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TM4C1292NCPDT: External Ethernet PHY device interface for MDIO (SMI)

Part Number: TM4C1292NCPDT

Hello Champs,

One of my customer is developing TM4C1292 + External Ethernet PHY switch IC for implementing daisy chain solution.

They need to access other than MII PHY registers which can access via SMI(Serial Management Interface).

So they are need to have MDIO interface source code or how to control the register in the TM4C1292 MAC register area.

Would you please guide me if you have any source code or how to access this?

I found below related post, but I think I didn't find answer.

Regards,
Ernest Cho