ETHERNET PRODUCTS
VSC7303
Stapleford™ - 24-port Gigabit Ethernet Switch-on-a-Chip
TRI-SPEED DESKTOP SWITCH:
CPU
or
Ctrl
4-wire Serial or
8/16-bit Parallel
Interface
Stapleford
VSC7303
RGMII
Quad
PHY
Quad
PHY
Quad
PHY
Quad
PHY
Quad
PHY
Quad
PHY
F E AT U R E S :
24 Gigabit Ethernet Ports with Non-blocking Wire-speed Performance
Tri-speed (10/100/1000 Mb/s) Operation Via RGMII or RTBI Interfaces
400 KB On-chip Frame Buffer
8/16-bit CPU Interface, and 4-wire Serial CPU Interface
Jumbo Frame Support
Programmable Classifier for QoS (Layer 2-4), Including
IEEE Std 802.1p™
8K MAC Addresses and 4K VLANs (IEEE
Std 802.1Q™)
Full Duplex Flow Control (IEEE
Std 802.3x™)
and Half Duplex Back
Pressure
Multicast and Broadcast Storm Control
Flexible Link Aggregation Compliant to
IEEE Std 802.3ad™
Spanning Tree Protocol Support (IEEE
Std 802.1D™)
Rapid Spanning
Tree (IEEE
Std 802.3W™)
Multiple Spanning Tree (IEEE
Std 802.3s™)
Port Based Access Control (IEEE
Std 802.1X™)
OAM Support (IEEE
Std 802.3ah™)
BENEFITS:
Ensures Maximum Data Throughput on Even Highly Loaded Networks
Simplifies PCB Layout Significantly by Utilizing Reduced Mode Interface
Standards for All Speeds
Eliminates the Need for External Buffer Memory While Maintaining High
Peak Load Performance
Enables Advanced Switch Management Using Run-time Protocols, in
Addition to Low Cost Unmanaged and Web Managed Operation
Connects Effortlessly to Networks, Hosts, and Controllers that Utilize up
to 12K Sized Jumbo Frames
Optimizes Network Performance to Support any Digital Stream, from
Internet Browsing to VoIP and Video
Stores a Large Amount of Stations at Wire Speed in the On-chip MAC
Table, Ensuring Optimal Network Performance
Ensures Loss-less Data Transmission While Supporting Existing Legacy
Ethernet Equipment
Secures the Network from Congestion by Unwanted Loops
Provides High Bandwidth Uplinking Abilities
Supports Complex Network Topologies with Fast Failure Recovery, as
Well as Legacy Networks
Enables Extra Network Security and Database Controlled Network Access
Stapleford-based Switch Products are Easily Designed for Ethernet in the
First Mile (EFM)
A P P L I C AT I O N S :
Tri-speed Desktop Switch
Backplane Controller
Tri-speed Access/Aggregation Switch
Control Plane Controller
PB-VSC7303-001
VSC7303
Stapleford™ - 24-port Gigabit Ethernet Switch-on-a-Chip
GENERAL DESCRIPTION:
Stapleford™ is a highly integrated, single-
chip Ethernet switch with 24 non-blocking
ports. High performance with easy migration
paths and comprehensive System Solutions
enableing ultra-short time-to-market and
market leading system cost.
A Vitesse Switch Family Member
Stapleford is a part of the Vitesse London Family Of Switches.
With its high port density of 24 tri-speed ports, it is specifically
targeted at desktop and medium business applications.
Being a member of the switch family provides a number of
unique advantages when designing with the chip, including
nearly 100% software compatibility between members. Thus,
software written for Stapleford can easily be used with other
switch configurations in the family, and vice-versa.
Additionally, building a product family is easy when designing
with Vitesse switches. Migrating designs to other port counts
or other configurations, or to future technology, is achievable
with minimum effort and time.
The Vitesse London Switch Family
Stapleford, as part of the Vitesse London Family Of Switches,
shares the unique traits of the family.
The highly integrated switches require no external memory at
all, and the use of Reduced Mode interfaces (RGMII and
RTBI) simplifies PCB layout to reduce time and cost. Further
trimming down system cost is the persistently low power
dissipation of the family.
The switches provide for high performance designs with their
non-blocking, wire-speed performance, which includes wire-
speed MAC address learning.
Tx
FIFO
Rx
FIFO
Designing both unmanaged and managed solutions is
straightforward. The chips offer both 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.
Gaining control with networks operated by the Vitesse switches is
simple; advanced Layer 2-4 classification, plus shaping and
policing functionality, along with port authentication support,
provide flexible QoS operation. This is backed up by link
aggregation and VLAN support, enabling advanced techniques
such as “802.1Q-in-802.1Q” to be deployed. Additionally, OAM is
supported for designing switch products for Ethernet in the MAN.
Designing with Vitesse London Family Of Switches means
designing with the whole Vitesse Solution:
The outstanding Vitesse web managed switch software system
that runs on a standard 8051 controller, is provided. This is in
addition to the unmanaged and smart managed software systems
for 8051, which are also included. For homegrown software
development our full 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 for our switches.
The Vitesse Solution is supplied with a comprehensive collateral
package, which includes software source code, full documentation,
and an in-depth qualification report for easy pre-evaluation.
BLOCK DIAGRAM:
Data Bus
Rx
FIFO
Tx
FIFO
S P E C I F I C AT I O N S :
25 MHz LVTTL reference clock
1.8 V core power supply
2.5 and 3.3 V interface power supply
Port Block
Analyzer/Arbiter
Policer
Shaper
Port Block
Policer
g
Shaper
MIIM
Cate-
gorizer
0 to
23
Cate-
gorizer
10/100/1000
MAC
10/100/1000
MAC
CPU Interfaces
MII Management
Interface
Control/Status
Registers
SI
RGMII/RTBI
PI
Heathrow-II_Block_Diagram
680-pin TSBGA package
For more information on Vitesse Products visit the Vitesse web site
at www.vitesse.com or contact Vitesse Sales at (800) VITESSE
or sales@vitesse.com
741 Calle Plano
Camarillo, CA 93012, USA
Tel: +1 805.388.3700
Fax: +1 805.987.5896
www.vitesse.com
©2003 Vitesse Semiconductor Corporation
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