The combined features for Tx and Rx are as follows:
- Separate transmission, reception, and control interfaces to the application
- Little-endian mode for Transmit and Receive paths
- 10, 100 data transfer rates with the following PHY interfaces:
- IEEE 802.3-compliant MII (default) interface to communicate with an external Ethernet PHY
- RMII interface to communicate with an external Fast Ethernet PHY
- RevMII interface to directly communicate with a remote MAC
- Half-duplex operation:
- CSMA/CD Protocol support
- Flow control using back pressure support (based on implementation-specific
white papers and UNH Ethernet Clause 4 MAC Test Suite - Annex D)
- Standard IEEE 802.3az-2010 for Energy Efficient Ethernet in MII PHYs.
- Full-duplex flow control operations (IEEE 802.3x Pause packets and Priority flow control)
- Network statistics with RMON or MIB Counters (RFC2819/RFC2665)
- Support Ethernet packet timestamping as described in IEEE 1588-2002 and IEEE 1588-2008 (64-bit timestamps given in the Tx or Rx status of PTP packet). Both one-step and two-step timestamping is supported in TX direction.
- Flexibility to control the Pulse-Per-Second (PPS) output signal
- MDIO (Clause 22 and Clause 45) master interface for
PHY device configuration and management