Hi Hung-san,
As we had talked before , I got new information from the customer.
https://e2e.ti.com/support/interface/f/138/p/818187/3042308#3042308
>Register 0, bit 10 can be used to isolate the MAC interface.
As y ou suggested,they had changed the bit 10 of register 0 but thus issue had not been resolved.
So,does we need to resolve at DP83867? or does we need to resolve at processor side if DP83867 can not resolve this issue?
Best Regards,
Koji Hamamoto