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.

5703-PB03-R

01/05/05

Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other

trademarks mentioned are the property of their respective owners.

The BCM5703 is a fully integrated 10/100/1000BASE-T Gigabit

Ethernet media access control and physical layer transceiver solution for

high performance network applications. The BCM5703 is a highly

integrated solution combining a triple-speed, IEEE 802.3 compliant

media access controller (MAC), PCI and PCI-X bus interfaces, an on-

chip buffer memory, and an integrated physical layer transceiver in a

single device. The BCM5703 is fabricated in a low-voltage, 0.13-

µm

CMOS process providing a low-power system solution. The BCM5703

provides a complete single-chip Gigabit Ethernet NIC or LOM solution.

The BCM5703 includes a 10/100/1000-Mbps Ethernet MAC with full/

half-duplex capability at all speeds and a 10/100/1000 copper PHY.

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 both PCI v2.2 and PCI-X v1.0 bus interfaces. The

BCM5703 provides a large on-chip buffer memory for stand-alone

operation. Dual on-chip high-performance processors enable 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 have been added to make the device even more user-

friendly. A link quality indicator LED gives installers an instant visual

indication of any issues with the wiring plant supporting operation at the

desired speed, 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 BCM5703 continually monitors various channel conditions. The

optional wirespeed capability allows the BCM5703 to force auto-

negotiation to be automatically limited by the speed that the channel can

reliably support (rather than by the performance of the end equipment).

Target Applications of the BCM5703

BCM5703 Software Support

• PXE 2.0

RX

TX

10/100/1000

PHY

10/100/1000

MAC

Dual Processor

PLL

LED Control

LED Signals

SMB Interface EEPROM Interface

SMBus

EEPROM

Control

32-KB

Memory

PLL

Buffer

Memory

PCI/PCI-X

PCI/PCI-X

Bus

PCI

Clk

BASE-T

BASE-T

BASE-T

BASE-T

BASE-SX

BASE-LX

Gigabit Ethernet Network Interface Cards (NICs)

and LAN-on Motherboard (LOM) applications for

servers and workstations.

Single Port

Network Interface Cards (NIC) designs

LAN on Motherboard (LOM) designs

Single Port

Dual Port

Dual Port

PCI 2.2 Adapters

PCI-X v1.0 Adapters

PCI 2.2 LOM

PCI-X v1.0 LOM

10/100/1000

10/100/1000

10/100/1000

10/100/1000

1000

1000

PCI 2.2 Adapters

PCI 2.2 Adapters

PCI 2.2 Adapters

PCI-X v1.0 Adapters

PCI-X v1.0 Adapters

PCI 2.2 LOM

PCI-X v1.0 LOM