bcm1455 Broadcom Corp., bcm1455 Datasheet

bcm1455

Manufacturer Part Number

bcm1455

Description

Quad-core 64-bit Mips Processor

Manufacturer

Broadcom Corp.

Datasheet

1.BCM1455.pdf (2 pages)

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Download datasheet (164Kb)

•

Four 64-bit MIPS

• Quad-issue in-order pipeline with dual-execute and dual-memory

• Enhanced skew pipeline enables a zero load-to-use penalty

• 32-KB instruction cache and 32-KB data cache (ECC protected)

Fast on-chip multiprocessor bus

• Connects the CPUs, L2 cache, memory controller, and I/O bridges

• Runs at half the CPU core frequency, and is 256 bits wide

On-chip L2 cache

• 1 MB shared by four CPUs and I/O agents

• Eight-way associative, ECC protected

• Any way can be programmed as fast on-chip RAM

DDR memory controller

• Memory bandwidth as high as 100 Gbps

• Configurable as 2x64-bit or 4x32-bit wide channels

• Runs up to 400-MHz clock rate, 800-MHz data rate

• Support for DDR1 and DDR2

Integrated and network system I/O

• Four Gigabit-Ethernet MACs configurable as packet FIFO interfaces

• 64-bit PCI-X interface at 133 MHz

• Generic I/O for direct connect to boot ROM, flash memory

• Two SMBus serial configuration interfaces

• PCMCIA control interface and up to 16 interrupts

• Four UART interfaces

On-chip debug capability

• EJTAG

• Bus trace unit (internal logic analyzer)

Support for leading operating systems, including VxWorks

and QNX

Evaluation board platform available with samples (includes tools,

firmware, and software drivers)

pipes

CPUs, scalable from 800 MHz–1.2 GHz

F E A T U R E S

QUAD-CORE 64-BIT MIPS

10 Gbps HiGig Port

High Density Service Card

, Linux

BCM1455

BCM5690

12 x GE

+ HiGig

4 x GMII (one/CPU)

PCI

BCM5823

BCM1455

DRAM

DDR

BCM1455

•

Because of its world-class performance, power efficiency, and

integration, the BCM1455 processor is ideal for a broad variety of

applications, including:

• Enterprise-class Routers and Switches

• Multi-function security platforms (VPN/SSL/IDS)

• High-end RAID Arrays

• SAN routers/gateways/switches

• Wireless infrastructure platforms (e.g. RNC, GGSN, MSC)

• High-Density Computing

Industry-leading performance

• 2.5 Dhrystone MIPS/MHz per CPU

• 20 Million packets per second of L3 forwarding

• 128 Gbps (@ 1.0 GHz) on-chip bus bandwidth, with 100 Gbps

Low-power dissipation of 19W @ 1 GHz

High functional integration, reducing overall system cost

Programming ease and flexibility based on MIPS64™ instruction set

architecture (ISA)

Software compatible with BCM1250 and BCM112x

Broad tools and system software support

memory bandwidth and over 31 Gbps total I/O bandwidth

S U M M A R Y O F B E N E F I T S

BCM5823

DRAM

DDR

PROCESSOR

A P P L I C A T I O N S

Related parts for bcm1455

bcm1455 Summary of contents

Page 1

... Software compatible with BCM1250 and BCM112x • Broad tools and system software support • Because of its world-class performance, power efficiency, and integration, the BCM1455 processor is ideal for a broad variety of applications, including: • Enterprise-class Routers and Switches • Multi-function security platforms (VPN/SSL/IDS) • High-end RAID Arrays • ...

Page 2

... To enable higher data rates (or in cases where Ethernet protocol processing is not required), the Gigabit-Ethernet MACs can be configured as 8-bit and/or 16-bit packet FIFOs. The BCM1455 also integrates a 64-bit, 133-MHz PCI-X local bus for direct connection to I/O devices. Four serial ports are available for use as UARTs for console ports. ...

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