BCM5325 Datasheet, PDF (2/2 Pages) Broadcom Corporation. – FIVE-PORT 10/100 SWITCH WITH ON-CHIP PACKET BUFFER

A uto MDI/MDIX
A uto MDI/MDIX
A uto MDI/MDIX
A uto MDI/MDIX
A uto MDI/MDIX
MII or 7 wire
Interfac e
10/100 P HY
10/100 P HY
10/100 P HY
10/100 P HY
10/100 P HY
E 2PR OM
Interfac e
OVERVIEW
MA C
MA C
MA C
MA C
MA C
MA C
E 2PR OM
Interfac e
S witc h F abric
and AR L Logic
P riority Mapping
R egis ter 802.1p
DMA Interfac e
128 K B Packet B uffer
L E D Interfac e
LE Ds
The Broadcom BCM5325 device is a highly integrated solution. It
combines all of the functions of a high-speed switch system—
including packet buffer, PHY transceivers, media access
controllers, address management, and a nonblocking switch
fabric—into a single 0.18µ CMOS device. It 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.
This device 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.
E2PROM interfaces provide easy programming of the 802.1p
QoS queues. This allows switch traffic to be given different
classes of priority or service, for example, voice traffic for IP phone
applications, video traffic for multimedia applications, or data
traffic for e-mail applications.
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®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2004 by BROADCOM CORPORATION. All rights reserved.
5325-PB05-R
07/13/04
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Web: www.broadcom.com