BCM57781 Broadcom Corp., BCM57781 Datasheet

BCM57781

Manufacturer Part Number

BCM57781

Description

Integrated Gigabit Ethernet Controller

Manufacturer

Broadcom Corp.

Datasheet

1.BCM57781.pdf (2 pages)

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Download datasheet (112Kb)

•

Integrated 10/100/1000BASE-T transceiver

• 10/100/1000BASE-T triple-speed MAC

• Compliant with IEEE standards

• Compliant with IEEE 802.3az draft for Energy Efficient

• State-of-the-art physical layer interface that exceeds IEEE

• On-chip voltage regulation using switching regulator

PCI Express

• x1 PCIe™ v1.1

• Active State Power Management (ASPM) capability

• Message Signaled Interrupt (MSI)

Intelligent power management

• Centralized power management enables easy and efficient

• Innovative implementation that optimizes power consumption

Performance features

• TCP, IP, and UDP Checksum Offload (CSO)

• Receive side scaling (RSS) for multicore client processors

• IPV4 and IPV6 Microsoft

• Interrupt coalescing

• Microsoft Windows

Robust ACPI-compliant WOL

Ethernet™ (EEE)

requirements

control of various power modes

dynamically and transparently, depending on network and

system states

INTEGRATED GIGABIT ETHERNET CONTROLLER

host interface

F E A T U R E S

7 WoL and Proxy support

Large Send Offload (LSO)

BCM57781

•

Brief

Single-chip solution for LAN on motherboard (LOM)

applications

Proven technology built on twelve generations of controller

products

Wirespeed performance increases user performance

• PCI Express provides wirespeed non-blocking throughput.

• TCP/IP checksum offload significantly reduces CPU usage

Extremely low power consumption enables environment-

friendly designs

• Increases battery life in mobile applications and saves energy

• Advanced power management capabilities with ASPM L0s,

• Eliminates false system wake-up with NIC proxy capabilities

• Enables Energy Star

Small package, enabling smaller and more portable designs

• 6 mm x 6 mm, 48-pin QFN package

Lower BOM cost and chip cost, reducing overall cost of

solution

• 65 nm process

• Fully integrated power regulation with minimal external

• On-chip nonvolatile memory that eliminates the need for

and increases network throughput for large file download.

in desktop implementations

L1, and PCIe CLKREQ

discrete component

external memory device

S U M M A R Y O F B E N E F I T S

-compliant platforms

Related parts for BCM57781

BCM57781 Summary of contents

Page 1

... Large Send Offload (LSO) • Interrupt coalescing ® • Microsoft Windows 7 WoL and Proxy support • Robust ACPI-compliant WOL BCM57781 Brief • Single-chip solution for LAN on motherboard (LOM) applications • Proven technology built on twelve generations of controller products • ...

Page 2

... The device combines a triple-speed IEEE 802.3™- compliant media access controller (MAC) with a triple-speed Ethernet transceiver, x1 PCIe bus interface, and on-chip buffer memory in a single device. The BCM57781 is fabricated CMOS process, providing a low-power system solution. The device performs all the physical layer functions for 1000BASE-T, 100BASE-T, and 10BASE-T Ethernet on standard Category 5 UTP cable ...

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