E
T4000 Single-Chip 28 x 1 Gbits/s
Layer 2+
E
thernet Switch
Overview
The 28-port
E
T4000 is part of the Agere
Systems
E
T4K family of gigabit
E
thernet
switch chip sets. These cost-effective, true
switch-on-chip solutions have been
developed to help simplify your design and
production efforts for Gb
E
switching systems.
The Agere Systems
E
T4000 is a complete
switch solution that provides 28 gigabit
E
thernet (Gb
E
) ports (I
EEE
®
compliant 802.3z
10/100/1000 Mbits/s
E
thernet MACs) in a
single chip. Twenty-four of the MACs connect
to external PHYs via 6-pin LVDS SGMII
interfaces, four can be connected to external
fiber PHYs via SerDes interfaces.
The
E
T4000 is offered in a 525-pin FCBGA
package and is fabricated in advanced
0.13 µm CMOS process technology. The
complete solution is designed to address
the power and size constraints in switching
applications. A seamless interface and
common API for use with the Agere
E
T1081
TruePHY™
multiport PHY will help reduce
costs and ensure performance.
The
E
T4000 is a highly integrated and fully featured
Layer 2 Ethernet bridge with integrated MACs, packet
buffers, and address tables. Its high levels of integration
can help significantly reduce design costs, reduce power
and space requirements, and increase reliability. The
E
T4000 offers proven TCP/IP network security features
such as L2/L3/L4 ACL as well as QoS capabilities. It
offers advanced service recognition and queuing to
support the ability to create and manage new QoS-
based services. These comprehensive QoS features and
the
E
T4000 wire speed performance enables enterprise
desktop aggregation switching applications.
A reference system design kit is available for the
E
T4000,
for more information please contact your Agere Systems
sales representative.
• Twenty-eight 10/100/1000 Mbits/s
E
thernet ports
(24 SGMII interfaces to Gb
E
copper PHYs, up to four
SerDes interfaces to Gb
E
fiber ports).
• Aggregate 42 Mpackets/s switching capacity (wire
speed operation).
• 32-bit, 66 MHz PCI processor interface.
• Two MDIO interfaces.
• Integrated packet buffer memory.
• Integrated address table memories.
• Full
I
EEE
802.1D bridging.
•
E
xtensive VLAN support.
Features
Features
(continued)
•
•
•
•
•
•
L2/L3/L4 classification for access control list (ACL) and quality of service (QoS).
Supporting IPv4 and IPv6
Advanced traffic management functions.
Link aggregation and mirroring.
Advanced 0.13 µm CMOS technology.
525-pin FCBGA package.
Applications
The Agere Systems
E
T4000 chip set solutions are used to create competitive Layer 2+ gigabit
E
thernet desktop switches. They
can be used for a 24-port port gigabit
E
thernet switch in standalone configuration, or with the addition of four fiber ports in
standalone configuration, or in high-density gigabit
E
thernet fabric switches.
System Diagram
24 Port Switch
- 24 10/100/1000M Copper Ports
- 4 Gb
E
SFP Ports
SerDes
PCI
1G Fiber
1G Fiber
1G Fiber
1G Fiber
E
T4000
24xSGMII
E
T1081
E
T1081
E
T1081
Processor
I
EEE
is a registered trademark of the Institute of
E
lectrical and
E
lectronics
E
ngineers, Inc.
For additional information, contact your Agere Systems Account Manager or the following:
INT
E
RN
E
T:
http://www.agere.com
E
-MAIL:
docmaster@agere.com
N. AM
E
RICA: Agere Systems Inc., Lehigh Valley Central Campus, Room 10A-301C, 1110 American Parkway N
E
, Allentown, PA 18109-9138
1-800-372-2447,
FAX 610-712-4106 (In CANADA:
1-800-553-2448,
FAX 610-712-4106)
ASIA:
CHINA:
(86) 21-54614688
(Shanghai),
(86) 755-25881122
(Shenzhen)
JAPAN:
(81) 3-5421-1600
(Tokyo), KOR
E
A:
(82) 2-767-1850
(Seoul), SINGAPOR
E
:
(65) 6778-8833,
TAIWAN:
(886) 2-2725-5858
(Taipei)
E
UROP
E
:
Tel. (44) 1344 296 400
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Agere, Agere Systems, the Agere logo, and TruePHY are trademarks of Agere Systems Inc.
Copyright © 2004 Agere Systems Inc.
All Rights Reserved
June 2004
BC04-023GSWC
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