Dave Jones

float the phy pins on MCF5223x if unused?

Discussion created by Dave Jones on Feb 21, 2009
Latest reply on Feb 23, 2009 by MrBean

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.....?