BCM1250B2K650 Broadcom, BCM1250B2K650 Datasheet
BCM1250B2K650
Manufacturer Part Number
BCM1250B2K650
Description
Manufacturer
Broadcom
Datasheet
1.BCM1250B2K650.pdf
(2 pages)
Specifications of BCM1250B2K650
Family Name
BCM1250
Device Core
SB-1
Device Core Size
64b
Frequency (max)
650MHz
Mounting
Surface Mount
Pin Count
860
Package Type
BGA
Lead Free Status / Rohs Status
Not Compliant
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Two scalable 64-bit MIPS CPUs
• 600 MHz–800 MHz
• 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 multiprocessor bus
• Connects the CPUs, L2 cache, memory controller and I/O bridges
• Runs at half the CPU core frequency; 256 bits wide
On-chip L2 cache
• 512 KB, shared by both CPUs
• 4-way associative, ECC protected
• Ways can be removed to provide fast on-chip RAM
DDR memory controller
• wo channels, each with a 64-bit data bus plus optional ECC
• Runs up to 200 MHz clock rate, 400 MHz data rate
• Support for DDR SDRAM, SGRAM, and FCRAM
High-speed packet interfaces
• Three 10/100/1000 Ethernet MACs; 802.3 compliant
• Option to configure MACs into packet FIFOs
• Up to two packet FIFOs each capable of OC-48 data rates
PCI interface
• 32 bits, 33/66 MHz (PCI 2.2)
• Host bridge or target device
HyperTransport™ (formerly LDT) I/O interface
• Complies with HyperTransport standard for high-speed I/O fabric
• 500-MHz clock rate, double data rate, for 600-MHz CPUs; 600-MHz
• Peak bandwidth of 9.6 Gbps in each direction @ 600 MHz
• Supports double-ended fabrics (to link two BCM1250s)
Integrated system I/O
• Generic I/O for direct connect to boot ROM, flash
• Two SMBus serial configuration interfaces
• PCMCIA control interface
• Two serial interfaces
8–10W power dissipation @ 800 MHz
Support for leading operating systems including VxWorks
and NetBSD
Evaluation board platform available with tools, firmware and software
drivers
Extensive, on-chip debug features
clock rate for 800-MHz CPUs
HIGH-PERFORMANCE, INTEGRATED 64-BIT MULTIPROCESSOR
F E A T U R E S
Packet Processing Blade
®
4 10/100/1000 Ports
24 10/100 Ports
®
BCM5238
BCM5238
BCM5238
BCM5404
, Linux
SMII
®
10/100/1000BASE-T
Aggregation,
L2/L3 Switching
24 10/100 +2
Gigabit Ports
BCM5615
BCM5680
8 Port
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BCM1250
Industry-leading performance
• Processing speed of up to 10 Mpps*
• 128-Gbps on-chip bus bandwidth; 50-Gbps memory bandwidth, 30-
Low power dissipation of 8–10W (@ 800 MHz)
High functional integration
Programming ease and flexibility based on MIPS64
Architecture (ISA)
Scalable multiprocessor chip and system architecture
Broad tools and system software support
For additional information on the BCM1250 evaluation boards, refer
to the BCM91250A and BCM91250E product briefs
*Based on internal Broadcom benchmark, using BCM1250 for standard
IPv4 L3 look-up/switching.
Due to the BCM1250's world-class performance, power efficiency and
integration, the processor is ideal for a broad variety of applications
including:
• Enterprise workgroup and backbone switches
• VPN switches/routers
• Multiservice access concentrators
• SAN routers/gateway/switches
• IP services/subscriber management platforms
• Web-server switches
• High-end firewall/intrusion detection devices
• Wireless basestations
PCI
GMII
GMII
Gbps total I/O bandwidth
S U M M A R Y O F B E N E F I T S
Deep Packet
Look-up, L4-L7
Processing
2,400 Mbps
IPSec
BCM5840
BCM1250
BCM1250
FPGA
HyperTransport
A P P L I C A T I O N S
DDR
DRAM
DDR
DRAM
BCM5823
®
Instruction Set
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BCM1250B2K650 Summary of contents
Page 1
... Broad tools and system software support • For additional information on the BCM1250 evaluation boards, refer to the BCM91250A and BCM91250E product briefs *Based on internal Broadcom benchmark, using BCM1250 for standard IPv4 L3 look-up/switching. • Due to the BCM1250's world-class performance, power efficiency and integration, the processor is ideal for a broad variety of applications including: • ...
Page 2
... UARTs for console ports or ® Broadcom , the pulse logo, Connecting everything trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/ or the EU. Any other trademarks or trade names mentioned are the property of their respective owners ® BROADCOM CORPORATION 16215 Alton Parkway, P ...