I have a board with several MCF52233 chips, only one of which will be using the ethernet port.
Should the PHY_RXN, RXP, TXN, and TXP pins be left floating on the ones where the ethernet is not used? Or tied to ground? Or tied to VCC with resistors? Or.....?
I think placing 50 Ohm pullups to Vdd on all 4 of them is on the safe side.