Can COL, CRS and RX_ER on MII be unused on STM32F407 ?
Posted on December 17, 2013 at 22:25We need (don't ask why) to use a PHY which does not have COL, CRS or RX_ER pins. Can these be tied off to appropriate logic levels on the STM32F407xx we're going to be using and still result in proper operation?T...