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| Storage Solutions Serial ATA Bridge Chip Solutions 88I8030 The 88I8030 family of Serial ATA (SATA) bridge chips, the rst offering in the Marvell family of high-speed interface input/output (I/O) solutions, allows storage OEMs to take advanced data storage systems to the next level of performance. By converting Parallel ATA to SATA, the Marvell 88I8030 bridge solution allows Hard Disk Drive (HDD), motherboard and storage subsystem manufacturers to utilize their current Parallel ATA electronics for faster time-to-market prior to full industry transition to SATA. The 88I8030 devices are designed to interface to traditional Parallel ATA HDD controllers as well as to host chipsets running up to 150 MBps. Since the bridge allows parallel connectivity over short trace distances, the 88I8030 product allows for 150 MBps transfer rates with low noise and high reliability. The devices employ the latest SATA Physical Layer (PHY) technology, starting with the SATA Working Group-dened Generation I speed of 1.5 Gbps, and scalable to 3.0 Gbps to support the future Generation II, Phase II, SATA speed. The 88I8030Os PHY leverages four generations of production-proven Serializer/Deserializer (SERDES) technology from its industry-leading Alaska Gigabit PHY products. The Marvell bridge device implements user-selectable SSC for reduced EMI in storage systems. This makes the interface attractive not only as an inside-the-box technology, but also potentially increases its usefulness for out-of-the-box interconnects in many consumer electronics applications. The 88I8030 products offer premphasis and amplitude settings with programmable coefcients to help ensure signal integrity over extended trace and cable lengths. This advanced signaling capability allows for optimal performance in many varieties of storage applications. PHY UART FIFO Test/Debug CNFG PLL Serial ATA PRODUCT OVERVIEW Parallel ATA Link, Transport and Command Layers Register Fig 1. 88I8030 Block Diagram FEATURES Supports both host and device operation User-selectable maximum speeds of 66/100/133/150 MBps Ultra low power consumption Supports spec-dened power management Advanced design tolerates +/- 1.5% frequency offset User-selectable Spread Spectrum Clocking (SSC) support Programmable reference clock settings Fully-digital Phase Locked Loop (PLL) Pre-emphasis and amplitude settings with programmable coefcients BENEFITS Enables faster system development Provides exibility in system design Helps to extend battery life in mobile applications and lessen cooling requirements in storage enclosures Efcient power consumption control Allows for the use of less expensive ceramic resonators, lowering system cost Reduces Electro Magnetic Interference (EMI), key for both storage systems and PC motherboards Increase design exibility Reduces sensitivity to process variations, increasing manufacturability Ensure signal integrity over extended backplane distances up to 20+ inches of FR4 trace Serial ATA Bridge Chip Solutions FEATURES BENEFITS Supports ATA command queuing Master/Slave support APPLICATIONS Significantly increases system performance Allows two SATA ports to connect to every Parallel port The 88I8030 products can be used in a variety of storage system applications. In conjunction with host chipsets or with PCIbased ATA host controllers, the 88I8030 devices enable immediate introduction of SATA-enabled motherboards. When used with ATA RAID controllers, the 88I8030 devices enable the deployment of SATA RAID. The 88I8030 bridge chip can also be used to externally convert Parallel ATA HDDs to SATA. In addition, two 88I8030 devices can be used in conjunction with dual-port Parallel ATA drives for fail-over applications. PC/Storage Enclosure P-ATA AT-Bus Host Adaptor Host Bridge AT TRS Link Logic PHY Dual Bridge Chips SATA Host-Bus Adaptor Serial ATA Interface at 1.5 Gbps (150 MBps) Device Bridge PHY Link TRS AT AT-Bus HDC Logic SATA Drive Fig 2. 88I8030 Host and Device Bridge System Diagram The Marvell 88I8030 family of SATA bridge chips comes with a complete set of hardware development tools to assist storage networking hardware engineers with product evaluation. MarvellOs worldwide eld applications engineers collaborate closely with network storage equipment vendors to develop and deliver new competitive products to market on time. Marvell utilizes recognized world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low cost total solutions. 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 (c)2002 Marvell International Ltd. All rights reserved. Marvell, the Marvell logo, Moving Forward Faster, Alaska, the Galileo logo, and GalNet are registered trademarks of Marvell. Discovery, Fastwriter, Galileo Technology, GalTis, Horizon, Libertas, Prestera, and Virtual Cable Tester are trademarks of Marvell. All other trademarks are the property of their respective owners. 100500-001 05/02 This datasheet has been downloaded from: www..com Datasheets for electronic components. |
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