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BCM5706
(R)
10/100/1000BASE-T TCP OFFLOAD ENGINE, RDMA, ISCSI/ISER AND ETHERNET CONTROLLER
FEATURES * Single-chip solution for LAN on Motherboard (LOM) and
Network Interface Card (NIC) applications * Integrated 10BASE-T/100BASE-TX/1000BASE-T transceivers * Integrated SerDes (BCM5706S) * Host interfaces - PCI v2.3--32/64 bits, 33/66 MHz - PCI-X v1.0--64 bits, 66/100/133 MHz TCP offload engine * Full "fast Path" TCP offload * Designed for Microsoft's TOE Chimney Architecture iSCSI controller * iSCSI initiator * iSER (iSCSI over RDMA) RDMA controller (RNIC) * RDMA over TCP (iWARP)--RDMAC 1.0 compliant * Hardware-based data placement in application buffers without CPU intervention (for User and Kernel modes) Other performance features * TCP, IP checksum * TCP segmentation * Adaptive interrupts * Message Signal Interrupt (MSI) support Robust manageability * PXE 2.0 remote boot * Alert Standard Format (ASF v1.0) support * Wake-On LAN * IPMI 'pass-through' mode * Statistic gathering (SNMP MIB II, Ethernet like MIB, Ethernet MIB (802.3x, clause 30)) * Comprehensive diagnostic and configuration software suite * ACPI 1.1a compliant--power management Advanced network features * Virtual LANs--802.1q VLAN tagging * Jumbo frames (9 KB) * 802.3x flow control Low-power CMOS design On-chip power circuit controller 400-ball 21x21 mm FBGA package 3.3V I/Os JTAG
SUMMARY OF BENEFITS * Industry's smallest 10/100/1000 TOE solution--power and * *
space optimized for LOM and low-profile NIC applications. Extremely low CPU utilization for TCP/IP applications * Host CPU is free to run application code * Easy integration with Microsoft's TOE Chimney Architecture Accelerated IP-based storage * Lower CPU utilization for file-level storage protocols such as CIFS and NFS * iSCSI functionality with low CPU utilization RDMA support for data placement in application buffers reduces CPU utilization and lowers data transit latencies. The result is improved application performance and faster user response time. Interoperable with: * Broadcom's Gigabit controller family - BCM570x * Existing Ethernet 10/100/1000 network infrastructure Future-proof * Flexible implementation for TCP, iWARP and iSCSI can accommodate specification changes and interoperability issues Performance-focused - optimized for throughput and CPU utilization * Adaptive interrupts * MSI allows interrupt distribution in a multi-CPU host system * Support for PCI-X--allows sufficient bandwidth for wire speed operation Robust and highly manageable * PXE 2.0, ACPI 1.1, Wake-On LAN, ASF 1.0 * Integrated cable testing--link quality, length, pair skew, pair polarity, pair swap * IPMI 'pass-through' capability allows on-board management controllers access to the network in OS-present and OS-absent states Server class reliability, availability and performance features * Link aggregation and load balancing - Switch-dependent * 802.3ad (LACP), generic trunking (GEC/FEC) - Switch and NIC independent * PCI hot plug Low power for zero airflow implementations * Advanced power management Minimal real estate--ideal for LOM * On-chip power circuit controller
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OVERVIEW
RX 10/100/1000 PHY TX
10/100/1000 MAC
Dual Processor
Memory Controller
Buffer Memory
PCI/PCI-X
25 MHz
PLL
Memory
TCP, RDMA, iSCSI Context
TCP, RDMA, iSCSI Code
PCI/PCI-X Bus
LED Control
SMBus
EEPROM Control EEPROM Interface
PLL
PCI Clk
LED Signals
SMB Interface
The BCM5706 provides a fully integrated Layer 4 and Layer 5 solution - TCP/IP, RDMA and iSCSI 1.0/iSER along with a complete 10/100/ 1000BASE-T Gigabit Ethernet, IEEE 802.3 compliant Media Access Control (MAC) and Physical Layer Transceiver solution for high performance network applications. By itself the BCM5706 provides a complete single-chip Gigabit Ethernet NIC with a TCP/IP Offload Engine, RDMA NIC (RNIC), iSCSI 1.0/iSER HBA or LOM solution. The BCM5706 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, therefore relieving the host CPU from these time-consuming operations. On the receive path, the BCM5706 processes the frame up to the highest layer supported present in it, e.g., the BCM5706 processes the frame for RDMA when the frame is an RDMA frame. With the appropriate configuration, the BCM5706 can simultaneously support any two of the following three functions: * RDMA Network Interface Controller (RNIC) * iSCSI or iSER Host Bus Adapter * TOE Chimney enabled network accelerator
Target Applications of the BCM5706 * Gigabit Ethernet NICs and LAN-on Motherboard (LOM) * ISCSI 1.0 / iSER Host Bus Adapters (HBA) * RDMA Network Interface Card (RNIC)
Network Interface Cards (NIC) designs 10/100/1000 PCI 2.3 Adapters
LAN on Motherboard (LOM) designs 10/100/1000 PCI 2.3 LOM
BASE-T 1000 BASE-SX 1000 BASE-LX
PCI-X v1.0 Adapters PCI 2.3 Adapters PCI-X v1.0 Adapters PCI 2.3 Adapters PCI-X v1.0 Adapters
BASE-T 1000 BASE-SX 1000 BASE-LX
PCI-X v1.0 LOM PCI 2.3 LOM PCI-X v1.0 LOM PCI 2.3 LOMPCI PCI-X v1.0 LOM
Broadcom(R), the pulse logo, and Connecting everything(R) 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.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2004 by BROADCOM CORPORATION. All rights reserved. 5706-PB04-R 03/31/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

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