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Introduction: Broadcom 440X Fast Ethernet Controller User's Guide

This chapter provides the following information:

Functional Description

Features

Physical Description

Broadcom Advanced Control Suite


Functional Description

The Broadcom 440X Fast Ethernet Controller connects a PCI workstation to a 10/100 Mbps Ethernet network. The BCM440X adapter or BCM440X LAN on Motherboard is a fully-integrated 10/100 Ethernet MAC/PHY. The MAC also supports management functions including RMON, Ethernet-like MIB, and IEEE802.3M Ethernet MIB.

  Figure 1. The Broadcom 440X Fast Ethernet Controller


Features

The following is a list of the Broadcom 440X Fast Ethernet Controller features for all supported operating systems:


LED Interface

The following table shows the four Ethernet LED outputs that BCM440X provides to indicate Link Integrity (LED0_L), Activity (LED1_L), Speed (LED2_L), and Collision (LED3_L).


Table 1. Ethernet LEDs
LED Description
0 Ethernet Link Integrity: Indicates Ethernet link status. This output is driven low when the link is good.
1 Ethernet Activity: This output is driven low for approximately 80 ms each time there is either transmit or receive activity while in the link pass state.
2 Ethernet Speed: This output is driven low when the Ethernet MAC and PHY are operating in 100BASE-T mode, and disabled when operating in 10BASE-T mode.
3 Ethernet Collision: This signal is stretched to make it suitable for LED display and driven low to indicate a collision.

 


Broadcom Advanced Control Suite

The Broadcom Advanced Control Suite is a graphics user interface with the following functions. Refer to "Broadcom Advanced Control Suite " for additional information.


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