of register

0126 462B // Adjust timer for DSP state shift to ensure a fast link up

04D4 3322 // Optimization of bandwidth settings for time loop

0121 0A00 // Tighten threshold to see if device should link up

0122 0400 // Tighten threshold to see if device should link up

0123 0200 // Tighten threshold to see if device should link up

010F 0100 // Selects DC corrected output as input for the gain correction loop

0111 6009 // Provide initial value of gain index

0129 009F // Provide limits of max gain index and min gain index

0130 470A // Disable gain retrain

0410 6000 // Enable fixed value for DC correction

0416 1070 // Bandwidth adjusted to work across cable lengths

0418 3F00 // Gain adjusted to work across cable lengths

0450 2141 // Bypass equalizer calibration

003F B40F // Timer adjusted for descrambler unlock

040D 000E // Adjust auto-negotiation pulse threshold

04D1 0182 // Disables EEE (optional)

001F 4000 // Soft reset

end