82551QM Intel Corporation, 82551QM Datasheet

82551QM

Manufacturer Part Number

82551QM

Description

Ethernet, Fast Ethernet Multifunction PCI/Card Bus Controller, 196 Pin, BGA

Manufacturer

Intel Corporation

Datasheet

1.82551QM.pdf (2 pages)

Specifications of 82551QM

Case

BGA

07+/03+

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The Intelligent Way to Connect

Product Description

The Intel

8255x controllers. The 82551QM provides excellent performance with offloading of TCP, UDP and IP

checksums, plus support for TCP segmentation offload for operations such as Large Send.

The 82551QM, with optimized 32-bit interface and efficient scatter-gather bus mastering capabilities,

enables the controller to perform high-speed data transfers over the PCI bus or CardBus. These

capabilities accelerate the processing of high-level commands and operations, lowering CPU utilization.

The device’s architecture enables efficient data flow from the bus interface unit to the 3KB transmit and

receive FIFOs, providing the perfect balance between the wire and system bus. In addition, multiple

priority queues augment Quality of Service (QoS) performance.

The 82551QM integrates advanced manageability features into one component. It includes support for

Alert on LAN* 2 and Alerting Standards Format (ASF) bi-directional alerting. A System Management

Bus (SMB) interface can be used with bus management controllers. Both legacy and ASF sensor

polling are supported, as well as remote-control capabilities. The 82551QM embeds the Universal NIC

Driver Interface (UNDI) code, allowing it to support Pre-boot Execution Environment (PXE) without

the use of an additional external ROM.

The 82551QM is pin-compatible with the Intel

is layout-compatible with Intel

Applications

The Intel 82551QM Fast Ethernet Multifunction PCI/CardBus Controller is designed for use in the

following applications:

Intel

Fast Ethernet Multifunction

PCI/CardBus Controller

Advanced, integrated functions for high-performance

PCI/CardBus Ethernet applications

Product Brief

Advanced offloading features speed data transfers

Enhanced manageability and system monitoring

Footprint compatibility for flexible designs

LAN on Motherboard (LOM) implementations

PCI Mezzanine cards

Industrial PCs and single-board computers

Embedded applications

82551QM Fast Ethernet Multifunction PCI/CardBus Controller expands the family of Intel

82551QM

82540 Gigabit Ethernet controller.

82550 and Intel

82559 Fast Ethernet controllers, and it

Related parts for 82551QM

82551QM Summary of contents

Page 1

... Alert on LAN* 2 and Alerting Standards Format (ASF) bi-directional alerting. A System Management Bus (SMB) interface can be used with bus management controllers. Both legacy and ASF sensor polling are supported, as well as remote-control capabilities. The 82551QM embeds the Universal NIC Driver Interface (UNDI) code, allowing it to support Pre-boot Execution Environment (PXE) without the use of an additional external ROM ...

Page 2

... Intel may make changes to specifications and product descriptions at any time, without notice. * Other names and brands may be claimed as the property of others. Intel is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other countries. © Intel Corporation 2002. All rights reserved. ...

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