Pablo Baena

Phyceiver and MCF52259 wiring

Discussion created by Pablo Baena on Mar 26, 2013
Latest reply on Sep 16, 2013 by Pablo Baena

Hi, I'm new into microcontroller ethernet connectivity. I have a TWR-MCF52259 with TWR-SERIAL and have seen that MII signals of  Micrel phyceiver is connected to the microcontroller through 33ohm resistors (some 16). Well I guess these are for protection of the ports, but now that I designing my own application board for production, I would like to know if anyone has had any experience with direct connection. My board is quite small and lots of signals there, so I hope to save some valuable space by not including this resistors in my design.  I've looked the web for any example of connection, but no results though.


Any comment would be very appreciated, thanks.