O V ERVI EW

®

Phone: 949-450-8700

Fax: 949-450-8710

E-mail: info@broadcom.com

Web: www.broadcom.com

BROADCOM CORPORATION

16215 Alton Parkway, P.O. Box 57013

Irvine, California 92619-7013

© 2006 by BROADCOM CORPORATION. All rights reserved.

5708S-PB06-R

10/10/06

the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries

and/or the EU. Any other trademarks or trade names mentioned are the property of their respective

owners.

The BCM5708S provides a fully integrated Layer 4 and Layer 5 solution

– TCP/IP, RDMA, and iSCSI along with a complete 1000/2500BASE-X

Gigabit Ethernet, IEEE 802.3 compliant Media Access Control (MAC),

and Physical Layer Transceiver solution for high performance network

applications. By itself, the BCM5708S provides a complete single-chip

Gigabit Ethernet NIC with a TCP/IP Offload Engine, RDMA NIC

(RNIC), iSCSI HBA, or LOM solution.

The BCM5708S is different from other network controllers because it

can process the TCP/IP and relevant L5 protocols on data directly from

the application buffers on the host, thereby relieving the host CPU from

these time-consuming operations. On the receive path, the BCM5708S

processes the frame up to the highest layer supported present in it, for

example, the BCM5708S processes the frame for RDMA when the

frame is an RDMA frame.

With the appropriate configuration, the BCM5708S can simultaneously

support the following three functions:

• RDMA network interface controller (RNIC)

• iSCSI host bus adapter

• TOE chimney-enabled network accelerator

Target Applications of the BCM5708S

• Gigabit Ethernet NICs and LAN-on Motherboard (LOM)

• 2.5 Gigabit Ethernet Server Blade Applications

• ISCSI Host Bus Adapters (HBA)

• RDMA network interface card (RNIC)

RX

TX

Clock

PLL

LED Control

LED Signals

SMB Interface

SFLASH Interface

SMBus

SFLASH

Control

UMP

UMP Interface

1000/2500

SerDes

10/100/1000/2500

MAC

Buffer

Memory

x4

TCP/IP

Offload

Engine

iSCSI

Protocol

Offload

RDMA

Protocol

Engine

BASE-X

BASE-SX/LX

PCI Express x4 NIC

PCI Express

x4, x2, or x1 LOM

Network Interface Cards (NIC) designs

LAN on Motherboard (LOM) designs

1000/2500

1000