DUAL-CORE 64-BIT MIPS® PROCESSOR WITH SPI-4/HT (NEW!) FEATURES 64

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DUAL-CORE 64-BIT MIPS® PROCESSOR WITH SPI-4/HT (NEW!) FEATURES 64

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BCM1280
DUAL-CORE 64-BIT MIPS® PROCESSOR WITH SPI-4/HT (NEW!)
FEATURES 64-bit MIPS® CPUs, scalable from MHz-1.2
Quad issue in-order pipeline with dual-execute dualmemory pipes Enhanced skew pipeline enables zero load-to-use penalty 32-KB instruction cache 32-KB data cache (ECC protected) Fast on-chip multiprocessor Connects CPUs, cache, memory controller, bridges Runs half core frequency bits wide On-chip cache shared CPUs agents Eight-way associative, protected programmed fast on-chip memory controller Memory bandwidth high Gbps Configurable 2x64-bit 4x32-bit wide channels Runs 400-MHz clock rate, 800-MHz data rate Support DDR, DDR2, FCRAM Three independent, 19.2 full-duplex ports Configurable 16/8-bit HyperTransport(HT) Channelized SPI-4 Phase Runs aggregate bandwidth 38.4 Gbps port Includes Intelligent Hash Filter Engine each port route packets Supports glueless connectivity multiple BCM1280 devices build distributed shared-memory system with hardwarebased coherency On-chip switch Connects multiprocessor high-speed interfaces 256-Gbps bisection bandwidth Supports both packet transfer memory transactions Integrated network system Four Gigabit-Ethernet MACs configurable packet FIFO interfaces 64-bit PCI-X interface Generic direct connect boot ROM, flash memory SMBus serial configuration interfaces PCMCIA control interface interrupts Four UART interfaces On-chip debug capability EJTAG trace unit (internal logic analyzer) Support leading operating systems, including VxWorks®, Linux®, QNX®, NetBSD Evaluation board platform available with samples (includes tools, firmware, software drivers)
SUMMARY BENEFITS Industry-leading performance
Dhrystone MIPS/MHz Million packets second forwarding Gbps GHz) on-chip bandwidth, with Gbps memory bandwidth Gbps bandwidth Low-power dissipation
High functional integration, reducing overall system cost Programming ease flexibility based MIPS64instruction architecture (ISA) Software compatible with BCM1250 BCM112x
Broad tools system software support
APPLICATIONS
Because world-class performance, power efficiency, integration, BCM1280 processor ideal broad variety applications, including: Enterprise-class routers switches Multifunction security platforms (VPN/SSL/IDS) High-end RAID Arrays routers/gateways/switches Wireless infrastructure platforms (e.g., RNC, GGSN, MSC)
Multiservice Card
BCM1280 ASIC
SPI-4.2
SPI-4.2
SPI-4.2
Fabric Interface
Expansion
OVERVIEW
JTAG
Debug/ Trace
Data Mover
SB-1 Core Bits
Core
Cache
Memory Controller
Gbps
Dual SMBus Serial Interfaces Memory Bridge SPI-4 SPI-4 SPI-4 Packet
ZBbus
core clock; Gbps 10/100/ 1000 10/100/ 1000 10/100/ 1000 FIFO 10/100/ 1000
GPIO/ Interrupt/ PCMCIA Generic Flash 64-Bit PCI-X
4.2/HT (19.2 Gbps each direction)
GMII 8b/16b FIFO
BCM1280 device MIPS64 processor core-based system-on-achip (SOC) that offers industry-leading performance, high functional integration, low-power levels required next-generation computing, storage, networking applications. BCM1280 scalable chip multiprocessor (CMP) system consisting Broadcom SB-1 high-performance MIPS64 CPUs, shared 1-MB cache, memory controller, integrated I/O. major blocks processor connected together ZBbus, high-speed, split-transaction multiprocessor bus. implements standard MESI protocol ensure coherency between CPUs, cache, agents, memory. addition, BCM1280 supports interchip ccNUMA protocol cache coherent distributed shared memory systems. three high-speed ports provide interchip communications other BCM1280 processors bridging chips. Each port optionally configured SPI-4 Phase packet interface connectivity Gbps network devices. Four GigabitEthernet MACs (10/100/1000) enable easy interfacing LANs control backplanes. enable higher data rates cases where Ethernet protocol processing required), Gigabit-Ethernet MACs configured 8-bit and/or 16-bit packet FIFOs. BCM1280 also integrates 64-bit, 133-MHz PCI-X local direct connection devices. Four serial ports available UARTs console ports.
enable low-chip count systems, BCM1280 also includes configurable generic that allows glueless connection boot flash memory simple peripherals. On-chip debug, trace, performance monitoring functions assist both hardware software designers debugging tuning system. system either big-endian little-endian mode. Implementation MIPS64 SB-1 core high-performance implementation standard MIPS64 that incorporates MIPS-3D MIPS-MDMX application-specific extensions (ASEs). core supports 4-issue enhanced skew pipeline dispatch memory (integer, floating point, MDMX, MIPS-3D) instructions cycle.
Next Generation Broadband Processors
BCM1255 BCM1280 BCM1455 BCM1480 CPUs Cache DDR2 Support MACs GMII GMII GMII GMII PCI-X 64-bit 64-bit 64-bit 64-bit SPI-4/HT Ports
Broadcom®, pulse logo, Connecting everything® trademarks Broadcom Corporation and/ subsidiaries United States certain other countries. other trademarks property their respective owners.
BROADCOM CORPORATION 16215 Alton Parkway, P.O. 57013 Irvine, California 92619-7013
2004 BROADCOM CORPORATION. rights reserved. 1280-PB01-R 09/30/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

DUAL-CORE 64-BIT MIPS® PROCESSOR WITH SPI-4/HT (NEW!) FEATURES 64

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