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Gateway Solutions
Link StreetTM
Integrated Gateway Router with Multi-Port QoS Switch
88E6218
The Marvell Link Street 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, ve integrated Fast Ethernet (FE) PHYs, one MII port, a UART for debugging and modem backup, and advanced Virtual Cable Tester (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 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 Auto-MDI/MDIX crossover for 100BASE-TX and 10BASE-T ports One FE PHY port can be congured for copper (100BASE-TX or 10BASE-T) or ber (100BASE-FX) connections 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 Ofce/Home Ofce (SOHO) routers High-performance CPU with optimized internal caches for wire-speed routing throughput Simplies and reduces cost of networking installation and reduces costly phone calls to equipment manufacturersO support centers Supports both copper and ber connections with the integrated Marvell Alaska digital PHY technology for market-leading network reach Provides design exibility 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 manufacturersO support centers
Link StreetTM Integrated Gateway Router
FEATURES BENEFITS
UART port High-speed switch fabric with QoS support High-performance lookup engine with support for up to 2,048 MAC address entries with automatic learning and aging Four priority queues supporting IEEE 802.1p, IPv4 Type of Service (ToS) and Differentiated Service (DiffServ), and IPv6 Trafc Class priority assignments 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 Supports a large number of Ethernet nodes Ideal for supporting prioritized packet streams for time critical and multimedia trafc Supports port based VLAN to allow suppression or addition of VLAN group membership to provide exible 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 deviceOs higher integration allows OEM and ODMs to deliver strong SOHO networking features and performance at entry-level prices in a small footprint. The exibility of the 88E6218 device comes from its conguration 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 MarvellOs worldwide eld 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 (c) 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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