BCM1280

BCM8603 ® EIGHT-PORT SAS/SATA-II TO PCI EXPRESS™/PCI-X® RAID-ON-CHIP FEATURES • Single-chip solution that integrates: • Eight ports of SAS/SATA-II 3 Gbit, including a highperformance PHY • On-chip microprocessor • DDR memory controller • XOR engine for RAID5 hardware assist • Host interfaces—PCI-X® 1.0/PCI Express™ (x4) • Broadcom QDMA™ engines • 256 independent command queue entries per port • Advanced interrupt coalescing algorithms • Supports battery-backed write cache SUMMARY OF BENEFITS • Highly integrated solution reduces design time and complexity for faster time-to-market • Data protection in case of power failure with support for battery-backed write cache • Uses high-performance/reliability SAS disk drives and/or cost effective SATA-II 1.5/3-Gbit drives • Flexible PCI based designs of PCI-X, PCI Express, or both, via an internal bridge • Available enterprise-class RAID stack with the XelCore™ Fulcrum™ architecture • RAID 0, 1, 5, 10, 50, 1n, 10n—split mirroring and hiding • Online—capacity expansion, RAID level migration, and array creation and deletion • Controller spanning—spans up to 4 controllers and 32 drives • Hot sparing and drive roaming • Windows® and Linux® driver support • Hot plug support • Peripheral I/O: • LPC for external Flash/ROM and serial GPIO interface • Dual I2C busses—dual UART and JTAG support • PCI Express to PCI-X bridge • 680-PBGA package Block Diagram PCI-Express 4x (2 Gbps) PCI-X 133 MHz/64b PCI-Express BRIDGE PCI-X On-chip CPU and XOR Peripheral I/O DDR SAS/SATA Ports LPC I2C Dual UART JTAG SEMB Ctrlr GPIO Ctrlr DDR Memory Controller SAS/SATA ports (3 Gbps per port) OVERVIEW External Storage System 1-GB DDR Memory DDR Server Storage Processors Runs iSCSI and management software 4x GbE PHY/iSCSI BCM1255/BCM1280 SiByte Processor Eight SAS/SATA disks DDR DDR Memory Memory Memory Controller Controller DDR DDR PCI-E Eight-port BCM8603 RAID PCI-X Hyper Transport PCI-X HT-1000 Eight-port BCM8603 SAS/SATA DDR RAID Cache Southbridge Southbridge Runs RAID software on internal MIPS The BCM8603 is a complete PCI-X/PCI-Express to the SAS/SATA-II 3Gbit RAID-on-chip (ROC) solution that significantly reduces CPU utilization, system design time, and complexity. The high-performance ports support 3-Gbit SAS and 1.5-Gbit/3-Gbit SATA-II disk drives. In addition to integrating all hardware necessary to implement highperformance RAID and multiport SAS/SATA connectivity, the BCM8603 integrates a complete RAID stack that runs on the internal MIPS® uP, representing a complete subsystem solution that can be easily integrated into a server or external storage system. The BCM8603 device communicates with the host using one of two flexible options of x4 PCI-E or PCI-X 1.0. bridging between the PCI-E and PCI-X interfaces enables extra PCI-X slots for I/O expansion, when the PCI-E interface is used as a host interface to the BCM8603. The BCM8603 attaches directly to eight SAS or SATA-II disk drives via a high-performance, integrated 3-Gbit PHY that is capable of driving long-length backplanes. Hot plug capability is also supported, enabling drives to be inserted and removed without affecting system operation. Support for battery-backed write cache provides data protection and integrity by supplying power to the DDR cache memory containing write data in the case of power failure. A 1.0 compliant Low Pin Count (LPC) interface is available to connect the BCM8603 to an external Flash/ROM. Four pins are used to implement an SGIO interface for drive activity and general purpose I/O. Dual I2C interfaces running are available to communicate with an external enclosure management device or a serial EEPROM. Applications • • • • Server host-based RAID Server intelligent RAID Virtual disk backup Low-cost external storage Broadcom®, the pulse logo, Connecting everything®, the Connecting everything logo, XelCore™, and Fulcrum™ are trademarks of Broadcom Corporation and/or its affiliates in the United States, EU and/or certain other countries. Any other trademarks or trade names mentioned are the property of their respective owners. ® BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2005 by BROADCOM CORPORATION. All rights reserved. 8603-PB100-R 02/14/05 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com