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> ## Introduction: Broadcom NetXtreme® 57XX User Guide

> Functionality and Features

> ### Functionality and Features

> Functional Description

> Features

> Supported Operating Systems

> Network Link and Activity Indication

> #### Functional Description

> Broadcom NetXtreme® Gigabit Ethernet adapters connect a PCI Express™ compliant computer to a Gigabit Ethernet network. The network adapter incorporate a technology that transfers data at a maximum rate of 1 gigabit per second—10 times the rate of Fast Ethernet adapters.

> #### Features

> The following is a list of the Broadcom NetXtreme Gigabit Ethernet adapter features for all supported operating systems:

> - Gigabit Ethernet (IEEE Std 802.3-1999)
> - Logical Link Control (IEEE Std 802.2)
> - Flow Control (IEEE Std 802.3x)
> - Standard Ethernet frame size (1518 bytes)
> - Layer-2 Priority Encoding (IEEE 802.1p)
> - High-speed on-chip RISC processor
> - Adaptive interrupt frequency
> - Up to four classes of service (CoS)
> - Up to four send rings and receive rings
> - Integrated 96 KB frame buffer memory
> - GMI/MII management interface
> - Statistics for SNMP MIB II, Ethernet-like MIB, and Ethernet MIB (IEEE Std 802.3z, Clause 30)
> - Four unique MAC unicast addresses
> - Support for multicast addresses via 128 bits hashing hardware function
> - Serial EEPROM or serial NVRAM flash memory
> - Supports PXE 2.1 specification (Linux Red Hat PXE Server, Windows 2000, Windows Server 2003, Intel APITEST, DOS UNDI, Rembo Technology Auto-Deploy Server, Windows NT 4.0 Remoteboot Server)
> - JTAG support
> - PCI Power Management Interface (v1.1) PCI Express™ v1.0A, x1 or greater
> - ACPI and Wake on LAN support
> - 64-bit BAR support
> - EM64T processor support
> - 3.3 V/1.8 V CMOS with 5V tolerant I/Os
> - Self boot

> ##### Power Management

> Wake on LAN (Magic Packet, Wake Up Frame, specific pattern) is supported at 10/100 Mbps operation only.

> Note: Adapter speed connection when the system is down waiting for a wake-up signal is either 10 Mbps or 100 Mbps, but can return to 1000 Mbps when the system is up and running if connected to a 1000 Mbps capable switch. Systems intending to use Wake on LAN (WOL) should be connected to a switch capable of both 1000 and 10/100 Mbps speeds.

> ##### Adaptive Interrupt Frequency

> The adapter driver intelligently adjusts host interrupt frequency based on traffic conditions, to increase overall application throughput. When traffic is light, the adapter driver interrupts the host for each received packet, minimizing latency. When traffic is heavy, the adapter issues one host interrupt for multiple, back-to-back incoming packets, preserving host CPU cycles.

> ##### Dual DMA Channels

> The PCI interface on Broadcom NetXtreme Gigabit Ethernet adapters contains two independent DMA channels for simultaneous read and write operations.

> ##### 32-Bit or 64-Bit PCI Bus Master

> Compliant with PCI Local Bus Rev 2.3, the PCI interface on Broadcom NetXtreme Gigabit Ethernet adapters is compatible with both 32-bit and 64-bit PCI buses. As a bus master, the adapter requests access to the PCI bus, instead of waiting to be polled.

> ##### ASIC with Embedded RISC Processor

> The core control for Broadcom NetXtreme Gigabit Ethernet adapters resides in a tightly integrated, high-performance ASIC. The ASIC includes a RISC processor. This provides the flexibility to add new features to the card and adapt it to future network requirements through software downloads. This also enables the adapter drivers to exploit the built-in host offload functions on the adapter as host operating systems are enhanced to take advantage of these functions.

> ##### Broadcom Advanced Control Suite 2

> Broadcom Advanced Control Suite 2 (BACS2) is an integrated utility that provides useful information about each network adapter that is installed in your system. The BACS2 utility also enables you to perform detailed tests, diagnostics, and analysis on each adapter, as well as to modify property values and view traffic statistics for each adapter. See "Using BACS2" for detailed information and instructions.

> ### Supported Operating Systems

> Broadcom NetXtreme Gigabit Ethernet adapters have software support for the following operating systems:

> - Microsoft® Windows® (32-bit and 64-bit extended)
> - Microsoft Vista
> - Linux® (32-bit and 64-bit extended)
> - MS-DOS®
> - NetWare®

> ### Network Link and Activity Indication

> The state of the network link and activity is indicated by the port LEDs adjacent to the RJ-45 connector, as described in Table 1. Broadcom Advanced Control Suite 2 also provides information about the status of the network link and activity (see "Vital Sign").

> Table 1: Network Link and Activity Indicated by the Port LEDs
> Port LED | LED Appearance | Network State
> --- | --- | ---
> Link LED | Off | No link (cable disconnected)
> Continuously illuminated | Link
> Activity LED | Off | No network activity
> Illuminated and blinking | Network activity

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