82544EI Datasheet, PDF (9/52 Pages) Intel Corporation – Gigabit Ethernet Controller

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82544EI Gigabit Ethernet Controller Networking Silicon Datasheet
Additional Features of the 82544EI Gigabit Ethernet
Controller
PCI/PCI-X Features
• Operates in either 5V or 3.3V PCI signaling environments
• 64-bit addressing for systems with more than 4 GB of physical memory
• Efficient PCI bus master operation, supported by optimized internal DMA controller
• Command usage optimization for advanced PCI commands such as MWI, MRM and MRL,
and PCI-X commands such as MRD, MRB and MWB
PHY-Specific Features
• Complete full duplex and half duplex support
• Next page support
• Automatic polarity correction
• Digital implementation of adaptive equalizer and cancellers for echo and crosstalk
Host Offloading Features
• TCP segmentation (Large send)
• Packet filtering based on checksum errors
• Supports for various address filtering modes:
— 16 exact matches (unicast or multicast)
— 4096-bit hash filter for multicast frames
— Promiscuous unicast and promiscuous multicast transfer modes
• IEEE 802.1q VLAN support
— Ability to add and strip IEEE 802.1q VLAN tags
— Packet filtering based on VLAN tagging, supporting 4096 tags
• SNMP and RMON statistic counters
Additional Performance Features
• Programmable host memory receive buffers (256 B to 16 KB)
• Programmable cache line size from 16 B to 128 B for efficient usage of PCI bandwidth
Datasheet
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