BOARDCOM BCM5670A1KEB Bcm5670 8-port, 160 gbps switch fabric Datasheet

BCM5670
®
BCM5670 8-PORT, 160 Gbps SWITCH FABRIC
SUMMARY OF BENEFITS
FEATURES
• Eight 10-Gbps (HiGig™) switch fabric ports
• Nonblocking, 160-Gbps wire speed, backplane/switch fabric
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• System vendors can build high-performance, high-density
•
performance
Forwarding rate of 119 million packets/second
•
Eight Integrated high-speed XAUI interfaces
Eight programmable priority queues per port
•
Port trunking and mirroring across multiple devices
Hot-swap capable with AC coupling
•
Supports redundancy on linecards for chassis-based
applications
• Advanced diagnostic features including IEEE 1149.1 boundary
scan, JTAG and extensive BIST functionality
• Resilient link configuration through active multipath
forwarding
• PCI interface
TARGET APPLICATIONS
• Switch fabric in modular Gigabit Ethernet switches
• Switch fabric in high-port-count stand-alone or stackable
2
I C interface
Gigabit Ethernet switches
Broadcom switch API compatibility
• Switch fabric for chassis and in-server switch blade
Advanced 0.13 µm CMOS technology
applications
• Packet-based switch fabric in telco applications
Small 600-pin EBGA package
Low power: 10W
10 Gbps
HiGig
Interface
10G
HiGig
10 Gbps
FORWARDING TABLES
CMIC
RAM
HiGig
QUEUE SYSTEM
HiGig
10 Gbps
HiGig
Protocol
Processor
HiGig
10 Gbps
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•
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Gigabit Ethernet LAN switches in several form factors.
Support for multiple CoS and very low latency enables the
support of VoIP and other voice, video, and data applications.
Built-in high-speed XAUI interfaces with Broadcom-unique
SerDes technology eases and accelerates system design, while
reducing cost and conserving board space.
A 1152-KB internal data buffer memory eliminates the need
for expensive external memory.
Drives up to 10m of low-cost copper cables for stacking switch
applications.
Broadcom switch API compatibility enables reuse of resources
and fast time-to-market.
4 channels
of 3.125 Gbps
(XAUI I/F)
Nonblocking 8-Port Gigabit Ethernet Switch
OVERVIEW
HiGig (10 Gbps)
Port 3
HiGig (10 Gbps)
Port 2
XAUI
MAC
MAC
MAC
MMU
Ingress
128 KB
RAM
Pause_control
128 KB
RAM
FIFO
FIFO
MMU
Ingress
I2C Bus
PCI Bus
Port 0
XAUI
Pause_control
MMU
Port 1
XAUI
Pause_control
BCM5670
HiGig (10 Gbps)
128 KB
RAM
I2C I/F
PCI
DMA Buffers
FIFO
CMIC Bus Interface
Ingress
MR Bus Controller
Ingress
Ingress
MAC
XAUI
General Description
The Broadcom BCM5670 switch fabric is the central component of the
modular and highly scalable StrataXGS Gigabit Ethernet switch
architecture. StrataXGS components can be applied in a wide variety of
configurations, enabling system designers to strategically balance cost,
port density, and performance in the products they build.
Highly Integrated
The integration of Broadcom’s robust XAUI-compatible serializer/
deserializer (SerDes) interface on each BCM5670 port reduces board
complexity. The XAUI interface can be used to route high speed signals
across 44 inches of FR4, connectors, and backplanes. SerDes technology
also enables the use of inexpensive cables for stacking applications.
Superior Performance
Ingress
FIFO
XAUI
Port 7
HiGig (10 Gbps)
MMU
128 KB
RAM
MAC
XAUI
Port 6
HiGig (10 Gbps)
MMU
128 KB
RAM
MAC
XAUI
Port 5
HiGig (10 Gbps)
FIFO
MAC
XAUI
Port 4
Ingress
Pause_control
FIFO
MMU
128 KB
RAM
Pause_control
MAC
Ingress
128 KB
RAM
Pause_control
FIFO
MMU
Pause_control
Pause_control
FIFO
MMU
128 KB
RAM
Port 8
HiGig (10 Gbps)
HiGig (10 Gbps)
interface is 20 Gbps (10 Gbps, full-duplex). The BCM5670 switch fabric
interconnects other StrataXGS component chips across a 160-Gbps
backplane. It introduces very low switching latency, enabling the high
quality transmission of voice, video, and data traffic.
Flexible Management
The BCM5670 HiGig switch links to a host CPU through a PCI bus at
speeds of up to 66 MHz. Bus mastering and advanced DMA are
supported in hardware for the efficient exchange of packet data between
CPU memory and the BCM5670 switch.
The BCM5670 switch can also work without host CPU support, using an
I2C interface to initialize chip registers and forwarding tables. Also, the
BCM5632 chip can link to a BCM5670 via an XGMII-to-XAUI
converter, such as the BCM8011. As many as 15 BCM5632 chips can be
interconnected, providing up to 180 Gigabit Ethernet ports.
The BCM5670 delivers wire speed switching performance across all of
the ports simultaneously. The effective bandwidth of each HiGig
Broadcom®, the pulse logo, HiGig™ and Connecting everything® 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.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2004 by BROADCOM CORPORATION. All rights reserved.
5670-PB05-R
03/25/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: [email protected]
Web: www.broadcom.com
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