BCM5705M
®
10/100/1000BASE-T CONTROLLER WITH INTEGRATED TRANSCEIVER
FEATURES
SUMMARY OF BENEFITS
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Single-chip device for mobile LAN on Motherboard (LOM) or
Network Interface Card (NIC) applications
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Integrated 10/100/1000BASE-T transceiver
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10/100/1000BASE-T triple-speed MAC
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PCI v2.2, 32-bit/33-MHz host interface
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High-speed RISC core with 16-KB caches
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SMBus 2.0 controller
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On-chip power circuit controller and Wake on LAN power
switching circuit
Advanced power management
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ACPI compliance
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Situation-sensitive features reduce power consumption
Performance features
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TCP, IP, UDP checksum
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Microsoft
®
large send
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TCP segmentation
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CPU task offload
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Adaptive interrupts
Robust manageability
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Wake on LAN
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Out-of-Box mode WOL
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PXE 2.0 remote boot
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Alert Specification Forum–ASF 1.0 support
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Statistic gathering (SNMP MIB II, Ethernet-like MIB, Ethernet
MIB (802.3x, clause 30))
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Comprehensive diagnostic and configuration software suite
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ACPI 1.1a complaint–multiple power modes
Advanced network features
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Virtual LANs–802.1q VLAN tagging; supports 64 VLANs
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802.3x flow control
Advanced network features
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Cable analyzer features detect cabling problems
3.3V I/Os (5V tolerant)
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Industry’s smallest 10/100/1000 MAC+PHY solution
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Optimized for LOM and NIC applications
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Enables small form factor PCs
Ultra-low power and intelligent power management to
dramatically extend battery life
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0.13-mm CMOS design allows industry’s lowest power
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Advanced situation-sensitive power management features
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Power is continually reduced to the minimum needed
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Adapts to usage model
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Maximizes battery life and enables smaller mobile PCs
Enables desktop PC products for all segments
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Pin-compatible with 5705FE, a 10/100 companion chip
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Allows one board layout for both gigabit and Fast Ethernet
applications
Completely backward compatible
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With existing 10/100 network infrastructure
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With existing PCI-based desktop and mobile platforms
Futureproof with flexible firmware architecture
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Flexible firmware adapts to changing standards
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Wirespeed custom packet filtering via on-board CPUs
Power optimized through reduced CPU utilization
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Adaptive interrupts minimize the calls to PC’s CPU
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TCP/IP offloads reduce CPU burden significantly
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Reduces power consumption of PC processor
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Allows use of lower power/performance PC processor
Cable analyzer tests for network cable issues
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Customers can field-test using self-diagnostics
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Reduce customer calls and returns, reducing costs dramatically
Robust and highly manageable
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PXE 2.0, ACPI 1.1, WOL
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Integrated cable testing—link quality, length, pair skew,
pair polarity, pair swap
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Flexible ASF 1.0
Space savings for LOM
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196-pin HBGA package
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No external memory
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Integrated power circuitry reduces BOM costs
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JTAG
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OVERVIEW
RX
10/100/1000
PHY
TX
10/100/1000
MAC
Buffer
Memory
Memory
Controller
Processor
PCI
25 MHz
PLL
Memory
PCI
Bus
LED Control
SMBus
EEPROM
Control
PLL
PCI
Clk
LED Signals
SMB Interface EEPROM Interface
The BCM5705M is a fully integrated 10/100/1000BASE-T Gigabit
Ethernet media access control and physical layer transceiver solution for
high-performance network applications. The BCM5705M combines a
triple-speed, IEEE 802.3-compliant media access controller (MAC), PCI
bus interface, on-chip buffer memory, and integrated physical layer
transceiver in a single device. It is fabricated in a low-voltage 0.13-mm
CMOS process, providing an ultra-low power solution. By itself the
BCM5705M provides a complete single-chip Gigabit Ethernet NIC or
LOM solution.
The BCM5705M includes a 10/100/1000-Mbps Ethernet MAC with full/
half-duplex capability at all speeds. 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 device provides three host interfaces for mobile applications: PCI
v2.2, MiniPCI, and Cardbus. Also integrated is an on-chip memory
buffer for stand-alone operation. An embedded high-performance
processor enables 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 are included to make the device even more user-friendly.
A unique integrated cable analyzer feature allows an end user to self-
diagnose any issues with the network cabling that could be affecting the
host machine. A link quality indicator LED and a GUI application give
installers an instant visual indication of a problem, 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 BCM5705M is also optimized to extend battery life. Several power
management enhancements are included that allow minimum usage of
battery power.
Target applications of the BCM5705M
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Mobile PC NIC
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Mobile PC LOM
Software drivers available
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Windows
®
98, NT, 2000, XP
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Linux
®
2.2, 2.4
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
© 2005 by BROADCOM CORPORATION. All rights reserved.
5705M-PB03-R
01/05/05
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
Real-time operating system RTOS
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