 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| BCM1125H (R) BCM1125H HIGH-PERFORMANCE MIPS PROCESSOR FEATURES * * Highly integrated single core processor running at 400 MHz - 900 MHz SB-1 MIPS64TM CPU * Quad-issue in 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 bus (ZBbus) * Connects the CPU, L2 cache, memory controller and I/O bridges * Runs at half the CPU core clock; 256 bits wide On-chip L2 cache * 256KB, shared by CPU and I/O bridges * Four-way associative, ECC protected * Ways can be removed to provide fast on-chip RAM DDR memory controller * One channel with a 64-bit data bus plus ECC * Runs up to 200 MHz clock rate, 400 Mbps data rate * Support for DDR SDRAM, SGRAM, and FCRAM High-speed packet interfaces * Two 10/100/1000 Ethernet MACs; 802.3 compliant * Option to configure MACs into packet FIFOs to enable OC-48 data rates PCI interface * 32-bit, 33/66 MHz PCI 2.2 * Host bridge or target device HyperTransportTM I/O interface * Complies with HyperTransport standard for high-speed I/O fabric * 600-MHz clock rate, 1.2 Gbps data rate * Peak bandwidth of 19.2 Gbps on 8-bit link * Supports double-ended fabrics (linking two BCM1125Hs or BCM1125H to BCM1250, BCM1255, BCM1280, BCM1455 or BCM1480) Integrated system I/O * Generic I/O for direct connect to boot ROM, FLASH, fast peripherals/ ASICs * SMBus serial configuration interface * PCMCIA control interface * Two serial interfaces Extensive, on-chip debug features 4W @ 400 MHz Software-compatible with BCM1250, BCM1255, BCM1280, BCM1455, and BCM1480 Support for leading operating systems including VxWorks(R), Linux(R), NetBSD(R), OSE(R), QNX(R) and TejaTM NP OS Multiple evaluation board platforms available with tools, firmware and software drivers SUMMARY OF BENEFITS * Industry-leading performance * 2.5 DMIPS/MHz * Processing speed of up to 4.3 Mpps* * 128-Gbps on-chip bus bandwidth, 25-Gbps memory bandwidth, 30Gbps total I/O bandwidth Low power dissipation starting at less than 4W @ 400 MHz High functional integration Programming ease and flexibility based on MIPS64 ISA Scalable system architecture Broad tools and system software support Software-compatible with BCM1250, BCM1255, BCM1280, BCM1455, and BCM1480 *Based on internal Broadcom benchmark, using BCM112x for standard IPv4 L3 look-up/switching. * * * * * * * * * * APPLICATIONS * The BCM1125H's world-class performance, power efficiency and integration makes these processors ideal for a broad variety of systems including: * Networking: routers, switches * Control plane processing * Line cards * Broadband access: DSLAM, CMTS, BRAS * Wireless base stations * Storage: RAID controllers, NAS controllers, HBAs * Web/networking/caching appliances * Imaging: printers, copiers * * * FLASH BCM5461 Copper GMII GenBus * * * * * BCM1125H PCI DDR SDRAM BCM5461S Fiber BCM5691 Gigabit Ethernet Switch Example: Gigabit Ethernet Control Panel OVERVIEW JTAG 55 Mbps Serial Interface Serial Interface Dual SMBus GPIO/ Interrupt/ PCMCIA D M A D M A Debug/ Bus Trace SB-1 Core 256 Bits ZBbus 256K L2 Cache Data Mover DDR Memory Controller 8-25 Gbps 55 Mbps 1/2 core clock; 128 Gbps @ 1 GHz DMA 10/100/ 1000 MAC DMA 10/100/ 1000 MAC FIFO PCI/HT Bridge 32-Bit PCI HT Host Bridge I/O Bridge Flash Interface and Generic I/O 1 Gbps 2 x GMII / 16-bit FIFO 2 Gbps @ 2 Gbps / @ 6 Gbps packet FIFO, or both can be combined into a 16-bit packet FIFO. Highspeed I/O is provided using a 66-MHz (rev 2.2) PCI local bus and 8-bit wide HyperTransportTM (HT) interface. Two serial ports are provided for WAN connections at up to T3/OC-1 rates (55 Mbps). To enable low-chip-count systems, the BCM1125H processors also include a configurable generic bus that allows glueless connection of a boot ROM or FLASH memory and simple I/O peripherals. On-chip debugging, tracing, and performance monitoring functions assist both hardware and software designers in debugging and tuning the system. The system can be run in either big- or little-endian mode. The BCM1125H processors are manufactured in TSMC's 0.13- process, and are packaged in pin-compatible 31-mm BGA packages. Implementation of MIPS64 ISA The SB-1 CPU core is a high-performance implementation of the standard MIPS64 Instruction Set Architecture (ISA), and incorporates the MIPS-3D and MIPS-MDMX Application Specific Extensions (ASEs). The core supports a four-issue enhanced skew pipeline and can dispatch up to two memory and two ALU (Integer, Floating Point, MDMX or MIPS-3D) instructions per cycle. Broadcom's BCM1125H product is a state-of-the-art processor solution targeted at the fast-growing networking, wireless communications, storage, server/networking appliance and imaging markets. BCM1125H processors offer industry-leading performance, high functional integration, and low power levels in a small package required by nextgeneration networking applications. The BCM1125H is software-compatible with the dual-processors BCM1250, BCM1255, and BCM1280 as well as with the quad-core processors BCM1455 and BCM1480. All these processors and share development and modeling tools, firmware, and operating systems with the processor. The BCM1125H processors are intelligent systems on a chip consisting of a Broadcom SB-1 high performance MIPS64 CPU, a shared 256-KB L2 cache, a DDR memory controller, and an integrated I/O. All major blocks of the processor are connected together via the ZBbus, a high-speed, low-latency, split-transaction, memory-coherent bus. The bus implements the standard MESI protocol to ensure coherency between the CPU, L2 cache, I/O agents, and memory. Two Gigabit Ethernet MACs (10/100/1000) enable easy interfacing to LANs. To enable higher data rates, or in cases where Ethernet protocol processing is not required, each MAC can be configured as an 8-bit Broadcom(R), the pulse logo, and Connecting everything(R) are trademarks of Broadcom Corporation and/ or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2004 by BROADCOM CORPORATION. All rights reserved. 1125H-PB02-R 10/11/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
Price & Availability of BCM1125H
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |