series Marvell Avastar 88W8764 Integrated 4x4 MAC/Baseband/RF MIMO SoC Supports High Throughput Data Rates for Next Generation WLAN Products PRODUCT OVERVIEW The Marvell® Avastar™ 88W8764 is a highly integrated 4x4 wireless local area network (WLAN) system-on-chip (SoC), specifically designed to support high throughput data rates for next generation WLAN products and is part of the Marvell Avastar family of wireless devices. The device is designed to support IEEE 802.11n/a/g/b payload data rates. The Marvell Avastar 88W8764 provides the combined functions of Direct Sequence Spread Spectrum (DSSS), Orthogonal Frequency Division Multiplexing (OFDM), and Multiple Input, Multiple Output (MIMO) baseband modulation, Medium Access Controller (MAC), on-chip CPU, memory, host interfaces, and direct-conversion WLAN RF radio on a single integrated chip. The device supports 802.11n Beamformer and Beamformee functionality, enabling a simplified, integrated solution. When combined with other Marvell solutions, significant range and throughput performance can be achieved. For security, the 88W8764 supports 802.11i security standards through implementation of the Advanced Encryption Standard (AES)/Counter Mode CBC-MAC Protocol (CCMP), Wired Equivalent Privacy (WEP) with Temporal Key Integrity Protocol (TKIP), Advanced Encryption Standard (AES)/Cipher-Based Message Authentication Code (CMAC), and WLAN Authentication and Privacy Infrastructure (WAPI) security mechanisms. For video, voice, and multimedia applications, 802.11e Quality of Service (QoS) is supported. Also supported are 802.11h Dynamic Frequency Selection (DFS) for detecting radar pulses when operating in the 5 GHz band. The device is also equipped with a coexistence interface for external, co-located 2.4 GHz radios. The 88W8764 supports a PCI Express v1.1 interface and is available in a 231-pin (12x12) TFBGA package option. BLOCK DIAGRAM 88W8764 WLAN MAC / Baseband CPU / Memory JTAG CPU Interface Interrupts CPU C P U Boot ROM B U S Timers SRAM Encryption Direct- Conversion Radio T/R Switch Path A 2.2/5 GHz WLAN Tx/Rx T/R Switch Path B 2.4/5 GHz WLAN Tx/Rx T/R Switch Path C 2.4/5 GHz WLAN Tx/Rx T/R Switch Path D 2.4/5 GHz WLAN Tx/Rx 802.11 MAC Rx/Tx I N T E R N A L 802.11 Baseband (DSSS, OFDM, MIMO) WLAN RF 4x4 MIMO Coexistence Arbiter B U S 802.11n Beamform 802.11n Beamform (Gbus) Coexistence Interface (external, co-located 2.4 GHz radio) Common Analog DMA Peripheral Bus 3-Wire, 4-Wire Serial Serial EEPROM Clocked Serial Unit UART UART GPIO GPIO XTAL_IN Common Analog Unit Host Interface Bus XTAL_OUT Peripheral Bus Unit PCI Express PHY Fig 1. Avastar 88W8764 SoC Block Diagram PCIe series Marvell Avastar 88W8764 Integrated 4x4 MAC/Baseband/RF MIMO SoC SPECIFICATIONS APPLICATIONS WLAN MAC • Personal computer systems • Ad-Hoc and Infrastructure Modes • Wireless gateways, routers, and access points • RTS/CTS for operation under DCF • Wireless client cards and bridges • Hardware filtering of 64 multicast addresses and duplicate frame detection for up to 96 unicast addresses • Wireless home audio and video entertainment systems including TV, set-top boxes, media servers, and gaming platforms • On-chip Tx and Rx FIFO for maximum throughput • Open System and Shared Key Authentication services • A-MPDU Rx (de-aggregation) and Tx (aggregation) GENERAL FEATURES • Single-chip integration of 802.11n/a/g/b wireless baseband, MAC, radio, CPU, memory, and host interface • 4x4 MIMO operation • Low power dissipation • 40 MHz crystal clock support • 20/40 MHz channel coexistence • Reduced Inter-Frame Spacing (RIFS) receive • Management information base counters • Radio resource measurement counters • Block acknowledgement with 802.11 extension • Dynamic frequency selection • Beamforming - 802.11n Explicit Beamformer, supports NDP and Stagger sounding IEEE 802.11/STANDARDS • 802.11 data rates of 1 and 2 Mbps • 802.11b data rates of 5.5 and 11 Mbps • 802.11a/g data rates 6, 9, 12, 18, 24, 36, 48, and 54 Mbps for multimedia content transmission • 802.11n compliant • 802.11d operation in additional regulatory domains • 802.11e QoS block acknowledgement (with support for 802.11n extension) - 802.11n Explicit Beamformee, supports immediate feedback generation using uncompress and compress steering matrix or delayed feedback of all feedback types • 802.11v TIM frame transmission • Multiple-BSSID/Station operation • Transmit rate adaptation • Transmit power control • Long and short preamble