Product Description
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1.10 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 supports the 82547EI
• PCI power management
Supports ACPI technology
Supports LAN wake capabilities
1.10.1 10/100 Mbits/sec LAN Subsystem (Optional)
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
1.10.1.1 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
1.10.1.2 RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (shown in Figure 10 below).
Green LED
Yellow LED
OM15076
Figure 10. LAN Connector LED Locations
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