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BCM8603
(R)
EIGHT-PORT SAS/SATA-II TO PCI EXPRESSTM/PCI-X(R) 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(R) 1.0/PCI ExpressTM (x4) * Broadcom QDMATM 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 XelCoreTM FulcrumTM 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(R) and Linux(R) 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 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(R) 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(R), the pulse logo, Connecting everything(R), the Connecting everything logo, XelCoreTM, and FulcrumTM 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.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 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

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