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DP83TC811R-Q1: pls help see this question.

Part Number: DP83TC811R-Q1

We currently use DP83TC811RWRNDTQ1 chip as the PHY chip of the BroadR-Reach interface of our imaging radar, and the test found that the output data of the BroadR-Reach interface stops abnormally under the condition of long-term operation at high temperature. In the case of uninterrupted power, reset the PHY chip, and the communication can be restored. So, I would like to inquire, in this case, is the data of the PHY configuration still saved? What is the reason for this phenomenon of PHY?