This user’s guide provides a functional description of the Ethernet Media Access Controller (EMAC) and
physical layer (PHY) device Management Data Input/Output (MDIO) module integrated into the
TMS320DM646x Digital Media System-on-Chip. Included are the features of the EMAC and MDIO
modules, a discussion of their architecture and operation as well as of how these modules connect to the outside world, and the registers description for each module.