BCM112X HIGH-PERFORMANCE Brief MIPS PROCESSORS processo

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BCM112X HIGH-PERFORMANCE Brief MIPS PROCESSORS processo

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BCM112X
BCM112X HIGH-PERFORMANCE
Brief
MIPS PROCESSORS
processors 112x1product line: BCM1125H:
BCM1125:
Industry-leading performance Dhrystone MIPS/MHz
Processing speed Mpps* 128-Gbps on-chip bandwidth, 26-Gbps memory bandwidth, 29-Gbps total bandwidth
MIPS64CPU pipeline; dual execute, dual memory pipes Quad-issue order
Enhanced skew pipeline enables zero load-to-use penalty 32-KB instruction cache, 32-KB data cache Advanced branch predictors memory-coherent (ZBbus) on-chipCPU, cache, memory controller Connects
bridges Runs half core clock; bits wide
cache On-chip shared bridges 256KB,
Four-way associative, protected Ways removed provide fast on-chip
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.
memory controller channel with 64-bit data plus
Runs clock rate, Mbps data rate Support SDRAM, SGRAM, FCRAM
High-speed packet interfaces 802.3 compliant 10/100/1000 Ethernet MACs;
Option configure MACs into packet FIFOs enable OC-48 data rates
BCM112x'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
32-bit, 33/66
interface
Host bridge target device
HyperTransport (LDT) 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)
Example: card TCP/IP Acceleration
system boot ROM, FLASH, fast Generic direct connect
peripherals/ASICs SMBus serial configuration interface PCMCIA control interface serial interfaces
BCM58XX 2,400 Mbps IPSec BCM5421 Copper
FLASH
GenBus
Extensive, on-chip debug features Software-compatible with BCM1250 leading SupportNetBSD andoperating systems including VxWorks Linux Evaluation board platform available with tools, firmware
GMII BCM5421S Fiber
BCM1125H
SDRAM
Host
software drivers
JTAG
Debug/ Trace GPIO/ Interrupt/ PCMCIA Dual SMBus Gbps Generic Flash
Data Mover
SB-1 Core bits
Cache
Memory Controller Serial Interface Serial Interface
Gbps
ZBbus
Mbps
core clock, Gbps 10/100/ 1000 FIFO
Mbps
10/100/ 1000
Host Bridge
19.2 Gbps BCM1125H Only
Gbps
Gbps
Broadcom's BCM112x products state-of-the-art processor solutions targeted fast-growing networking, wireless communications, storage, server/networking appliance imaging markets. BCM112x processors offer industryleading performance, high functional integration, power levels small package required next-generation networking applications. BCM1125H BCM1125 software-compatible with dual-processor BCM1250 share development modeling tools, firmware, operating systems with that processor. BCM112x 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, split-transaction, 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-speed provided using 66-MHz (rev 2.2) local and, BCM1125H, AMD's HyperTransport(LDT) fabric addition PCI.
Broadcom®, pulse logo®, Connecting Everythingand SiByteare trademarks Broadcom Corporation and/or subsidiaries United States certain other countries. other trademarks property their respective owners.
serial ports provided connections T3/OC-1 rates Mbps). enable low-chip-count systems, BCM112x 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. BCM112x 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 CORPORATION 16215 Alton Parkway, P.O. 57013 Irvine, California 92619-7013
2002 BROADCOM CORPORATION. rights reserved. 112X-PB01-R-3.5.02
Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com

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