series Marvell Avastar 88W8766U Integrated WLAN/Bluetooth Single-Chip SoC Supports SDIO and USB 2.0 Interfaces for Connecting to the Host Processor PRODUCT OVERVIEW The Marvell® Avastar™ 88W8766U is a highly integrated wireless local area network (WLAN) system-on-chip (SoC), specifically designed to support high throughput data rates for next generation WLAN products. The device is designed to support IEEE 802.11a/g/b and 802.11n payload data rates. The device also supports Bluetooth 4.0+High Speed (HS) and Bluetooth Low Energy (BLE). The device provides the combined functions of Direct Sequence Spread Spectrum (DSSS) and Orthogonal Frequency Division Multiplexing (OFDM) baseband modulation, Medium Access Controller (MAC), CPU, memory, host interfaces, and direct-conversion WLAN RF radio with integrated 2.4 GHz PA and T/R switch on a single chip. For security, the 88W8766U 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 range. The 88W8766U supports SDIO and USB 2.0 interfaces for connecting WLAN and Bluetooth activity to the host processor. The device is available in a QFN package. BLOCK DIAGRAM Direct Conversion RF WLAN MAC / Baseband Processor Encryption c JTAG Interface Feroceon CPU SRAM/ ROM C P U JTAG 802.11 . MAC SRAM Bluetooth T/R Switch 802.11 Baseband (DSSS /OFDM ) B U S WLAN RF T/R Switch LNA Interface Bluetooth/BLE Baseband Timers/ Interrupts Power Management Power Management Power Down Switcher/ LDO Switcher I N T E R N A L B U S 5 GHz WLAN Tx/Rx LNA PA Coexistence Arbiter CPU (optional) PA PA 2.4 GHz WLAN Tx/Rx Shared LNA Bluetooth RF Bluetooth Tx/Rx Common Analog XTAL_IN DMA Common Analog Unit XTAL_OUT Peripheral Bus 3-Wire, 4-Wire Interface 2-Wire Serial Interface 1-Wire Serial Interface SPI Serial EEPROM Host Interfaces Clocked Serial Unit UART UART GPIO GPIO/LED SDIO B U S SDIO Peripheral Bus Unit USB 2.0 OTP Fig 1. Avastar 88W8766U SoC Block Diagram USB 2.0 series Marvell Avastar 88W8766U Integrated WLAN/Bluetooth Single-Chip SoC SPECIFICATIONS APPLICATIONS • Laptop/Netbook • Imaging platforms (printers, digital picture frames) • Gaming platforms • Consumer electronic devices (TV, DVD players, Blu-ray players, etc.) WLAN MAC • Ad-Hoc and Infrastructure Modes • RTS/CTS for operation under DCF • Hardware filtering of 32 multicast addresses and duplicate frame detection for up to 32 unicast addresses • On-chip Tx and Rx FIFO for maximum throughput • Open System and Shared Key Authentication services GENERAL FEATURES • Single-chip integration of 802.11 wireless radio, baseband, MAC, CPU, memory, host interfaces • CMOS and low-swing sinewave input clock • 40 MHz crystal clock support • Low power operation supporting deep sleep and standby modes • Option to power directly from a single 3.3V supply or to use 3.3V/1.8V/1.2V pre-regulated supplies • A-MPDU Rx (de-aggregation) and Tx (aggregation) • 20/40 MHz coexistence • Reduced Inter-Frame Spacing (RIFS) bursting • Management information base counters • Radio resource measurement counters • Block acknowledgement with 802.11 extension • Dynamic frequency selection (DFS) • Transmit beamformee support • One time programmable (OTP) memory to eliminate need for external EEPROM • Transmit rate adaptation • Fully compatible with Marvell Power Management device(s) • Long and short preamble generation on a frame-by-frame basis for 802.11b frames • Transmit power control • Marvell Mobile Hotspot IEEE 802.11/STANDARDS • 802.11 data rates of 1 and 2 Mbps • 802.11b data rates of 5.5 and 11 Mbps WLAN BASEBAND • 802.11a/g data rates 6, 9, 12, 18, 24, 36, 48, and 54 Mbps for multimedia content transmission • 802.11n 1x1 SISO (on-chip Marvell SISO RF radio) • Backward compatibility with legacy 802.11a/g/b technology • 802.11g/b performance enhancements • WLAN/Bluetooth LNA sharing • 802.11n compliant, with maximum data rates up to 72 Mbps (20 MHz channel) and 150 Mbps (40 MHz channel) • PHY data rates up to 150 Mbps • 802.11d international roaming • 802.11e QoS block acknowledgement (with support for 802.11n extension) • 20 MHz