Gateway
Solutions
Link Street
™
Integrated Gateway Router
with Multi-Port QoS Switch
88E6218
The Marvell
¨
Link Street
ª
family of highly integrated gateway router devices provides a superior level of
functionality and performance for residential gateway applications. The Link Street 88E6218 device is an
advanced single-chip gateway router device integrating a high-performance CPU for wire-speed routing,
an advanced switching fabric with Quality of Service (QoS) support, Þve integrated Fast Ethernet (FE) PHYs,
one MII port, a UART for debugging and modem backup, and advanced Virtual Cable Tester
ª
(VCT) cable
diagnostics. The 88E6218 device is an ideal solution for residential gateway applications.
SMI
PRODUCT OVERVIEW
SDRAM
Flash
Memory
DSP
Enhanced 88E6052 Switch with Four Priorty QoS + MACs + SRAM
SDRAM & Flash
Interface
Internal Interconnect Controller
Data SRAM 8KB
Tightly Coupled
I-Cache
D-Cache
ARM-9E uP
Timers &
Interrupts
802.3
UniMAC
ª
Queue
Controller
SRAM 1 Mb
Packet Buffer
& MAC Address
SMI
MII
200 Mbps
MII/SNI
FE PHY
Port 0
Cu or Fiber
FE PHY
Port 1
FE PHY
Port 2
FE PHY
Port 3
FE PHY
Port 4
MII/SNI
200 Mbps
10/100
10/100
JTAG Interface
10/100
10/100
10/100
UART
UART Interface
MAC Address
Look-up
GPIO/
LEDs
Serial
Control
4-wire Interface
Serial
EEPROM
Figure 1. Link Street 88E6218 Internal Block Diagram
FEATURES
¥
Single-chip integration of a high-performance CPU, multi-port
switch with PHYs, peripheral I/O ports and VCT technology
¥
ARM-9E CPU at up to 150 MHz clock frequency
¥
Five integrated FE PHY ports and one MII port
Ð Auto-MDI/MDIX crossover for 100BASE-TX and 10BASE-T ports
Ð One FE PHY port can be conÞgured for copper (100BASE-TX or
10BASE-T) or Þber (100BASE-FX) connections
Ð MII Interface supports both MAC Mode (Forward MII) or PHY Mode
(Reverse MII), 7-wire SNI, or Reduced MII (RMII)
¥
Virtual Cable Tester (VCT) technology
BENEFITS
¥
Provides a low-cost and full-featured solution for Small
OfÞce/Home OfÞce (SOHO) routers
¥
High-performance CPU with optimized internal caches for
wire-speed routing throughput
Ð SimpliÞes and reduces cost of networking installation and reduces
costly phone calls to equipment manufacturersÕ support centers
Ð Supports both copper and Þber connections with the integrated
Marvell Alaska
¨
digital PHY technology for market-leading network reach
Ð Provides design ßexibility for connections to CPUs or external PHYs
¥
Advanced cable integrity diagnostics helps customers determine
location of cable opens, shorts and impedance mismatch
¥
Reduces costly phone calls to equipment manufacturersÕ support centers
Link Street
™
Integrated Gateway Router
FEATURES
BENEFITS
¥
UART port
¥
High-speed switch fabric with QoS support
Ð High-performance lookup engine with support for up to
2,048 MAC address entries with automatic learning and aging
Ð Four priority queues supporting IEEE 802.1p, IPv4 Type of
Service (ToS) and Differentiated Service (DiffServ), and
IPv6 TrafÞc Class priority assignments
Ð Port-based VLANs supported in any combination
¥
CMOS low power dissipation PAVE = Less than 1.5W
APPLICATIONS
¥
UART port can be used for console management or for WAN link
backup via an external modem
¥
Provides true non-blocking switching performance
Ð Supports a large number of Ethernet nodes
Ð Ideal for supporting prioritized packet streams for time critical
and multimedia trafÞc
Ð Supports port based VLAN to allow suppression or addition of
VLAN group membership to provide ßexible management by
IT managers
¥
Eliminates expensive heat sinks or fans and permits the use of
low-cost and small enclosures
The Link Street family of products provides industry-leading functionality for advanced gateway routers. The Link Street 88E6218
deviceÕs higher integration allows OEM and ODMs to deliver strong SOHO networking features and performance at entry-level
prices in a small footprint. The ßexibility of the 88E6218 device comes from its conÞguration options and integration. The device
integrates a high-performance CPU for wire-speed routing of network packets. Figure 2 shows the 88E6218 device in a residential
gateway router application.
DSL/Cable
Modem
WAN/LAN
Cu/Fiber 10/100
SDRAM
Flash
Memory
DSP
Serial
EEPROM
UART
Serial Port
EEPROM
Interface
UART
MII
Memory
Controllers
PHY
FE PHY
Gateway/Router + Switch
(88E6218)
FE PHY
FE PHY
FE PHY
FE PHY
Workstation
PC
IP Telephone
Laptop Computer
Figure 2. Link Street 88E6218 Gateway Router System Block Diagram
MarvellÕs worldwide Þeld applications engineers collaborate closely with network equipment vendors to
develop and deliver new competitive products to market on time. All Marvell products, including the Link Street 88E6218 integrated gateway
router, are supported by a complete set of hardware and software tools to assist network hardware engineers with product evaluation.
THE MARVELL ADVANTAGE:
For more information, visit our website at www.marvell.com.
Marvell Semiconductor, Inc.
700 First Avenue
Sunnyvale, CA 94089
Phone 408.222.2500
www.marvell.com
Copyright © 2003. Marvell. All rights reserved. Marvell, the Marvell logo, Moving Forward
Faster, Alaska, and GalNet are registered trademarks of Marvell. Discovery, Fastwriter, GalTis,
Horizon, Libertas, Link Street, NetGX, PHY Advantage, Prestera, Raising The Technology Bar,
UniMAC, Virtual Cable Tester, and Yukon are trademarks of Marvell. All other trademarks are
the property of their respective owners.
88E6218-001 01/03
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