bcm5385 Broadcom Corp., bcm5385 Datasheet
bcm5385
Manufacturer Part Number
bcm5385
Description
Bcm5385 - 5-gbe Port Switch With Integrated Gbe Copper Phy
Manufacturer
Broadcom Corp.
Datasheet
1.BCM5385.pdf
(2 pages)
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Highest silicon integration level achieved for a 5-port, 10/100/1000
Ethernet switch device
Seventh-generation switch on a chip
Integrates:
Four 10/100/1000 transceivers (802.3ab compliant)
Five MACs (802.x compliant) with support for 9 Kbyte Jumbo Frames
One RGMII Interface and 128-Kbyte packet buffer memory
Nonblocking 5 Gigabit Ethernet fully integrated switch fabric
SPI Interface for easy setup and smart unmanaged operation
Classifies packets using four 802.1p QoS or DiffServ/TOS priority
queues
VLAN 4K 802.1Q or port-based supported
Supports up to 8k unicast MAC addresses
Supports MAC-based port aggregation (trunking)
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 1.2 V CMOS core: <3.7W Pd.
Fanless operation supported
Integrated voltage regulator for simplified power supply design
324-pin FBGA package (small form factor 19 mm x 19 mm)
5GE PORT SWITCH WITH INTEGRATED GE COPPER PHY
F E A T U R E S
5 Gigabit Ethernet Ports for SOHO and Subnetwork Applications
®
Cable/DSL/Wireless
Router
Printer
IP Phones
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BCM5385
Enables a new generation of lower-cost switches with Gigabit Ethernet
connectivity and much smaller form factors.
Uses field-proven industry-standard 10/100/1000BASE-T
transceivers-lowers overall system interoperability and reliability
risks.
Provides the most cost effective Gigabit Ethernet 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 switch.
Jumbo frame support allows the device to be connected to corporate
server farms and networks while maintaining maximum TCP/IP
performance.
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.
On-chip HP auto-MDI/MDIX on all transceivers automatically detects
and corrects for crossover cables and allows direct switch-to-switch
connection.
Lowest possible system cost through minimized number of
components.
Higher system reliability and noise reduction due to elimination of
component with lowest MTBF (the fan).
S U M M A R Y O F B E N E F I T S
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bcm5385 Summary of contents
Page 1
... Integrated voltage regulator for simplified power supply design • 324-pin FBGA package (small form factor mm) 5 Gigabit Ethernet Ports for SOHO and Subnetwork Applications Cable/DSL/Wireless BCM5385 Enables a new generation of lower-cost switches with Gigabit Ethernet • connectivity and much smaller form factors. • ...
Page 2
... virtual LANs (VLANs) can be set up via the SPI port for separation of different users or groups on the network. For multi-Gigabit per second connections, multiple ports of the BCM5385 can be grouped together to form logical links. These links feature automatic load balancing. ® ...