BCM5338MIQMG

BCM5338MIQMG Datasheet


BCM5338M

Part Datasheet
BCM5338MIQMG BCM5338MIQMG BCM5338MIQMG (pdf)
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BCM5338MKQM BCM5338MKQM BCM5338MKQM
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BCM5338M

NINE-PORT MANAGED 10/100 SWITCH WITH IEEE 802.1/P/X/Q VLAN

SUMMARY OF BENEFITS
• Sixth-generation L2+ Fast Ethernet switch on a chip
• The BCM5338M integrates:
• Eight transceivers IEEE 802.3u compliant
• Nine medium access controllers MACs IEEE 802.3x
• Enables a new generation of affordable 10/100 switches with highest integration of enhanced L2+ features
• Uses field-proven industry-standard 10BASE-T/100BASE-TX 100BASE-FX compatible Fast Ethernet lowering overall system interoperability and reliability risks
• IEEE 802.1Q based VLAN and flexible priority queues mapped to selectable protocols such as IEEE 802.1p, Diffserv, ToS, and CoS, enable the switch to be designed to a wide variety of applications for multimedia and data traffic
• Supports port based Extensible Authentication Protocol over LAN in four application modes forwards only EAPOL frames to the CPU for authentication and allows secure mode traffic filtering
• Supports IEEE 802.1ad aggregation/port trunking
• Per port storm control of broadcast, multicast, and unlearned unicast traffic
• Flexible per port ingress/egress rate control with minimum resolution of 48 Kbps for better traffic management
• MAC address locking enhances security control
• MII port supports additional 100TX/FX
• Access to all internal registers through SPI or MDC/MDIO interfaces
• Low-cost management using the on-chip MIB registers allows the collection and transmission of basic management statistics for each port
• Switch management features
• Low-cost MIB Autocast function
• Hardware support for Simple Network Management Protocol SNMP , remote network monitoring RMON , IEEE 802.1d spanning tree protocol, IEEE 802.1s multiple spanning tree up to 32 , and IEEE 802.1w rapid spanning tree protocol

OVERVIEW

Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX MII/Reversed MII Interface Inter-Chip Expansion

CPU Interface
10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY

Internal Osc.Circuit

Block Diagram

SPI/CPU Interface

MIB Registers ARL Table

Switch Fabric 512 Tag IEEE 802.1Q

VLAN

Priority Map Register IEEE 802.1p

DMA Interface
256-KB Packet Buffer

LED Interface

LEDs

The BCM5338M switch is a sixth-generation switch designed based on the field-proven industry-leaders, the BCM5328 and BCM5328M switches. This device combines all of the functions of a high-speed switch packet buffers, PHY transceivers, MACs, address management, and a non-blocking switch a single 0.18-micron CMOS device. The BCM5338M complies with IEEE 802.3u, and IEEE 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 BCM5338M contains eight 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 performs 100BASE-TX Fast Ethernet functions on Category 5 UTP cable.

In addition to the robust 10/100 Ethernet DigiPHY , MIB Autocast, and management functions, the eight-port switch in the BCM5338M has a rich feature set suitable for voice over IP and video and data traffic for multimedia applications.

The four-level priority queues mapped to IEEE 802.1p, Diffserv, ToS, and CoS, 512 entries IEEE 802.1Q VLAN, IEEE 802.1x EAPOL
protocol filtering, MAC based trunking with link fail-over, per-port bandwidth/rate control, MAC address locking, IGMP snooping at layer2/3, and port protection function, allow system vendors to build advanced L2+ switch systems for the multitenant/multidweller unit MDU/MTU markets.

The proprietary MIB Autocast function encapsulates the on-chip MIB statistics and sends them out automatically on a predefined port or ports at programmed intervals. The BCM5338M periodically transmits a legal Ethernet frame on a designated port. The frames can be intercepted by an external management probe or a dedicated network management application resident on any node within the network. This function requires only a small, low-cost microcontroller to initialize and configure the device.

The BCM5338M provides an on-chip MIB statistics register to collect, receive, and transmit statistics for each port. Additionally it provides direct hardware support for the Ether-like MIB, Bridge MIB, MIB II interfaces and the first four groups of the RMON MIB. All nine groups of RMON can 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.
the pulse logo, MIB DigiPHY , and Connecting are trademarks
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Datasheet ID: BCM5338MIQMG 520212