BCM5325E
®
SIX-PORT MANAGED 10/100 ROBOswitch™
FEATURES
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High level of integration:
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Five transceivers (802.3u compliant)
•
Six Media Access Controllers (MACs) (802.3x compliant)
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1-Mbit packet buffer and 512-Kbit control memory
•
Non-blocking switching
•
802.1p QoS packet classification with four priority queues
•
Port-based and 802.1Q-based VLAN with 16 entries
SUMMARY OF BENEFITS
•
Enables a new generation of affordable five-port 10/100
switches with highest integration of enhanced L2+ features
•
Utilizes field-proven industry-standard 10BASE-T/100BASE-
TX (100BASE-FX-compatible) Fast Ethernet transceivers—
lowering overall system interoperability and reliability risks
•
802.1Q based VLAN and flexible priority queues mapped to
selectable protocols such as 802.1p, DiffServ, and COS,
enables the switch to be designed into a wide variety of
applications for multimedia and data traffic
•
Supports 802.1x for network security
•
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•
•
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802.1d Spanning Tree
Supports 802.1x EAPOL higher layer protocol
Programmable storm control
1K MAC addresses with automatic learning and aging
Programmable per port flow control and back-pressure
MII or reversed MII
MDC/MDIO and SPI interfaces
WAN port and protected port support
Port mirroring and IGMP layer 3 snooping
Internal oscillator simplifies design and reduces cost
3.3V and 2.5V, power consumption is less than 1.0W
•
WAN port allows one of the ports to be specified for WAN
connectivity, in which case all traffic coming to the WAN port
is forwarded to the CPU
•
Programmable per port storm provides better traffic
management
•
MII port supports additional 100TX/FX
•
Optional reversed MII port connects directly to an 802.3
compliant MAC
•
Access to all internal registers through SPI or MDC/MDIO
interfaces
•
Switch management features: Port statistic counters
BCM5325E/BCM5325U pin-to-pin compatible with
BCM5325M/BCM5325 respectively
•
128-pin MQFP package
5325E Block Diagram
Auto MDI/MDIX
Auto MDI/MDIX
Auto MDI/MDIX
Auto MDI/MDIX
Auto MDI/MDIX
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
MAC
MAC
MAC
MAC
MAC
Port and 802.1Q
based VLAN
Port, 802.1p, MAC,
IPv4/IPv6 DiffServ
4 CoS queues
802.1x & 802.1D
MII / RvMII
Interface
CPU Interface
MAC
SPI / CPU
Interface
ARL Table
Multicast Group
IGMP Snooping
OVERVIEW
5325F Block Diagram
Auto MDI/MDIX
Auto MDI/MDIX
Auto MDI/MDIX
Auto MDI/MDIX
Auto MDI/MDIX
MII
MII / RvMII
Interface
CPU Interface
Voltage
Regulator
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
MAC 0
MAC 1
MAC 2
MAC 3
Port and 802.1Q
based VLAN
Port, 802.1p, MAC,
IPv4/IPv6 DiffServ
4 CoS queues
802.1x & 802.1D
MAC 4
MAC 5
SPI / CPU
Interface
ARL Table
Multicast Group
IGMP Snooping
The
BCM5325E
is the feature-enhanced and pin-compatible six-port
switch to the industry leader BCM5325M ROBOswitch™. This device
combines all the functions of a high-speed switch system, including
packet buffers, PHY transceivers, MACs, address management, and a
non-blocking switch fabric, into a single 0.18-µm CMOS device. The
BCM5325E
complies with the IEEE 802.3, 802.3u, and 802.3x
specifications, including the MAC control PAUSE frame and auto-
negotiation subsections, providing compatibility with all industry-
standard Ethernet and Fast Ethernet devices.
The
BCM5325E
contains five full-duplex 10BASE-T/100BASE-TX
Fast Ethernet 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 100BASE-TX Fast Ethernet
on Category 5 UTP cable.
The
BCM5325E
comes in the three options of
BCM5325E,
BCM5325F, and BCM5325U. The
BCM5325E
and BCM5325U are
pin-compatible to the industry five-port FE leader BCM5325M and
BCM5325, respectively. The BCM5325F includes the PHY-MUX
option where the fifth 10/100 PHY can be configured to connect to MAC
4, MAC 5 internally or external MAC via MII. This allows the flexible
use of the fifth PHY for special application, or to be used with an external
WAN MII interface, ideal for broadband and SOHO gateway/router
applications.
In addition to the robust 10/100 Ethernet DigiPHY, the five-port switch
in the
BCM5325E
includes rich feature sets such as four priority queues
supporting port, MAC, 802.1p, DiffServ-based Class of Service suitable
for voice over IP, video, and data traffic for multimedia applications.
In addition,
BCM5325E
supports other advance L2 managed features
including port-based and 802.1Q VLAN, 802.1x EAPOL protocol
filtering, IGMP snooping, and mirroring.
Broadcom
®
, the pulse logo,
ROBOswitch™
,
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.
5325E-PB00-R
04/15/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
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