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DP83822HF: Register operation problem

GARETH OU
Guru 11485 points
Part Number: DP83822HF

Tool/software:

Hi 

I modified some registers during the test of DP83822HF registers. I thought the IC would reset after restarting, but the behavior of the IC changed after a certain test. RD_P, RD_M, TD_P, TD_M changed from unstable transmission to no communication. Does the register of PHY IC DP83822HF have a storage function?