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Introduction

The Intel? 82541ER Gigabit Ethernet is a single, compact component with an integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions. For embedded communication and network devices such as web kiosks, and Point-of-Sale terminal designs with critical space constraints, the Intel 82541ER 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

— 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 operation

— IEEE 802.3ab Auto-Negotiation support

— IEEE 802.3ab PHY compliance and compatibility

— State-of-the-art DSP architecture implements digital adaptive equalization, echo cancellation, 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

— Advanced packed filtering

— Jumbo frame support up to 16 KB

— Intelligent Interrupt generation (multiple packets per interrupt)

■ Manageabiltiy

— Network Device Class Power Management Specification 1.1

— Compliance with PCI Power Management 1.1 and ACPI 2.0

— SNMP and RMON statistic counters

— D0 and D3 power states

■ Additional Device

— Four programmable LED outputs

— On-chip power control circuitry

— BIOS LAN Disable pin

— JTAG (IEEE 1149.1) Test Access Port built in silicon (3.3 V, 5 V tolerant PCI signaling)

■ Lead-freea 196-pin Ball Grid Array (BGA). Devices that are lead-free are marked with a circled “e1” and have the product code: LUxxxxxx.