bandwidth/channel, 40 MHz bandwidth/channel, upper/lower 20 MHz bandwidth in 40 MHz channel, and 20 MHz duplicate legacy bandwidth in 40 MHz channel mode operation • Modulation and Coding Scheme (MCS)—0~7 and 32 (duplicate 6 Mbps) • 802.11h transmit power control • Enhanced radar detection for long and short pulse radar • 802.11h DFS radar pulse detection • Enhanced AGC scheme for DFS channel • 802.11i enhanced security • Japan DFS requirements for W53 and W56 • 802.11k radio resource measurement • Radio resource measurement • 802.11r fast hand-off for AP roaming • Optional 802.11n SISO features: • 802.11w protected management frames - 20/40 MHz coexistence • Fully supports clients (stations) implementing IEEE Power Save mode - 1-stream STBC reception • Wi-Fi Direct connectivity - Short guard interval - RIFS on receive path - Beamformee function and hardware acceleration PACKAGING - Greenfield Tx/Rx • QFN • Power save features PROCESSOR WLAN RADIO • CPU - Integrated Marvell Feroceon® CPU (ARMv5TE-compliant) - 160 MHz maximum CPU clock speed • DMA - Independent 4-Channel Direct Memory Access (DMA) MEMORY • Internal Memory - Internal SRAM for Tx frame queues/Rx data buffers - Boot ROM - ROM patching capability • Integrated direct-conversion radio • 20 and 40 MHz channel bandwidths • Integrated T/R switch for 2.4 GHz path • Integrated power amplifiers for both 2.4 GHz and 5 GHz paths • Optional bypass for integrated power amplifiers • Supports external amplifier for 5 GHz path • 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 - Integrated power amplifiers with power control - Closed/open loop power control (0.5 dB increments) - Optimized Tx gain distribution for linearity and noise performance series Marvell Avastar 88W8766U Integrated WLAN/Bluetooth Single-Chip SoC SPECIFICATIONS WLAN RADIO (continued) • WLAN Local Oscillator - Fractional-N for multiple reference clock support - Fine channel step PERIPHERAL BUS INTERFACES • Clocked Serial Unit (CSU) - 3-Wire, 4-Wire (3W4W) Interface - 2-Wire Serial Interface (TWSI) - 1-Wire Serial Interface 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) BLUETOOTH • Bluetooth 4.0 + HS • Bluetooth Class 2 • Bluetooth Class 1 • Single-ended, shared Tx/Rx path for Bluetooth • Shared LNA for WLAN/Bluetooth • Baseband and radio BDR and EDR packet types—1 Mbps (GFSK), 2 Mbps (/4-DQPSK), and 3 Mbps (8DPSK) • Fully functional Bluetooth baseband—AFH, forward error correction, header error control, access code correlation, CRC, encryption bit stream generation, and whitening • Adaptive Frequency Hopping (AFH) including Packet Loss Rate (PLR) and RSSI • Interlaced scan for faster connection setup • Simultaneous active ACL connection support • Automatic ACL packet type selection • Full master and slave piconet support • Scatternet support • HCI layer verified to function with major profile stack vendors • SCO/eSCO voice over HCI • All standard pairing, authentication, link key, and encryption operations • Standard Bluetooth power saving mechanisms (i.e., hold, sniff modes and sniff-subrating) • Enhanced low power scan mode • Dynamic Transmit Power Control (TPC) • Channel Quality Driven (CQD) data rate • SBC off load for A2DP streaming • Wideband Speech Support • Supports Advertiser, Scanner, Initiator, Master, and Slave roles and connects up to 64 links • Supports WLAN/Bluetooth Coexistence (BCA) protocols • Shared RF with BDR/EDR • Supports encryption (AES) • Hardware support for intelligent Adaptive Frequency Hopping (AFH) • BDR/EDR, LE, and WLAN coexistence HOST INTERFACES • SDIO and USB 2.0 interfaces COEXISTENCE • Advance coexistence support for internal Bluetooth and WLAN - SPI Serial (EEPROM) Interface • 16550 Universal Asynchronous Receiver/Transmitter (UART) • General Purpose Input Output (GPIO) • One-Time Programmable (OTP) memory to eliminate need for external EEPROM TEST • On-chip diagnostic information series Marvell Avastar 88W8766U Integrated WLAN/Bluetooth Single-Chip 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_88W8766U-01 6/11