BOARDCOM BCM5388_04

BCM5388
®
8GE PORT SWITCH WITH INTEGRATED GE COPPER PHY
FEATURES
SUMMARY OF BENEFITS
• Highest silicon integration level achieved for an 8-port, 10/100/1000
• Enables a new generation of lower-cost switches with Gigabit Ethernet
• Seventh-generation switch on a chip
• Integrates:
• Uses field-proven industry-standard 10/100/1000BASE-T transceivers
Ethernet switch device
connectivity and much smaller form factors.
which 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.
Four 10/100/1000 transceivers (802.3ab compliant)
Eight MACs (802.x compliant) with support for 9 Kbyte Jumbo Frames
• 802.1Q tag VLAN, trunking, and 802.1p priority enables the switch to
Four RGMII Interfaces and 128-Kbyte packet buffer memory
be designed into a wide variety of applications from unmanaged to
smart switch.
Nonblocking 8-Gigabit Ethernet fully integrated switch fabric
• Jumbo frame support allows the device to be connected to corporate
SPI Interface for easy setup and smart unmanaged operation
server farms and networks while maintaining maximum TCP/IP
performance.
• Classifies packets using four 802.1p QoS or DiffServ/TOS priority
• CPUs are not required to initialize and run in cost-sensitive
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• Internal oscillator circuit simplifies design and reduces overall system
queues
VLAN 4k 802.1Q or port-based supported
unmanaged applications, providing true Plug and Play connectivity.
cost.
Supports up to 8k unicast MAC addresses
• On-chip HP auto-MDI/MDIX on all transceivers automatically detects
and corrects for crossover cables and allows direct switch-to-switch
connection.
Supports MAC-based port aggregation (trunking)
Flow control: full-duplex (802.3x) and half-duplex options supported
• Lowest possible system cost through minimized number of
components.
Supports automatic address learning and aging
• Higher system reliability and noise reduction due to elimination of
Internal oscillator circuit
component with lowest MTBF (the fan).
Low power 0.13 µm 1.2 V CMOS core: <3.8W Pd.
Fanless operation supported
Integrated voltage regulator for simplified power supply design
324-pin FBGA package (small form factor 19 mm x 19 mm)
8 Gigabit Ethernet Ports for SOHO and Subnetwork Applications
Uplink
Copper or Fiber
Printer
Cable/DSL/Wireless
Router
IP Phones
Server
OVERVIEW
Copper Interface
Port 0
Gigabit
PHY
Gigabit
MAC
Switch Controller
Copper Interface
Port 1
Gigabit
PHY
Gigabit
MAC
Quality of Service
(QoS)
Copper Interface
Port 2
Gigabit
PHY
Gigabit
MAC
VLAN
Copper Interface
Port 3
Gigabit
PHY
Gigabit
MAC
Internal
Regulators
Configuration
Pins
Register
Space
SPI Interface or
EEPROM
Interface
Jumbo Frames
RGMII Interface
Port 4
Gigabit
MAC
RGMII Interface
Port 5
Gigabit
MAC
RGMII Interface
Port 6
Gigabit
MAC
RGMII Interface
Port 7
Gigabit
MAC
The Broadcom BCM5388 device is a highly integrated solution. It
combines all the functions of a high-speed switch system, including
packet buffer, PHY transceivers, media access controllers, address
management, and a nonblocking switch fabric into a single 0.13 µm
CMOS device. It complies with IEEE 802.3, 802.3u, 802.3ab, and
802.3x specifications, including the MAC control, pause frame, and
auto-negotiation subsections, providing compatibility with all industrystandard Ethernet, Fast Ethernet, and Gigabit Ethernet devices.
This device contains four full-duplex 10/100/1000BASE-T transceivers,
each of which performs all of the physical layer interface functions for
10BASE-T Ethernet on Category 3, 4, or 5 unshielded twisted-pair
(UTP) cable and 100/1000BASE-T Fast/Gigabit Ethernet on Category 5
UTP cable. The remaining four ports feature a standard RGMII interface
to allow connection to Broadcom's market-leading 10/100/1000
transceiver family in order to provide fiber or copper Gigabit Ethernet
connections. The media access controllers on the BCM5388 also support
Port Trunking
Memory
Rate Control
Address
Management
Port Mirroring
Jumbo Frames which are typically used for high-performance
connections to servers because they offer a smaller percentage of
overhead on the link for more efficiency.
SPI or EEPROM interfaces provide easy programming of the on-chip
802.1p QoS and/or DiffServ/TOS. This allows switch traffic to be given
different classes of priority or service-for example, voice traffic for IP
phone applications, video traffic for multimedia applications, or data
traffic for e-mail applications. Up to 4k 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
BCM5388 can be grouped together to form logical links. These links
feature automatic load balancing.
Broadcom®, the pulse logo, 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.
5388-PB02-R
03/25/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: [email protected]
Web: www.broadcom.com