[En-Nut-Discussion] EMAC and PHY separation?

uprinz2 at netscape.net uprinz2 at netscape.net
Thu Oct 21 17:24:21 CEST 2010


Hi!


AFAIK the PHY can be selected in a wide range independant of the chip providing the (R)MII, the EMAC.
So for me it looks like that the best way to handle these chips is to provide two separate drivers for them. 


This is not true for chips that incorporate both of them like modern Micrel or others. 
But even there the driver for the PHY and the EMAC portion can be handled in different driver source files.


This makes the things mor configureable via nutconf and does not require the designer of a hardware to use the one PHY supported by the devel-kit but gives him freedom of choice.


Any comments on that?


Best regards
Ulrich






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