generation on a frame-by-frame basis for 802.11b frames • 802.11h transmit power control • 802.11h DFS radar pulse detection • 802.11i enhanced security • 802.11k radio resource management • 802.11r fast hand-off for AP roaming • 802.11v TIM broadcast • 802.11w protected management frames • 802.11z tunneled direct link setup • Fully supports clients (stations) implementing IEEE Power Save mode WLAN BASEBAND • 802.11n 4x4 MIMO (on-chip Marvell MIMO RF radio) • Backward compatibility with legacy 802.11a/g/b technology • PHY data rates up to 450 Mbps • 20 MHz bandwidth/channel, 40 MHz bandwidth/channel, upper/lower 20 MHz bandwidth and duplicate legacy packet in 40 MHz channel mode operation • Modulation and Coding Scheme (MCS)—0~23 and 32 (duplicate 6 Mbps) • Enhanced radar detection for long and short pulse radar PACKAGING • Enhanced AGC scheme for DFS channels • 12 x 12 mm, 231-pin TFBGA • Japan DFS requirements for W53 and W56 • Radio resource measurement • Optional 802.11n MIMO features: PROCESSOR - 20/40 MHz coexistence • CPU - 1-stream STBC transmission and reception - Integrated ARM9E-S™ CPU with integrated memories and cache controller for Access Point applications • DMA - Independent 4-Channel Direct Memory Access (DMA) - Short guard interval - RIFS on receive path - Explicit beamformee and beamformer - Greenfield Tx/Rx • Enhanced receiver performance by channel smoothing • Power save features MEMORY • Internal Memory - Internal SRAM for Tx frame queues and Rx data buffers - Internal boot ROM series Marvell Avastar 88W8764 Integrated 4x4 MAC/Baseband/RF MIMO SoC SPECIFICATIONS WLAN RADIO • Integrated direct-conversion radio • 20 and 40 MHz channel bandwidths • WLAN Rx Path - Direct-conversion architecture eliminates need for external SAW filter - On-chip gain selectable LNAs with optimized noise figure and power consumption - High dynamic range AGC function in receive mode • WLAN Tx Path - Closed/open loop power control (0.5 dB increments) - Optimized Tx gain distribution for linearity and noise performance • WLAN Local Oscillator - Fractional-N for multiple reference clock support WLAN ENCRYPTION • WEP 64- and 128-bit encryption with hardware TKIP processing (WPA) • AES-CCMP hardware implementation as part of 802.11i security standard (WPA2) • Enhanced AES engine performance • AES-Cipher-Based Message Authentication Code (CMAC) as part of the 802.11w security standard • WLAN Authentication and Privacy Infrastructure (WAPI) • Dual AES-CCMP and WAPI engines, which support simultaneous operation COEXISTENCE • Coexistence interface for external, co-located 2.4 GHz radio - Marvell 3/4-wire interface - WL_ACTIVE 3/4-wire interface - WL_ACTIVE 2-wire interface HOST INTERFACES • PCI Express specification v1.1 PERIPHERAL BUS INTERFACES • Clocked Serial Unit (CSU) - 3-Wire, 4-Wire Serial Interface - SPI Serial EEPROM • 16550 Universal Asynchronous Receiver/Transmitter (UART) • General Purpose Input Output (GPIO) TEST • On-chip diagnostic information series Marvell Avastar 88W8764 Integrated 4x4 MAC/Baseband/RF MIMO SoC THE MARVELL ADVANTAGE: Marvell chipsets come with complete reference designs which include board layout designs, software, manufacturing diagnostic tools, documentation, and other items to assist customers with product evaluation and production. Marvell’s worldwide field application engineers collaborate closely with end customers to develop and deliver new leading-edge products for quick time-to-market. Marvell utilizes worldleading semiconductor foundry and packaging services to reliably deliver high-volume and low-cost total solutions. ABOUT MARVELL: Marvell is a leader in storage, communications, and consumer silicon solutions. Marvell’s diverse product portfolio includes switching, transceiver, communications controller, processor, wireless, power management, and storage solutions that power the entire communications infrastructure, including enterprise, metro, home, storage, and digital entertainment solutions. For more information, visit our Web site at www.marvell.com. Marvell Semiconductor, Inc. 5488 Marvell Lane Santa Clara, CA 95054 Phone 408.222.2500 www.marvell.com Copyright © 2011. Marvell International Ltd. All rights reserved. Marvell, Moving Forward Faster, and the Marvell logo are registered trademarks of Marvell or its affiliates. Avastar is a trademark of Marvell or its affiliate. All other trademarks are the property of their respective owners. Avastar_88W8764-01 1/11