Trademarks

TM

Vitesse, ASIC-Friendly, FibreTimer, TimeStream, Snoop Loop, Super FEC, FOCUSConnect, Meigs-II, Meigs-IIe, Lansing, Campbell-I, Barrington,

PaceMaker, HOVCAT48, HOVCAT48e, HOVCAT192, HOVCAT192e, Micro PHY, FOCUS32, FOCUS16, IQ2200, NexSAS, VersaCAT, GigaStream, HawX,

SparX, StaX, VstaX, SimpliPHY,VeriPHY, ActiPHY, XFP PRO, SFP PRO, Smart-LINK, OctalMAC, EQ Technology are trademarks in the United States and/or

other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective

holders.

Copyright © 2005

Vitesse Semiconductor Corporation ("Vitesse") retains the right to make changes to its products or specifications to improve performance, reliability or

manufacturability. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is

subject to change without notice at any time. While the information furnished herein is held to be accurate and reliable, no responsibility will be assumed by

Vitesse for its use. Furthermore, the information contained herein does not convey to the purchaser of microelectronic devices any license under the patent

right of any manufacturer.

741 Calle Plano

Camarillo, CA 93012, USA

Tel: +1 805.388.3700

Fax: +1 805.987.5896

www.vitesse.com

sales@vitesse.com

VSC7398

Analyzer/Arbiter

8051 CPU (V-Core CPU)

RS232 Interface

Serial Interface

Parallel Interface

MII Management

Interface

Control and Status

Registers

GPIO

SI

PI or

V-Core CPU

RAM/Flash

Frame Bus

...

Six Copper Interfaces

Tri-Speed

Copper PHY

Tri-Speed MAC

Categorizer

Rewriter

Shared Rx and

Tx FIFO

Scheduler

Tri-Speed

Copper PHY

Tri-Speed MAC

Categorizer

Rewriter

Shared Rx and

Tx FIFO

Scheduler

Two Copper or

(R)GMII Interfaces

Tri-Speed MAC

Tri-Speed

Copper PHY

Categorizer

Rewriter

Shared Rx and

Tx FIFO

Scheduler

MIIM

RS232

05

6

7

Multiplexer

Tri-Speed MAC

Tri-Speed

Copper PHY

Categorizer

Rewriter

Shared Rx and

Tx FIFO

Scheduler

Multiplexer

GENERAL DESCRIPTION:

SPECIFICA TIONS:

A Vitesse Switch Family Member

Web-managed Switches, taking the family into a new generation of

integration. With its eight integrated tri-speed Gigabit Ethernet copper

transceivers (with the option of multiplexing two as tri-speed RGMII/GMII),

and several integrated management interfaces, it is specifically targeted at

SMB and SOHO unmanaged applications; with its V-Core CPU (on-chip

8051) and parallel CPU interface, it enables Web-managed and managed

switch applications.

Being a member of the switch family provides a number of unique

advantages when designing with the chip: there is nearly 100% software

compatibility between the switch family members; software written for

SparX-G8e can easily be used with other switch configurations in the

family, and vice-versa; and with minimal effort and time, designs can be

upgraded to higher port counts, or migrated to other configurations or

future technology. Building a product family is easy when designing with

Vitesse switches!

SparX-G8e shares the unique traits of the Vitesse SparX Family Of

Switches. The highly integrated switch supports 136 kilobytes of on-chip

frame buffer, and the integration of the copper PHY

as well as an internal oscillator circuit simplifies PCB

layout to reduce time and cost. Further trimming

down system cost is the industry's lowest power, fully

integrated, Switch-plus-Copper PHY technology.

The switches provide for high performance designs

with their nonblocking, wire-speed performance,

which includes wire-speed MAC address learning.

Designing both unmanaged and Web-managed solutions is

straightforward. The chips offer an internal V-Core CPU (on-chip 8051)

and serial and parallel CPU interfaces, and support a host of management

protocols such as GxRP, SNMP, and three flavors of Spanning Tree:

Standard STP, Multiple STP, and Rapid STP.

Controlling networks operated by the Vitesse switches is simple; advanced

classification with IPv4 and IPv6 support, along with port DSCP remarking

and 802.1X authentication support, provides flexible QoS operation. This

is backed up by Layer 2-4 link aggregation and VLAN support, enabling

managed switches to be deployed.

With its unique low power dissipation, the VSC7398 enables fanless

operation, thereby providing higher system reliability and lower noise, both

to the benefit of the user.

Designing with Vitesse SparX Family Of Switches means designing with

the complete Vitesse solution: Vitesse provides a comprehensive, Web-

managed switch software system for the V-Core CPU (internal 8051). This

is in addition to the unmanaged and smart managed software systems for

8051, which are also included. For homegrown software development, the

Vitesse full platform and OS independent switch API is supplied.

Accompanying the software systems are the Vitesse Switch reference

systems. These are production-ready hardware designs that also serve as

evaluation platforms. The Vitesse solution is supplied with a

comprehensive collateral package, including software source code, full

documentation, and an in-depth qualification report for easy pre-

evaluation.

VSC7398 SparX-G8e is the highly integrated, single-

chip Gigabit Ethernet switch with 8 Integrated GbE

Family of Switches, SparX-G8e delivers high

performance with easy migration paths, and

comprehensive system solutions that enable ultra-

short time-to-market and market-leading system cost.

25 MHz LVTTL reference clock

1.2 V core power supply

3.3 V interface power supply

VSC7398