Features

Benefits

PCI Express* Features

Uses x4 PCI Express interface on Memory Control Hub (MCH) device

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Bus sharing not required

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Low latency path to memory

2 Gbps peak bandwidth per direction per PCI Express lane

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Supports dual-port Gigabit Ethernet at wire speed

Complies with peripheral component interconnect (PCI) Power

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Provides PCI Express power management capabilities for PC and embedded applications

Management 1.1 and advanced configuration and power interface

(ACPI) 2.0 register set (D0 & D3 power states, Network Device Class

Power Management Specification 1.1)

High bandwidth density per pin

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Less congested board routing

Gigabit MAC/PHY Advanced Features

Wide, pipelined internal data path architecture

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Low-latency data handling

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Superior direct memory access (DMA) transfer-rate performance

Multiple, optimized transmit (Tx) and receive (Rx) queues

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Network packet handling without waiting or buffer overflow

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Efficient packet prioritization

Dual 48 KB configurable Rx and Tx first-in/first-out (FIFO) buffers

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No external FIFO memory requirements

with support for error correction code (ECC)

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FIFO size adjustable to application

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Error detection and correction for FIFO data

Support for transmission and reception of packets up to 9 Kbytes

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Enables use of jumbo frames

IEEE 802.3* compliant flow-control support with software-

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Frame loss reduced from receive overruns

controllable pause times and threshold values

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Hardware or software control over transmission of pause frames

Caches up to 64 packet descriptors per queue

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Efficient use of PCI Express bandwidth

Programmable host memory receive buffers (256 Bytes to 16 KBytes)

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Efficient use of PCI Express bandwidth

and cache line size (64 Bytes to 128 Bytes)

Descriptor ring management hardware for Tx/Rx with optimized

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Simple software programming model

descriptor fetching and write-back mechanisms

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Efficient use of system memory and PCI Express

Mechanism for reducing interrupts from Tx/Rx operations

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Maximizes system performance and throughput

Integrated PHY for 10/100/1000 Mbps (full- and half-duplex)

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Smaller footprint, lower power dissipation compared to multi-chip MAC and PHY solutions

IEEE 802.3 auto-negotiation support

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Automatic link configuration for speed, duplex, flow control

IEEE 802.3 PHY compliance and compatibility

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Robust operation over installed base of Category-5 twisted-pair cabling

Built-in cable diagnostics and adjustments for cable faults

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Improved end-user troubleshooting

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Tolerance of common wiring faults

Host Offloading Features

Tx/Rx IP, TCP, and UDP checksum offloading (IPv4, IPv6)

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Lower processor utilization

Tx TCP segmentation (IPv4, IPv6)

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Increased throughput and lower processor utilization

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Compatible with large send offload (in Microsoft Windows* operating systems)

Packet filtering including:

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16 exact-matched packets (unicast or multicast)

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Ability to use advanced packet filtering in software

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4096-bit hash filter for multicast frames

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Lower processor utilization

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Promiscuous (unicast and multicast) transfer mode support

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Filtering of invalid frames

IEEE 802.1q* virtual local area network (VLAN) support with VLAN tag

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Ability to create multiple VLAN segments

insertion, stripping, and packet filtering for up to 4096 VLAN tags

Manageability Features

Two SMB ports, one with Fast Management Link capability

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Allows packet routing to and from either LAN port and a Board Management Controller (BMC) such as IPMI

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Manageability data transfers up to 8 Mbps peak rate

Alerting Standards Format 2.0

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Standard alerting capability to notify IT of system events

Advanced pass through

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Filtering and redirection for management packets

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Support for serial text and keyboard redirection and remote floppy/CD

Preboot eXecution Environment (PXE) flash interface support

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Enables system boot up via the LAN

(32 bit and 64 bit)

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Flash interface for PXE image

Simple Network Management Protocol (SNMP) and Remote

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Easy system monitoring with industry-standard consoles

Network Monitoring (RMON) statistic counters

SDG 3.0, Wired for Management (WfM) 3.0 and PC2001 compliant

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Remote network management through Desktop Management Interface (DMI) 2.0 and SNMP

Wake on LAN support

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Packet recognition and wake-up for LAN on motherboard applications without software configuration