SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 1265

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

41. Ethernet MAC 10/100 (EMAC)
41.1
41.2
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Description
Embedded Characteristics
The EMAC module implements a 10/100 Ethernet MAC compatible with the IEEE 802.3 stan-
dard using an address checker, statistics and control registers, receive and transmit blocks, and
a DMA interface.
The address checker recognizes four specific 48-bit addresses and contains a 64-bit hash regis-
ter for matching multicast and unicast addresses. It can recognize the broadcast address of all
ones, copy all frames, and act on an external address match signal.
The statistics register block contains registers for counting various types of event associated
with transmit and receive operations. These registers, along with the status words stored in the
receive buffer list, enable software to generate network management statistics compatible with
IEEE 802.3.
• EMAC0 supports MII interface to the physical layer, EMAC1 supports RMII interface to the
• 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
• 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
•
• Multiple Buffers per Receive and Transmit Frame
• Jumbo Frames Up to 10240 bytes Supported
physical layer
Support for 802.1Q VLAN Tagging with Recognition of Incoming VLAN and
Frames
SAM3X/A
SAM3X/A
Priority Tagged
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