bcm5680 Broadcom Corp., bcm5680 Datasheet
bcm5680
Manufacturer Part Number
bcm5680
Description
Bcm5680 8-port Gigabit Switch On A Chip
Manufacturer
Broadcom Corp.
Datasheet
1.BCM5680.pdf
(2 pages)
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Switch fabric to deliver 12-Mpps switching performance,
providing line rate throughput independent of protocol layer
processed
Layer 2 through 7 filtering and ContentAware™ packet
classification, at full line rate on all ports
Integrated buffer memory
• Configurable to be static, dynamically allocated, or both
• Highly efficient data memory packing
Eight 10/100/1000 Ethernet MACs
Gigabit stacking support for higher density system requirements
IEEE 802.1 Support
• Q => Support for VLAN
• D => Support for Spanning Tree
• p => Support for traffic classification
8K MAC and 2K IP address tables on chip
Flexible link aggregation on any port
Port mirroring support
Low-power 3.3/2.5V operation
400-pin TBGA package
BCM5680 8-PORT GIGABIT SWITCH ON A CHIP
F E A T U R E S
Non-Blocking 8-Port Multi-Layer Gigabit Switch
®
Bridge
GPIC
PCI
CMIC
GPIC
BCM5404
PHY or
Fiber Xcvr
SDRAM
ContentAware
GPIC
System Bus
L2-L7
BCM5680
Flash
CPU
GPIC
TM
GPIC
Serial
Port
Layer 3 IP
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BCM5680
Represents the highest level of silicon integration achieved for a
complete eight-port gigabit switch, integrating the switch fabric,
MACs, address tables and packet buffering functions.
The highly programmable filter engine (FFP) supports wire-speed
pack-by-packet filtering and classification, making the BCM5680
the ideal choice for sophisticated switching applications.
Supports a wide range of choices in user management costs,
featuring both an I2C and a 33/66 MHz PCI interface.
Supports four levels of CoS; maps to 802.1p priority levels.
Provides advanced packet flow control with HOL prevention,
backpressure support, and packet rate control (802.3x).
At 3 msec, the BCM5680 provides the world’s lowest latency for
an eight-port gigabit switch.
The BCM5680 seamlessly integrates with the BCM5600 (24 Fast
Ethernet plus 2 Gigabit Ethernet ports), the BCM5602 and other
BCM5680s to provide high levels of flexibility in network system
designs.
GPIC
BCM5404
PHY or
Fiber Xcvr
S U M M A R Y O F B E N E F I T S
GPIC
Packet Buffer
512 KB
GPIC
controller
Micro-
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bcm5680 Summary of contents
Page 1
... Provides advanced packet flow control with HOL prevention, backpressure support, and packet rate control (802.3x). • msec, the BCM5680 provides the world’s lowest latency for an eight-port gigabit switch. • The BCM5680 seamlessly integrates with the BCM5600 (24 Fast Ethernet plus 2 Gigabit Ethernet ports), the BCM5602 and other BCM5680s to provide high levels of flexibility in network system designs ...
Page 2
... The integrated L2, L3, and filtering tables deliver industry-leading switching performance. The BCM5680 achieves full wirespeed layer 2 and layer 3 switching on all ports. Additionally, its innovative architecture supports wirespeed layer 2 through layer 7 filtering, utilizing a 35 Gbps internal high speed bus ...