BCM5676
®
BCM5676 4-PORT, 96-GBPS SWITCH FABRIC
FEATURES
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Four 10-Gbps and 12-Gbps (HiGig+™) configurable switch
fabric ports
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Nonblocking, 96-Gbps wirespeed, backplane/switch fabric
performance
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Forwarding rate of 72 million packets/second
SUMMARY OF BENEFITS
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System vendors can build high-performance, high-density
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Gigabit Ethernet LAN switches in several form factors
Very low latency and advanced QoS enable seamless
integration of voice, video, and data traffic
Built-in high-speed XAUI interfaces with Broadcom-unique
SerDes technology eases and accelerates system design, while
reducing cost and conserving board space
Large internal data buffer memory eliminates the need for
expensive external memory
Drives up to 10m of low-cost copper cables backplane and
stacking support
Broadcom switch API compatibility enables reuse of resources
and fast time-to-market
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Multistage switch fabric scalable up to 750 Gbits
Eight integrated high-speed XAUI interfaces
Eight programmable priority queues per port
Port trunking (up to 4 ports) and mirroring across multiple
devices
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Hot-swap capable with AC coupling
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Supports redundancy on linecards for chassis-based
applications
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Advanced diagnostic features including IEEE 1149.1 boundary
scan, JTAG, and extensive BIST functionality
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Resilient link configuration through active multi-path
forwarding
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PCI and I
2
C interface
TARGET APPLICATIONS
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Switch fabric in modular Gigabit Ethernet chassis
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Switch fabric in high-port-count stand-alone or stackable
Gigabit Ethernet switches
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Switch fabric for in-server switch blade applications
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Packet-based switch fabric in telecom applications
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Broadcom switch API compatibility
Advanced 0.13-µm CMOS technology
Small 600-pin EBGA package; pin-compatible with BCM5671
Low power consumption
Non-blocking 4-port HiGig+ Switch Fabric
10G/
12G
10G
HiGig+
Interface
HiGig+
QUEUE SYSTEM
HiGig+
10G/
12G
CMIC
RAM
10G/
12G
FORWARDING TABLES
HiGig+
HiGig+
Protocol
Processor
HiGig+
10G/
12G
4 channels
of 3.125/3.75
Gbps
(XAUI I/F)
BOARDCOM [ Broadcom Corporation. ]
