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[FAQ] DP83822I: 822/826 Odd Nibble Detection disable for EtherCAT application

Hillman Lin
Mastermind 25005 points
Part Number: DP83822I

For 822/826 PHYs, Odd Nibbles Detection register need to be disable in order to prevent unexpected link loss in EtherCAT application.

DP83826PHY:

  • Odd Nibble Detection could be disable by strap 1 CLKOUT/LED1 pin in enhanced mode
  • Odd Nibble Detection is disable by default in Basic mode

 DP83822PHY:

  • Odd Nibble Detection could be disable through register 0x000A[1]