Datasheet

Contents

1 Product Description

1.1 Overview........................................................................................ 10

1.1.1 Feature Summary ................................................................ 10

1.1.2 Board Layout ....................................................................... 12

1.1.3 Block Diagram ..................................................................... 14

1.2 Online Support................................................................................ 15

1.3 Processor ....................................................................................... 15

1.4 System Memory .............................................................................. 16

1.4.1 Memory Configurations ......................................................... 18

1.5 Intel

946GZ Express Chipset ........................................................... 21

1.5.1 Intel 946GZ Graphics Subsystem............................................ 21

1.5.2 USB ................................................................................... 23

1.5.3 Serial ATA Interfaces ............................................................ 24

1.5.4 Parallel IDE Interface ............................................................ 25

1.5.5 Real-Time Clock, CMOS SRAM, and Battery .............................. 25

1.6 Legacy I/O Controller....................................................................... 26

1.6.1 Serial Port........................................................................... 26

1.6.2 Parallel Port......................................................................... 26

1.6.3 Diskette Drive Controller ....................................................... 26

1.6.4 Keyboard and Mouse Interface ............................................... 26

1.7 Audio Subsystem............................................................................. 27

1.7.1 Audio Subsystem Software .................................................... 28

1.7.2 Audio Connectors and Headers ............................................... 28

1.8 LAN Subsystem............................................................................... 29

1.8.1 Intel

82562GX PLC Device ................................................... 29

1.8.2 LAN Subsystem Software....................................................... 29

1.8.3 RJ-45 LAN Connector with Integrated LEDs .............................. 29

1.9 Hardware Management Subsystem .................................................... 30

1.9.1 Hardware Monitoring and Fan Control...................................... 30

1.9.2 Fan Monitoring..................................................................... 30

1.9.3 Chassis Intrusion and Detection.............................................. 30

1.9.4 Thermal Monitoring .............................................................. 31

1.10 Power Management ......................................................................... 32

1.10.1 ACPI .................................................................................. 32

1.10.2 Hardware Support ................................................................ 34

2 Technical Reference

2.1 Memory Map................................................................................... 39

2.1.1 Addressable Memory............................................................. 39

2.2 DMA Channels................................................................................. 41

2.3 Fixed I/O Map ................................................................................. 42

2.4 PCI Configuration Space Map ............................................................ 43

2.5 Interrupts ...................................................................................... 44