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| Storage Solutions Serial ATA Host Controller Solutions 88SX5080/88SX5081/88SX5040/88SX5041 The Marvell 88SX5040/88SX5041 and 88SX5080/88SX5081 devices are the industryOs first 4-port and 8-port Serial ATA PCI-X host controllers. The 88SX5040/88SX5041 and 88SX5080/88SX5081 products offer OEMs an ideal solution for developing Serial ATA storage arrays and subsystems. The 88SX5040/88SX5041 and 88SX5080/ 88SX5081 PHYs leverage four generations of production-proven Serializer/Deserializer (SERDES) technology from the Marvell Alaska Gigabit Ethernet PHY solutions. Configurable per-port PHY pre-emphasis and amplitude settings enable high-performance Serial ATA backplane implementations. Selectable Spread Spectrum Clocking (SSC) provides optimal Electromagnetic Interference (EMI) performance for high-density drive subsystems. The 88SX5040/88SX5041 and 88SX5080/88SX5081 devices are developed to support enterprise-class storage systems. The 133 MHz PCI-X interface provides a high-speed connection to industry-standard embedded system controllers and server/workstation chipsets. The 88SX5040/88SX5041 and 88SX5080/88SX5081 productOs Tag Command Queuing and Enhanced DMA (EDMA) architecture enable direct support for both standard hard drives and advanced hard drives with Serial ATA I/ATA-6 Tag Command Queuing. The EDMA engine offloads the host processor by automating the process of sending command requests and retrieving responses for each of eight request and response queue pairs, offering SCSI performance levels. The software Application Programmer Interface (API) provides a SCSI programming interface to the application, minimizing host processor loading. 1.5 Gbps Serial ATA Ports PHY PHY PHY PHY Serial ATA Controller 4 Channel Enhanced DMA Crossbar (Parity Protected) 2-Wire Serial 64-Bit PCI-X PHY PHY PHY PHY Serial ATA Controller* 4 Channel Enhanced DMA HDD Activity Indicators Flash/NVRAM Interface (88SX5081/ 88SX5041) *Additional 4 ports on 88SX5080/88SX5081 PRODUCT OVERVIEW www..com Fig 1. Serial ATA Host Controller (88SX5080/88SX5081) Block Diagram FEATURES Tag Command Queuing support Enhanced DMA SCSI programming model Programmable interrupt coalescing 64-bit/133 MHz PCI-X Internal data path parity protection Programmable pre-emphasis and amplitude PHY settings per port Flash BIOS Interface (88SX5081/88SX5041) Spread Spectrum Clocking (SSC) BENEFITS Significantly increases HDD and system performance Automates request/response command processing mechanism, reducing CPU overhead Optimizes system performance by reducing CPU overhead Allows CPU to service interrupts in groups, maximizing performance Provides a standard, high-bandwidth CPU subsystem interface Supports data integrity on internal as well as external interfaces Enables Serial ATA backplane designs of up to 30 inches of PCB trace PCI Expansion BIOS interface for RAID Adapter and RAID on Motherboard applications Reduces EMI for enterprise storage and server applications Serial ATA Host Controller Solutions APPLICATIONS The 88SX5080/88SX5081 and 88SX5040/88SX5041 controllers can be used in a variety of storage applications. When combined with a microprocessor subsystem, implementing devices such as the Marvell Discovery system controllers, the 88SX5080/ 88SX5081 and 88SX5040/88SX5041 devices enable high-performance Serial ATA solutions for Network Attached Storage (NAS), Storage Area Network (SAN), Direct Attached Storage (DAS), and Nearline Storage Array applications. In addition, the 88SX5080/ 88SX5081 and 88SX5040/88SX5041 products provide an ideal platform for development of Serial ATA RAID Adapters and RAID on Motherboard solutions. The performance features implemented on the 88SX5080/88SX5081 and 88SX5040/88SX5041 devices deliver SCSI HDD-based system performance levels at Serial ATA price points. Processor Fibre Channel or iSCSI Adapter Marvell Discovery System Controller Serial ATA Host Controller (88SX5080) Memory Serial ATA Host Controller (88SX5080) 8 Fig 2. Serial ATA Host Controller (88SX5080) Applications Diagram The Marvell 88SX5080/88SX5081 and 88SX5040/88SX5041 Serial ATA host controllers come with a complete set of hardware and software development tools to assist engineers developing next generation storage networking solutions with product evaluation and development. MarvellOs worldwide field applications engineers collaborate closely with storage networking equipment vendors to develop and deliver innovative products to market. Marvell utilizes recognized world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low cost total solutions. THE MARVELL ADVANTAGE: www..com 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, Raise The Technology Bar, UniMAC, Virtual Cable Tester, and Yukon are trademarks of Marvell. All other trademarks are the property of their respective owners. 88SX5080/81/40/41-001 08/03 Serial ATA Backplane 64-Bit PCI-X 64-Bit PCI-X 8 |
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