BCM5721
®
10/100/1000BASE-T CONTROLLER WITH INTEGRATED TRANSCEIVER
FEATURES
•
Single-chip device for server LAN-on-Motherboard (LOM) or
•
network interface card (NIC) applications
Integrated 10/100/1000BASE-T transceiver
•
10/100/1000BASE-T triple-speed MAC
•
High-speed RISC core with 24-KB cache
•
SMBus 2.0 controller
•
On-chip voltage regulation
•
Wake-on-LAN (WOL) power switching circuit
PCI Express host interface
•
1x lane
•
Four-pin interface
•
Functionality identical to PCI
Performance features
•
TCP, IP, and UDP checksum
•
Microsoft
®
Large Send Offload
•
Large burst read
•
Interrupt coalescing
Industry-compliant manageability features
•
IPMI 1.5 support
•
Standards-compliant WOL
•
Innovative out-of-box mode WOL
•
Hardware power switching
3.3V I/Os (5V tolerant)
SUMMARY OF BENEFITS
•
Wirespeed performance increases user performance
•
PCI Express provides wirespeed non-blocking throughput
•
TCP/IP offloads significantly reduce utilization of CPU
•
TCP/IP offloads significantly increase throughput to enable
faster downloads of large files
•
Industry's smallest GbE form factor enables easier
motherboard design
•
Innovative design reduces footprint to 67% smaller than
competing solutions
•
15 x 15-mm package
•
Integrated WOL switching eliminates external power
switching components
•
IPMI 1.5 remote manageability reduces IT costs
•
Support for standards-based manageability allows IT managers
to receive automatic alerts when PC support issues occur
•
Remote power-on/off features allow IT managers to power
cycle PCs to address issues
•
•
•
•
•
JTAG
OVERVIEW
RX
10/100/1000
PHY
TX
10/100/1000
MAC
Buffer
Memory
Memory
Controller
Processor
PCI
Express
25 MHz
PLL
Memory
PCI Express
Bus
LED Control
SMBus
EEPROM
Control
PLL
PCI
Clk
LED Signals
SMB Interface EEPROM Interface
The
BCM5721
is a fully integrated 10/100/1000BASE-T Gigabit
Ethernet media access control and physical layer transceiver solution for
high-performance network applications. The
BCM5721
combines a
triple-speed, IEEE 802.3 compliant media access controller (MAC), PCI
Express bus interface, on-chip buffer memory, and integrated physical
layer transceiver in a single device. The
BCM5721
is fabricated in a low-
voltage silicon process, providing an ultra-low power solution. By itself,
the
BCM5721
provides a complete single-chip Gigabit Ethernet NIC or
LOM solution.
The
BCM5721
includes a 10/100/1000-Mbps Ethernet MAC with full-
duplex and half-duplex capability at all speeds. Support for the following
802.3 functions is featured in the MAC:
•
VLAN tagging
•
Layer 2 priority encoding
•
Full-duplex flow control
The transceiver is fully compatible with the IEEE 802.3 standard for
auto-negotiation of speed. Additionally, several Plug-and-Play
enhancements are included to make the device even more user-friendly.
A unique integrated cable analyzer feature allows a user to self-diagnose
any issues with the network cabling that could affect the host machine.
A link quality indicator LED and a GUI application give installers an
instant visual indication of problems. This includes physical wiring
defects or channel conditions, such as excessive cable length, return loss,
crosstalk, echo, and noise.
Broadcom’s remote cable management and diagnostics software can be
used with the device to provide remote management of the cable and a
first level of diagnostics and fault isolation.
Target applications of the
BCM5721:
•
Server PC NIC
•
Server PC LOM
Software drivers available:
•
Windows NT
®
, 2000, XP, and 2003
•
Linux
®
2.2 and 2.4
•
NetWare
®
•
Solaris™ x86
•
UNIX
®
Broadcom
®
, the pulse logo, 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
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2003 by BROADCOM CORPORATION. All rights reserved.
5721-PB00-R
10/21/03
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
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