O V ERVI EW

®

Phone: 949-450-8700

Fax: 949-450-8710

E-mail: info@broadcom.com

Web: www.broadcom.com

BROADCOM CORPORATION

16215 Alton Parkway, P.O. Box 57013

Irvine, California 92619-7013

© 2005 by BROADCOM CORPORATION. All rights reserved.

5705M-PB03-R

01/05/05

or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the

property of their respective owners.

The BCM5705M is a fully integrated 10/100/1000BASE-T Gigabit

Ethernet media access control and physical layer transceiver solution for

high-performance network applications. The BCM5705M combines a

triple-speed, IEEE 802.3-compliant media access controller (MAC), PCI

bus interface, on-chip buffer memory, and integrated physical layer

transceiver in a single device. It is fabricated in a low-voltage 0.13-mm

CMOS process, providing an ultra-low power solution. By itself the

BCM5705M provides a complete single-chip Gigabit Ethernet NIC or

LOM solution.

The BCM5705M includes a 10/100/1000-Mbps Ethernet MAC with full/

half-duplex capability at all speeds. Support for the following 802.3

functions is featured in the MAC: VLAN tagging, layer 2 priority

encoding, link aggregation, and full-duplex flow control.

The device provides three host interfaces for mobile applications: PCI

v2.2, MiniPCI, and Cardbus. Also integrated is an on-chip memory

buffer for stand-alone operation. An embedded high-performance

processor enables custom frame processing features, including TCP

segmentation.

The transceiver is fully compatible with the IEEE 802.3 standard for

auto-negotiation of speed. Additionally, several Plug and Play

enhancements are included to make the device even more user-friendly.

A unique integrated cable analyzer feature allows an end user to self-

diagnose any issues with the network cabling that could be affecting the

host machine. A link quality indicator LED and a GUI application give

installers an instant visual indication of a problem, which include

physical wiring defects or channel conditions, such as excessive cable

length, return loss, crosstalk, echo, and noise. Broadcom’s remote cable

management and diagnostics software can be used with the device to

provide remote management of the cable and a first level of diagnostics

and fault isolation.

The BCM5705M is also optimized to extend battery life. Several power

management enhancements are included that allow minimum usage of

battery power.

Target applications of the BCM5705M

• Mobile PC NIC

• Mobile PC LOM

Software drivers available

RX

TX

25 MHz

10/100/1000

PHY

10/100/1000

MAC

Processor

PLL

LED Control

LED Signals

SMB Interface EEPROM Interface

SMBus

EEPROM

Control

Memory

PLL

Buffer

Memory

PCI

PCI

Bus

PCI

Clk