O V ERVI EW

®

Phone: 949-450-8700

Fax: 949-450-8710

E-mail: info@broadcom.com

Web: www.broadcom.com

BROADCOM CORPORATION

16215 Alton Parkway, P.O. Box 57013

Irvine, California 92619-7013

© 2006 by BROADCOM CORPORATION. All rights reserved.

5324M-PB01-R

04/07/06

the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries

and/or the EU. Any other trademarks or trade names mentioned are the property of their respective

owners.

BCM5324M Block Diagram

BCM5324M is designed based on the field-proven industry leader

ROBOSwitch™. This device combines all the functions of a high-speed

switch system including packet buffers, PHY transceivers, media access

controllers, address management, and a non-blocking switch fabric into

a single 0.13

μm CMOS device. It complies with IEEE 802.3

specifications, including the MAC control PAUSE frame and auto-

negotiation subsections, providing interoperability with all industry-

standard Ethernet, Fast Ethernet and Gigabit Ethernet devices.

BCM5324M is the industry first Ethernet to integrate twenty-four full-

duplex 10BASE-T/100BASE-TX/FX Fast Ethernet transceivers. Each

transceiver incorporates the Broadcom PHY Advance Cable Diagnostic

technology, which can detect cable shorts as well as open and measure

the cable length. BCM5324M also supports two GMII/RGMII/TBI

interfaces, providing flexible 10/100/1000BASE-TX and fiber

connectivity.

BCM5324M supports 8K MAC addresses, 4K VLAN addresses and

stores up to 256 multicast addresses including IP multicast. BCM5324M

also supports 802.1d Spanning Tree, 802.1s Multiple STP, 802.1w Rapid

STP, and flexible ingress and egress checking rules for VLAN

processing.

BCM5324M supports up to four CoS queues per egress port, ideal for

delay sensitive multimedia applications. Traffic can be assigned to these

CoS queues based on the Port ID, the MAC address, the 802.1p priority

field in layer 2, the TOS field in IPv4 or the DiffServ field in IPv6

headers. Together with other advanced features, such as 802.1x EAPOL

protocol filtering, Port bandwidth/rate control, MAC address locking

and IGMP snooping at Layer2 and Layer3 allow system vendors to build

advanced L2+ switch systems for the multitenant/multidweller unit

(MDU/MTU) markets.

The BCM5324M family of switches is optimized for WebSmart and L2

managed designs. The new level of integration brings L2 manageable to

SMB switches at an affordable price. Single chip replaces the typical 3-

or 4 chip solutions in the market today.

For Network Management, the BCM5324M includes 70+ on-chip MIB

counters to collect receive and transmit statistics from each port for

supporting the Etherlike MIB, Bridge MIB, MIB II (interfaces) and the

RMON MIB (Groups 1, 2, 3, 9).

Product ordering information:

• BCM5324M (24FE+2G)

• BCM5322M (24FE+2MII)

• BCM5321M (16FE+2G)

• BCM5320M (8FE+2G)

GMII / RGMII / TBI

GMII / RGMII / TBI

MII / RvMII Interface

CPU Interface

Auto MDI / MDIX

Auto MDI / MDIX

Auto MDI / MDIX

Auto MDI / MDIX

LEDs

QoS

Traffic Aggregation

Port Trunking

Secure MAC

Storm Control

3 Mb Shared Buffer

Interface

IGMP Snooping

4K VLAN Table

MIB Counters

8K L2 MAC Table

Rate Control

Internal Osc. Circuit

10/100

PHY 0

10/100

PHY 1

10/100

PHY 2

10/100

PHY 23

SPI / CPU

Interface

MAC

LED

Interface

MAC

MAC

MAC

MAC

GMAC

GMAC

BCM5461

BCM5461