If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
你好，是的，datasheet 上page47有：The DP83849IF requires a single initialization sequence of 32 bits of preamble following hardware/software reset. This requirement is generally met by the mandatory pull-up resistor on MDIO in conjunction with a continuous MDC, or the management access made to determine whether Preamble Suppression is supported.
