I am attempting to use the WIZ610wi in a design where it will connect to an Ethernet switch over the MII interface. I have not found the documentation on the WIZ610wi to be complete as to this inteface. I have the following questions. I intend to configure the switch for reverse MII mode so that I can connect to the WIZ610wi which I am assuming functions as a MAC.
Does the Wiz610wi MII inteface look like a MAC or a PHY or can it operate as either based on configuration? From the evaluation board schematic it appears as a MAC, but other documentation seems to show otherwise.
In the WIZ610wi datasheet, the MDC signal is listed as an input. This does not make sense if this part acts as a MAC, then the MDC signal needs to be an output so that it can configure the external PHY. The directionality of this signal cannot be determined from the Evaluation board schematic.