Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet

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SAM4E [DATASHEET]

Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14

The Ethernet MAC (GMAC) module implements a 10/100 Mbps Ethernet MAC compatible with the IEEE 802.3
standard. The GMAC can operate in either half or full duplex mode at all supported speeds. The 

 is used to select the speed, duplex mode and interface type (MII ).

The GMAC comprises two constituent components:

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GEM_MAC controlling transmit, receive, address checking and loopback

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GEM_TSU calculates the IEEE 1588 timer values

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Compatible with IEEE Standard 802.3

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10, 100 Mbps operation

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Full and half duplex operation at all supported speeds of operation

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Statistics Counter Registers for RMON/MIB

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MII interface to the physical layer

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Integrated physical coding

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Direct memory access (DMA) interface to external memory

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Programmable burst length and endianism for DMA

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Interrupt generation to signal receive and transmit completion, or errors

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Automatic pad and cyclic redundancy check (CRC) generation on transmitted frames

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Automatic discard of frames received with errors

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Receive and transmit IP, TCP and UDP checksum offload. Both IPv4 and IPv6 packet types supported

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Address checking logic for four specific 48-bit addresses, four type IDs, promiscuous mode, hash matching 
of unicast and multicast destination addresses and Wake-on-LAN

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Management Data Input/Output (MDIO) interface for physical layer management

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Support for jumbo frames up to 10240 bytes

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Full duplex flow control with recognition of incoming pause frames and hardware generation of transmitted 
pause frames

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Half duplex flow control by forcing collisions on incoming frames

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Support for 802.1Q VLAN tagging with recognition of incoming VLAN and priority tagged frames

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Support for 802.1Qbb priority-based flow control

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Programmable Inter Packet Gap (IPG) Stretch 

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Recognition of IEEE 1588 PTP frames

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IEEE 1588 time stamp unit (TSU)

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Support for 802.1AS timing and synchronization