82571EB Datasheet, PDF (2/4 Pages) Intel Corporation – Gigabit Ethernet Controller

Features
PCI Express* Features
Uses x4 PCI Express interface on Memory Control Hub (MCH) device
2 Gbps peak bandwidth per direction per PCI Express lane
Complies with peripheral component interconnect (PCI) Power
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
Gigabit MAC/PHY Advanced Features
Wide, pipelined internal data path architecture
Multiple, optimized transmit (Tx) and receive (Rx) queues
Dual 48 KB configurable Rx and Tx first-in/first-out (FIFO) buffers
with support for error correction code (ECC)
Support for transmission and reception of packets up to 9 Kbytes
IEEE 802.3* compliant flow-control support with software-
controllable pause times and threshold values
Caches up to 64 packet descriptors per queue
Programmable host memory receive buffers (256 Bytes to 16 KBytes)
and cache line size (64 Bytes to 128 Bytes)
Descriptor ring management hardware for Tx/Rx with optimized
descriptor fetching and write-back mechanisms
Mechanism for reducing interrupts from Tx/Rx operations
Integrated PHY for 10/100/1000 Mbps (full- and half-duplex)
IEEE 802.3 auto-negotiation support
IEEE 802.3 PHY compliance and compatibility
Built-in cable diagnostics and adjustments for cable faults
Host Offloading Features
Tx/Rx IP, TCP, and UDP checksum offloading (IPv4, IPv6)
Tx TCP segmentation (IPv4, IPv6)
Packet filtering including:
• 16 exact-matched packets (unicast or multicast)
• 4096-bit hash filter for multicast frames
• Promiscuous (unicast and multicast) transfer mode support
• Filtering of invalid frames
IEEE 802.1q* virtual local area network (VLAN) support with VLAN tag
insertion, stripping, and packet filtering for up to 4096 VLAN tags
Manageability Features
Two SMB ports, one with Fast Management Link capability
Alerting Standards Format 2.0
Advanced pass through
Preboot eXecution Environment (PXE) flash interface support
(32 bit and 64 bit)
Simple Network Management Protocol (SNMP) and Remote
Network Monitoring (RMON) statistic counters
SDG 3.0, Wired for Management (WfM) 3.0 and PC2001 compliant
Wake on LAN support
Benefits
• Bus sharing not required
• Low latency path to memory
• Supports dual-port Gigabit Ethernet at wire speed
• Provides PCI Express power management capabilities for PC and embedded applications
• Less congested board routing
• Low-latency data handling
• Superior direct memory access (DMA) transfer-rate performance
• Network packet handling without waiting or buffer overflow
• Efficient packet prioritization
• No external FIFO memory requirements
• FIFO size adjustable to application
• Error detection and correction for FIFO data
• Enables use of jumbo frames
• Frame loss reduced from receive overruns
• Hardware or software control over transmission of pause frames
• Efficient use of PCI Express bandwidth
• Efficient use of PCI Express bandwidth
• Simple software programming model
• Efficient use of system memory and PCI Express
• Maximizes system performance and throughput
• Smaller footprint, lower power dissipation compared to multi-chip MAC and PHY solutions
• Automatic link configuration for speed, duplex, flow control
• Robust operation over installed base of Category-5 twisted-pair cabling
• Improved end-user troubleshooting
• Tolerance of common wiring faults
• Lower processor utilization
• Increased throughput and lower processor utilization
• Compatible with large send offload (in Microsoft Windows* operating systems)
• Ability to use advanced packet filtering in software
• Lower processor utilization
• Ability to create multiple VLAN segments
• Allows packet routing to and from either LAN port and a Board Management Controller (BMC) such as IPMI
• Manageability data transfers up to 8 Mbps peak rate
• Standard alerting capability to notify IT of system events
• Filtering and redirection for management packets
• Support for serial text and keyboard redirection and remote floppy/CD
• Enables system boot up via the LAN
• Flash interface for PXE image
• Easy system monitoring with industry-standard consoles
• Remote network management through Desktop Management Interface (DMI) 2.0 and SNMP
• Packet recognition and wake-up for LAN on motherboard applications without software configuration