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# 1.2.5.6 Ethernet EMAC Driver Library

The EMAC module implements a 10/100 Ethernet MAC compatible with the IEEE 802.3 standard using an address checker, statistics and control registers, receive and transmit blocks, and a DMA interface.

Embedded Characteristics

- EMAC0 supports MII and RMII Interlaces to the Physical Layer (EMAC1 supports RMII only)
- Compatible with IEEE Standard 802.3
- 10 and 100 Mbit/s Operation
- Full- and Half-duplex Operation
- Statistics Counter Registers
- Interrupt Generation to Signal Receive and Transmit Completion
- DMA Master on Receive and Transmit Channels
- Transmit and Receive FIFOs
- Automatic Pad and CRC Generation on Transmitted Frames
- Automatic Discard of Frames Received with Errors
- Address Checking Logic Supports Up to Four Specific 48-bit Addresses
- Supports Promiscuous Mode Where All Valid Received Frames are Copied to Memory
- Hash Matching of Unicast and Multicast Destination Addresses
- External Address Matching of Received Frames
- Physical Layer Management through MDIO Interface
- Half-duplex Flow Control by Forcing Collisions on Incoming Frames
- Full-duplex Flow Control with Recognition of Incoming Pause Frames and Hardware Generation of Transmitted Pause Frames
- Support for 802.1Q VLAN Tagging with Recognition of Incoming VLAN and Priority Tagged Frames
- Multiple Buffers per Receive and Transmit Frame
- Wake-on-LAN Support
- Jumbo Frames Up to 10240 bytes Supported