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Reading PHY Registers

NetDev_MII_Rd() is implemented within the Ethernet device driver file, since (R)MII bus reads are associated with the MAC device. In the case that the PHY communication mechanism is separate from the MAC, then a handler function may be provided within the net_bsp.c file and called from the device driver file instead. Note: This function must be implemented with a timeout and should not block indefinitely should the PHY fail to respond.

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