BCM1125H HIGH-PERFORMANCE MIPS PROCESSOR FEATURES Highly int

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BCM1125H HIGH-PERFORMANCE MIPS PROCESSOR FEATURES Highly int

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BCM1125H
BCM1125H HIGH-PERFORMANCE MIPS PROCESSOR
FEATURES
Highly integrated single core processor running SB-1 MIPS64CPU Quad-issue order pipeline; dual execute, dual memory pipes Enhanced skew pipeline enables zero load-to-use penalty 32-KB instruction cache, 32-KB data cache Advanced branch predictors Fast, on-chip memory-coherent (ZBbus) Connects CPU, cache, memory controller bridges Runs half core clock; bits wide On-chip cache 256KB, shared bridges Four-way associative, protected Ways removed provide fast on-chip memory controller channel with 64-bit data plus Runs clock rate, Mbps data rate Support SDRAM, SGRAM, FCRAM High-speed packet interfaces 10/100/1000 Ethernet MACs; 802.3 compliant Option configure MACs into packet FIFOs enable OC-48 data rates interface 32-bit, 33/66 Host bridge target device HyperTransportI/O interface Complies with HyperTransport standard high-speed fabric 600-MHz clock rate, Gbps data rate Peak bandwidth 19.2 Gbps 8-bit link Supports double-ended fabrics (linking BCM1125Hs BCM1125H BCM1250)
SUMMARY BENEFITS
Industry-leading performance 2.23 DMIPS/MHz Processing speed Mpps* 128-Gbps on-chip bandwidth, 25-Gbps memory bandwidth, 30Gbps total bandwidth power dissipation starting less than High functional integration Programming ease flexibility based MIPS64 Scalable system architecture Broad tools system software support Software-compatible with BCM1250 *Based internal Broadcom benchmark, using BCM112x standard IPv4 look-up/switching.
APPLICATIONS
BCM1125H's world-class performance, power efficiency integration makes these processors ideal broad variety systems including: Networking: routers, switches Control plane processing Line cards Broadband access: DSLAM, CMTS, BRAS Wireless base stations Storage: RAID controllers, controllers, HBAs Web/networking/caching appliances Imaging: printers, copiers
Integrated system Generic direct connect boot ROM, FLASH, fast peripherals/ ASICs SMBus serial configuration interface PCMCIA control interface serial interfaces Extensive, on-chip debug features Software-compatible with BCM1250 Support leading operating systems including VxWorks®, Linux®, NetBSD Evaluation board platform available with tools, firmware software drivers
FLASH BCM5461 Copper
GMII GenBus
BCM1125H
SDRAM
BCM5461S Fiber
BCM5691 Gigabit Ethernet Switch
Example: Gigabit Ethernet Control Panel
OVERVIEW
JTAG Mbps Serial Interface Serial Interface Dual SMBus GPIO/ Interrupt/ PCMCIA
Debug/ Trace
SB-1 Core Bits ZBbus
256K Cache
Data Mover Memory Controller 8-25 Gbps
Mbps
core clock; Gbps 10/100/ 1000 10/100/ 1000 FIFO PCI/HT Bridge 32-Bit Host Bridge
Bridge Flash Interface Generic
Gbps
GMII 16-bit FIFO Gbps Gbps Gbps
speed provided using 66-MHz (rev 2.2) local 8-bit wide HyperTransport(HT) interface. serial ports provided connections T3/OC-1 rates Mbps). enable low-chip-count systems, BCM1125H processors also include configurable generic that allows glueless connection boot FLASH memory simple peripherals. On-chip debugging, tracing, performance monitoring functions assist both hardware software designers debugging tuning system. system either big- little-endian mode. BCM1125H processors manufactured TSMC's 0.13-µ process, packaged pin-compatible 31-mm packages. Implementation MIPS64 SB-1 core high-performance implementation standard MIPS64 Instruction Architecture (ISA), incorporates MIPS-3D MIPS-MDMX Application Specific Extensions (ASEs). core supports four-issue enhanced skew pipeline dispatch memory (Integer, Floating Point, MDMX MIPS-3D) instructions cycle.
Broadcom's BCM1125H product state-of-the-art processor solution targeted fast-growing networking, wireless communications, storage, server/networking appliance imaging markets. BCM1125H processors offer industry-leading performance, high functional integration, power levels small package required nextgeneration networking applications. BCM1125H software-compatible with dual-processor BCM1250 share development modeling tools, firmware, operating systems with processor. BCM1125H processors intelligent systems chip consisting Broadcom SB-1 high performance MIPS64 CPU, shared 256-KB cache, memory controller, integrated I/O. major blocks processor connected together ZBbus, high-speed, low-latency, splittransaction, memory-coherent bus. implements standard MESI protocol ensure coherency between CPU, cache, agents, memory. Gigabit Ethernet MACs (10/100/1000) enable easy interfacing LANs. enable higher data rates, cases where Ethernet protocol processing required, each configured 8-bit packet FIFO, both combined into 16-bit packet FIFO. High-
Broadcom®, pulse logo, Connecting everything® trademarks Broadcom Corporation and/ subsidiaries United States certain other countries. other trademarks mentioned property their respective owners.
BROADCOM CORPORATION 16215 Alton Parkway, P.O. 57013 Irvine, California 92619-7013
2004 BROADCOM CORPORATION. rights reserved. 1125H-PB01-R 06/24/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

BCM1125H HIGH-PERFORMANCE MIPS PROCESSOR FEATURES Highly int

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