LU82551QM

Introduction

The Intel® 82541(PI/GI/EI) Gigabit Ethernet is a single, compact component with an integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions. For desktop, workstation and mobile PC Network designs with critical space constraints, the Intel® 82541(PI/GI/EI) allows for a Gigabit Ethernet implementation in a very small area that is footprint compatible with current generation 10/100 Mbps Fast Ethernet designs.

Product Features

■ PCI Bus
— PCI revision 2.3, 32-bit, 33/66 MHz
— Algorithms that optimally use advanced PCI MWI, MRM, and MRL commands
— CLK_RUN# signal
— 3.3 V (5 V tolerant PCI signaling)
■ MAC Specific
— Low-latency transmit and receive queues
— IEEE 802.3x-compliant flow-control support with software-controllable thresholds
— Caches up to 64 packet descriptors in a single burst
— Programmable host memory receive buffers (256 B to 16 KB) and cache line size (16 B to 256 B)
— Wide, optimized internal data path architecture
— 64 KB configurable Transmit and Receive FIFO buffers
■ PHY Specific
— Integrated for 10/100/1000 Mb/s full- and half-duplex operation
— IEEE 802.3ab Auto-Negotiation and PHY compliance and compatibility
— State-of-the-art DSP architecture implements digital adaptive equalization, echo and cross talk cancellation
— Automatic polarity detection
— Automatic detection of cable lengths and MDI vs. MDI-X cable at all speeds
■ Host Off-Loading
— Transmit and receive IP, TCP, and UDP checksum off-loading capabilities
— Transmit TCP segmentation and advanced packed filtering
— IEEE 802.1Q VLAN tag insertion and stripping and packet filtering for up to 4096 VLAN tags
— Jumbo frame support up to 16 KB
— Intelligent Interrupt generation (multiple packets per interrupt)
■ Manageability
— On-chip SMBus 2.0 port
— ASF 1.0 and 2.0
— Compliance with PCI Power Management v1.1/ACPI v2.0
— Wake on LAN* (WoL) support
— Smart Power Down mode when no signal is detected on the wire
— Power Save mode switches link speed from 1000 Mb/s down to 10 or 100 Mb/s when on battery power
■ Additional Device
— Four programmable LED outputs
— On-chip power regulator control circuitry
— BIOS LAN Disable pin
— JTAG (IEEE 1149.1) Test Access Port built in silicon (3.3 V, 5 V tolerant PCI signaling)