Datasheet

Intel Desktop Board D925XCV/D925XBC Product Guide

Input/Output (I/O) Controller

The super I/O controller features the following:

• Low pin count (LPC) interface

• One serial port

• One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port

(EPP) support

• Serial IRQ interface compatible with serialized IRQ support for PCI systems

• PS/2-style mouse and keyboard interfaces

• Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive

• Intelligent power management, including a programmable wake up event interface

• PCI power management support

LAN Subsystem

The LAN, with the Intel 82801FR, provides a Fast PCI LAN subsystem. The LAN subsystem

provides the following functions:

• Marvell 10/100/1000 Gigabit Ethernet LAN

• Support for RJ-45 connector with status indicator LEDs

• Programmable transit threshold

• Configurable EEPROM that contains the MAC address

LAN Subsystem Software

For LAN software and drivers, refer to the D925XCV/D925XBC link on Intel’s World Wide Web

site at:

http://support.intel.com/support/motherboards/desktop

RJ-45 LAN Connector LEDs

Table 5 describes the LED states when the board is powered up and the 10/100/1000 Gigabit

Ethernet LAN subsystem is operating.

Table 5. RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs

LED Color LED State Indicates

Off 10 Mbit/sec data rate is selected. Bi-color LED

Green 100 Mbit/sec data rate is selected.

Yellow 1 Gbit/sec data rate is selected.

Off LAN link is not established. Green

On (pulsing) The computer is communicating with another computer on the

LAN.