We have designed a board with W5300, and we would to realize an optional interface with a Micrel switch KSZ8873 by means of the MII interface.
The Micrel’s switch could be interfaced in MAC or PHY mode.
Which configuration should be used? there is any application note to follow?
thanks and regards.
We don’t have any application note and reference schematics like your application.
I think phy or mac interface has no problem but we don’t know what’s your application and we cannot guarantee.
So, I recommend to test yourself.
looking better in the datasheet, seems that the wiznet need a PHY layer outside the MII interface.
So, I think that the Wiznet should be configured in PHY mode.