I am currently reviewing TLK110 for the Ethernet PHY between a 32 bit microcontroller MII Ethernet port and connector. I have never designed an Ethernet port into an embedded controller board before so I am in the process of learning as much as I can about this. My question about this particular part concerns the PHYAD pins. What is the point of being able to address multiple TLK110s when there is only one MII interface? What can the multiple addresses be used for?
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