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DP83867E: Question for speed optimization bits

Part Number: DP83867E

Hi team,

Can you let me know how to set speed optimization related bits in order to get 100Mbps automatically from 1Gbps when the link is down?

In some test, the link is still connected with1Gbps (not 100Mbps), when releasing after shorting MDI lines focibly for linkdown. 

Below is the register access value then. Can you look into what is wrong? Any recommendation?

0x0011 : Read data: 0xBC02

0x0012 : Read data=0xFD7F

0x0014:  Read data=0x2BC7

Thanks,

Best Regards,

Sam Lee