Can a processor handle multiple PHY ?
Generally it is possible to have several PHYs connected to the EMAC peripheral. Still, you need to check that: a) the specific sw TCP/IP stack supports it b) the specific processor EMAC peripheral does not mention differently For connecting multiple phys it is possible to leverage the usage of the MDIO interface; the MDIO module is used for initialization, management and query of the phy status, thus provides also a better way to configure the phy(s) instead of having them configured (statically) in hardware. So for this to work you will need to have an MDIO interface connected to both (all) phys from the processor side. Also make sure that the MDIO IDs are different for each phy. On the hardware side, all the signals for the N phys will have to be connected together. If a PHY is not active it should be in tri-state on the output and disregard input. This should be something enforced by the specification (i.e. to disconnect the the data signals once the phy is not active), but it shoul
