[802.3ae] some questions about mdio

["=?gb2312?B?1cUg06jTqA==?=" <amyliya@xxxxxxxxxxx>]

hi,
I  know  that  mdio  is  the  management interface  between the  sta and 
phy,
but where the write and read command come from? And, if  they  is 
determined by some register,then what the registers are and where they come 
from?

                                                         thank,
                                                            amyliya


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