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DP83620: Ethernet Phy

Part Number: DP83620
Other Parts Discussed in Thread: DP83630, DP83822HF, DP83822IF

Hi Team,

We would like to ask your help regarding our customer's inquiry below.

I have a CPU that supports one MII interface. I need to provide a 10/100 Base Tx as well as a 100Base FX interface, but only one needs to operate at any given time which I should be able to select using a simple method. How can I achieve this using DP83620 or DP83630? You can also suggest any other Ethernet Phy in addition to DP83620/DP83630 to achieve the same. Using two independent phy is also permitted but selection should be simple.



  • Hi Danilo, 

    This should be possible. You could do this with one PHY and a mux, or two PHYs, either would work. Register configuration can be used to enable/disable 100BASE-FX operation. We recommend using the DP83822HF or DP83822IF instead of the DP83630, since it is a newer part.