BCM5380M
®
8FE+2GE PORT SWITCH WITH ON-CHIP PACKET BUFFER
FEATURES
SUMMARY OF BENEFITS
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The highest level of silicon integration achieved for an eight+two-port,
10/100/1000 Ethernet switch device
Sixth-generation switch on a chip
The BCM5380M integrates:
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Eight 10/100 transceivers (802.3u compliant)
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Nine 10/100 media access controllers (802.x compliant)
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Two 10/100/1000 media access controllers
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One integrated 10/100/1000BASE-T/TX transceiver (802.3ab compliant)
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256-KB packet buffer and 128-KB control memory
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Nonblocking switch fabric
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One integrated 1-Gbps SerDes module
Cascadable to 24 Fast Ethernet + 6 Gigabit Ethernet ports through a
SerDes expansion port, 24FE + 2GE nonblocking
Packet classification 802.1p QoS priority queues
VLAN 4K 802.1Q or port-based supported
Reverse MII, MII, or 7-wire interface supports an additional 100BASE-
FX or 100BASE-TX connection or uplink
Supports up to 4,000 unicast MAC addresses
Flow control: full-duplex (802.3x) and half-duplex options supported
Supports automatic address learning and aging
Internal oscillator circuit
Low power 0.13-µm 1.2V CMOS core: 3.5 W Pd.
324-pin FBGA package (small form factor 19 mm
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19 mm)
Management features:
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Low-cost MIB Autocast™ function
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Hardware support for simple network management protocol (SNMP),
remote network monitoring (RMON), and spanning tree
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Enables a new generation of lower cost switches with gigabit
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connectivity and much smaller form factors
Uses field-proven industry-standard
10BASE-T /100BASE-TX Fast Ethernet/100BASE-T
transceivers—lowers overall system interoperability and
reliability risks
Flexible interfaces support a wider variety of application
needs—SerDes, fiber for long distances or additional
100/1000TX ports
Provides the most cost-effective gigabit connectivity to the
desktop for all remote, branch, and home office needs
802.1Q tag VLAN, trunking, and 802.1p priority enables the
switch to be designed into a wide variety of applications from
unmanaged to smart/managed switches
CPUs are not required to initialize and run in cost-sensitive
unmanaged applications, providing true Plug and Play
connectivity
Internal oscillator circuit simplifies design and reduces overall
system cost
Ability to gather and support basic management statistics with
only a very low-cost microcontroller
Low-cost management using the on-chip MIB registers allows
the collection and transmission of statistics for each port and
allows an upward migration path for corporate users
On-chip HP auto-MDI/MDIX on all transceivers
automatically detects and corrects for crossover cables and
allows direct switch-to-switch connection
Scalable and Cost-Effective Solutions for 8+1 or 16+2 or 24+3 Port 10/100/1000 Unmanaged/Managed/Smart Switch
Optional ARM7
Management Module
Optional uP or EEPROM
Smart switch option
8051 or
EEPROM
SMP
ARM
MII
BCM5380
BCM5380
BCM5380
10/100
10/100/1000
10/100
10/100
10/100/1000
10/100/1000
Expansion
BOARDCOM [ Broadcom Corporation. ]
