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| CS22270 PRODUCT BULLETIN Wireless Multi-Link Controller CS22270 Features PROTOCOL SUPPORT Cirrus WhitecapTM2 s Wi-Fi (802.11b) s Multimedia and QoS ON-CHIP SYSTEM Processor Complex s 77 MHz ARM7TDMI RISC processor core s 4 KB integrated L1 cache Optimized Data Flow s DMA Control Blocks for each external interface Memory Controllers s 16-bit 100MHz SDRAM/FLASH memory interface s 16 MB addressable memory space Integrated PLL s Single crystal oscillator system design Forward Error Correction (FEC) s High-performance Reed-Solomon codec s Wire-like bit error rate performance for wireless transfers (10-11 BER performance for typical 10-5 BER environment) s Compliant with ADSL standards Power Management s ACPI host compliant s Four power saving modes s Programmable sleep timer SYSTEM INTERFACES High Speed Digital Radio MAC Interface s Glueless direct interface to 802.11b baseband processor s Three power management levels for radio control Bridging Interfaces s MII or 7-Pin serial Ethernet interface (AUI/twisted pair) High Speed Parallel Interface s High speed parallel bus s 32-Bit multiplexed address/data s Two independent DMA channels Host Bus Interfaces s PCI 2.1 and 2.2 compliant s Mini PCI 1.0 Compliant s PCMCIA 2.1 Compliant s USB 1.1 Compliant Device Reserved I/O s Network status indicators s I/O registers for custom applications Package/Technology s 1.8 V Core, 3.3 V I/O s 0.20 micron CMOS process s Packaging Type: 256 PBGA The Cirrus CS22270 Wireless Multi-Link Controller incorporates the IEEE 802.11b media access controller (MAC) to enable Wi-Fi compliant wireless network devices providing industry-wide interoperability. In addition, the CS22270 supports our multimedia and quality of service (QoS) extensions to distribute entertainment content wirelessly throughout the home network - with unparalleled performance. Extending The Broadband Experience The Cirrus CS22270 is the industry's first broadband wireless network controller to deliver wired and wireless home networking that effectively delivers entertainment content. It is a highly integrated, single chip device containing a high performance ARM complex processor and several industry standard system and network connectivity interfaces. It enables standalone or embedded home networking devices. This programmable architecture enables a firmware upgrade path to new features and to track changes in standards specifications. The CS22270 delivers an optimal level of flexibility in cost, functionality, and performance for such products. For more information, visit us at www.cirrus.com CS22270 Multiple LAN and System Interfaces The Cirrus CS22270 offers on-chip interfaces for USB, PCI, MII, 10/100BT Ethernet, and high speed digital 802.11b wireless radio. A high speed parallel interface provides a 32-bit interface to connect to other networking devices and codecs designed into the digital set-top box or residential gateway, for example. Industry standard host and networking interfaces ensure a glueless and cost-effective architecture that is interoperable with other home networking products and systems. devices within the home. This solution also provides flexibility of content distribution through multiple LAN subnets within the home, such as wireless, phoneline, and Ethernet. CS22270 enables a wide range of product configurations for gateway-like products - ranging from wireless Ethernet bridges to integrated platforms with WAN-to-Multi-LAN routing and other advanced features. Typical application platforms enabled by the Cirrus CS22270 include: Wireless bridging and routing (xDSL/cable modems, cable set-tops, fixed wireless hubs) s Broadband residential gateways s Home networking bridges (Ethernet, HPNA, USB) s Lower Cost Devices The net result of the CS22270's integration of system services functions and multiple LAN interfaces is an overall decrease in total system cost, board space, and power consumption for home networking products. Related Products Cirrus CS22210 Wireless PCI/USB Controller Cirrus CS22220 Wireless PCMCIA Controller s Cirrus CS22230 Wireless Mini PCI Controller s Cirrus CS22250 Wireless 10BT Controller s Cirrus WhitecapTM2 Network Protocol s Cresta3 Radio Design s s Applications Cirrus CS22270-based broadband devices allow distribution of entertainment content and services from the digital set-top box or residential gateway to other Cirrus Logic, Inc. Corporate Headquarters 4210 S. Industrial Drive Austin, TX 78744 USA T (512) 445-7222 T (800) 888-5016 F (512) 912-3977 www.cirrus.com DISTRIBUTORS Insight Electronics 9980 Huennekens San Diego, CA 92121 USA T (800) 677-6011 F (858) 450-8550 www.insight-electronics.com Nu Horizons 70 Maxess Road Melville, NY 11747 USA T (631) 396-5000 F (631) 396-5060 www.nuhorizons.com Asia, Europe, and Japan: Please access our website, www.cirrus.com, for your nearest local distributor. Cirrus Logic, Inc. Wireless Networking Division 5175 Hillsdale Circle El Dorado Hills, CA 95762 USA T (916) 939-9400 F (916) 939-9437 WORLDWIDE SALES Japan Cirrus Logic K.K. Aioi Sonpo, bldg 6F 5-6 Niban-cho, Chiyoda-ku Tokyo, 160 Japan T 81-3-5226-7390 F 81-3-5226-7677 Asia Cirrus Logic Intl. Ltd. 20F., Ocean Building 80 Shanghai Street Kowloon, Hong Kong, China T 852-2376-0801 T 852-2314-9920 F 852-2375-1202 Europe Cirrus Logic UK 4-5 Anglers Court 33-44 Spittal Street Marlow, Bucks SL71DB England T 44-0-1628-472-211 F 44-0-1628-486-114 For more information, visit us at www.cirrus.com (c) 2001, Cirrus Logic, Inc. All rights reserved. Cirrus, Cirrus Logic, Crystal and Maverick are registered trademarks of Cirrus Logic, Inc. Whitecap is a trademark of Cirrus Logic, Inc. DS559PB1 |
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