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BCM5338M Datasheet(PDF) 2 Page - Broadcom Corporation.

Part No. BCM5338M
Description  NINE-PORT MANAGED 10/100 SWITCH WITH IEEE 802.1/P/X/Q VLAN
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Maker  BOARDCOM [Broadcom Corporation.]
Homepage  http://www.broadcom.com
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BCM5338M Datasheet(HTML) 2 Page - Broadcom Corporation.

   
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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
© 2004 by BROADCOM CORPORATION. All rights reserved.
5338M-PB01-R
04/21/04
Broadcom®, the pulse logo, MIB Autocast®
, DigiPHY™, 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.
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 system—including packet buffers, PHY transceivers, MACs,
address management, and a non-blocking switch fabric—into a single
0.18-micron CMOS device. The BCM5338M complies with IEEE
802.3, 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.
DMA
Interface
MAC
256-KB Packet Buffer
LED
Interface
Switch Fabric
512 Tag IEEE 802.1Q
VLAN
SPI/CPU
Interface
Priority Map Register
IEEE 802.1p
Internal
Osc.Circuit
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
LEDs
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
10/100 PHY
MAC
MAC
MAC
MAC
MAC
MAC
MAC
MAC
MIB Registers
ARL Table
Block Diagram


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