BCM5702 OVERVIEW
RX
10/100/1000
MAC
10/100/1000
PHY
Buffer
Memory
Memory
Controller
TX
Dual Processor
PCI
PLL
32-KB
Memory
EEPROM
Control
PCI
Bus
LED Control
SMBus
PLL
PCI
CLK
LED Signals
SMB Interface EEPROM Interface
The BCM5702 is a fully-integrated 10/100/1000BASE-T Gigabit
Ethernet media access control and physical layer transceiver solution for
high-performance network applications. The BCM5702 is a highly-
integrated solution combining a triple-speed, IEEE 802.3 compliant
media access controller (MAC), PCI bus interfaces, an on-chip buffer
memory, and an integrated physical layer transceiver in a single device.
The BCM5702 is fabricated in a low-voltage 0.13-µm CMOS process,
providing a low-power system solution. By itself the BCM5702 provides
a complete, single-chip, Gigabit Ethernet NIC or LOM solution.
The BCM5702 includes a 10/100/1000-Mbps Ethernet MAC with full/
half-duplex capability at all speeds and a 10/100/1000 copper PHY.
Support for the following 802.3 functions is featured in the MAC: VLAN
tagging, layer 2 priority encoding, link aggregation, and full-duplex flow
control.
The BCM5702 provides a PCI v2.2 bus interface. It also provides large
on-chip buffer memory for stand-alone operation. Dual, on-chip, high-
performance processors enable custom frame processing features,
including TCP segmentation.
The transceiver is fully compatible with the IEEE 802.3 standard for
auto-negotiation of speed. Additionally, several Plug and Play
enhancements have been added to make the device even more user-
friendly. A link quality indicator LED gives installers an instant visual
indication if there are any issues with the wiring plant supporting
operation at the desired speed, which include 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.
The BCM5702 continually monitors various channel conditions. The
optional wirespeed capability allows the BCM5702 to force auto-
negotiation to be automatically limited by the speed that the channel can
reliably support, rather than by the performance of the end equipment.
Target Applications of the BCM5702
Network interface card (NIC) designs
LAN on Motherboard (LOM) designs
SINGLE/DUAL PORT
10/100/1000
BASE-T
PCI 2.2 Adapters
SINGLE/DUAL PORT
10/100/1000
BASE-T
PCI 2.2 LOM
Gigabit Ethernet network interface cards (NICs) and LAN on Motherboard
(LOM) applications for desktop and mobile PCs
BCM5702 Operating Systems
•
Microsoft
®
Windows
®
98, NT 4.0, 2000, XP
•
Linux
®
2.2, 2.4
•
PXE 2.0
Broadcom
®
, the pulse logo,
Connecting everything
®
, and Smart Load Balancing™ 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
© 2005 by BROADCOM CORPORATION. All rights reserved.
5702-PB05-R
01/05/05
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
BOARDCOM [ Broadcom Corporation. ]
