Datasheet

Product Description

1.11 LAN Subsystem

The LAN subsystem consists of the following:

• Physical layer interface device. As a manufacturing option, the board includes one of the

following Platform LAN Connect (PLC) devices:

 Intel 82562EZ PLC for 10/100 Mbits/sec Ethernet LAN connectivity

 Intel 82547EI PLC for Gigabit (10/100/1000 Mbits/sec) Ethernet LAN connectivity

• RJ-45 LAN connector with integrated status LEDs

Additional features of the LAN subsystem include:

• PCI bus master interface

• CSMA/CD protocol engine

• Serial CSMA/CD unit interface that supports the 82562EZ

• 8-bit CSA port interface that support the 82547EI

• PCI power management

 Supports ACPI technology

 Supports LAN wake capabilities

1.11.1 10/100 Mbits/sec LAN Subsystem

The 10/100 Mbits/sec LAN subsystem includes the ICH5 (with its CSMA/CD interface), the

Intel 82562EZ PLC, and an RJ-45 LAN connector with integrated status LEDs

1.11.1.1 Intel

82562EZ Physical Layer Interface Device

The Intel 82562EZ provides the following functions:

• Basic 10/100 Ethernet LAN connectivity

• Full device driver compatibility

• Programmable transit threshold

• Configuration EEPROM that contains the MAC address

1.11.1.2 RJ-45 LAN Connector with Integrated LEDs

Two LEDs are built into the RJ-45 LAN connector (shown in Figure 14 below).

Green LED

Yellow LED

OM15076

Figure 14. LAN Connector LED Locations