BCM5328M EIGHT-PORT 10/100 SWITCH WITH ON-CHIP PACKET BUFFER FEATU RES S UMMA RY O F B ENEFITS The highest level of silicon integration achieved for a eight- Enables a new generation of lower cost 10/100 switches in port 10/100 Ethernet switch device much smaller form factors Fourth generation switch on a chip Utilizes field-proven industry-standard 10BASE-T/100BASE- TX Fast Ethernet transceiverslowering overall system The BCM5328M integrates: interoperability and reliability risks Eight transceivers (802.3u compliant) Flexible interfaces support a wider variety of application Nine media access controllers (802.x compliant) needsfiber for long distances or an additional 100TX port 256-KB packet buffer Sufficient address range handles all remote office, branch Non-blocking switch fabric office and home office needs Non-blocking up to 24 ports through a 2.6-Gbps expansion Port VLAN, trunking, and 802.1p priority enables the switch to port, cascading up to three devices be designed into a wide variety of applications Packet classification 802.1p QoS priority queues CPUs are not required to initialize and run in cost-sensitive Port-based VLAN unmanaged applicationsproviding true Plug and Play MII or 7-wire interface supports an additional 100FX or 100TX connectivity connection enabling a sixth user connection or uplink Internal oscillator circuit simplifies design and reduces Supports up to 4K MAC addresses overall system cost Supports full-duplex (802.3x) and half-duplex options Ability to gather and support basic management statistics Supports automatic address learning and aging with only a very low-cost microcontroller Internal oscillator circuit Low-cost management using the on-chip MIB registers allows the collection and transmission of statistics for each port and Typical power consumption: < 1.8W provides an upward migration path for corporate users 208-pin PQFP package On-chip HP auto-MDI/MDIX feature automatically detects and Management features: corrects for crossover cables and allows direct switch-to- TM Low-cost MIB Autocast function switch connection Hardware support for Simple Network Management Protocol (SNMP), Remote Network Monitoring (RMON) and Spanning Tree Low Cost Managed 24-Port 10/100 Smart SwitchO VER VIEW MAC MDI/MDIX 10/100 PHY MIB Registers MDI/MDIX 10/100 PHY MAC 10/100 PHY MDI/MDIX MAC Switch Fabric and ARL Logic MDI/MDIX 10/100 PHY MAC MDI/MDIX 10/100 PHY MAC Priority Mapping MDI/MDIX 10/100 PHY MAC Register 802.1p MDI/MDIX 10/100 PHY MAC DMA Interface MDI/MDIX 10/100 PHY MAC MII or MAC 7-wire Interface 256-KB Packet Buffer Inter-Chip Expansion SPI/CPU LEDS CPU or LED Interface Interface E2PROM Interface The Broadcom BCM5328M device is a highly integrated solution. It Even though this device is primarily targeted for the cost-sensitive combines all the functions of a high-speed switch systemincluding unmanaged market, very low-cost management can also be provided packet buffer, PHY transceivers, media access controllers, address utilizing the proprietary MIB Autocast function. MIB Autocast management, and a non-blocking switch fabricinto a single 0.18 encapsulates the on-chip MIB statistics and sends them out automatically CMOS device. It complies with the IEEE 802.3, 802.3, and 802.3x on a predefined port (or ports) at programmed intervals. This feature specifications, including the MAC control PAUSE frame and auto- eliminates the need for a costly CPU and simplifies the management negotiation subsections, providing compatibility with all industry-standard interface. Ethernet and Fast Ethernet devices. Using this mode, the BCM5328M periodically transmits a legal Ethernet This device contains eight full-duplex 10BASE-T/100BASE-TX Fast frame on a designated port. The frames can be intercepted by an external Ethernet transceivers, each of which performs all of the physical layer management probe or a dedicated network management application, interface functions for 10BASE-T Ethernet on Category 3, 4, or 5 resident on any node within the network. This function requires only a Unshielded Twisted Pair (UTP) cable and 100BASE-TX Fast Ethernet on small, low-cost microcontroller to initialize and configure the device. Category 5 UTP cable. The BCM5328M provides an on-chip MIB statistics register to collect, SPI or E2PROM interfaces provide easy programming of the 802.1p QoS receive, and transmit statistics for each port. Additionally it provides direct queues. This allows switch traffic to be given different classes of priority or hardware support for the EtherLike MIB, Bridge MIB, MIB II (interfaces) service, for example, voice traffic for IP phone applications, video traffic for and the first four groups of the RMON MIB. All nine groups of RMON can multimedia applications, or data traffic for e-mail applications. be supported by using additional capabilities, such as port mirroring/ snooping, together with an external microcontroller to process some MIB attributes. The MIB registers can be accessed through the serial management port by an external microcontroller. Broadcom , the pulse logo, MIB Autocast, 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 Phone: 949-450-8700 16215 Alton Parkway, P.O. Box 57013 Fax: 949-450-8710 Irvine, California 92619-7013 E-mail: info broadcom.com Web: www.broadcom.com 2004 by BROADCOM CORPORATION. All rights reserved. 5328M-PB05-R 07/13/04