Intel Pentium III Processor/840, Manual, Page: 4 / 151

iv Intel
®
Pentium
®
III Processor/840 Development Kit Manual
Contents
3.3.17 USB Port ...........................................................................................3-7
3.3.18 IDE Support.......................................................................................3-8
3.3.19 Keyboard/Mouse ...............................................................................3-8
3.3.20 POST Code Display ..........................................................................3-8
3.3.21 Clock Generation...............................................................................3-8
3.3.21.1 System Clocks .....................................................................3-8
3.3.22 Interrupt Map .....................................................................................3-9
3.3.23 Memory Map .....................................................................................3-9
3.4 Power Management Features..........................................................................3-10
3.4.1
ACPI 1.0 Support ............................................................................3-10
3.4.2 ACPI 1.0 System States and Power States ....................................3-10
3.4.3 ACPI 1.0 Wake-Up Events ..............................................................3-11
3.5 APM 1.2 Support..............................................................................................3-11
3.6 Label Requirements .........................................................................................3-11
3.7 Battery Requirements ......................................................................................3-11
3.8 Mechanical Considerations ..............................................................................3-11
3.8.1
Motherboard Dimensions ................................................................3-11
3.8.2 Board Layout ...................................................................................3-12
3.8.3 Mounting Hole Location Considerations..........................................3-12
3.8.4 Back Panel I/O Connector Layout ...................................................3-12
3.9 Power LED Status............................................................................................3-12
4 Hardware Reference
..............................................................................................4-1
4.1 Thermal Management ........................................................................................4-1
4.2 In-Target Probe (ITP) Debugger Port.................................................................4-1
4.3 Post Code Display..............................................................................................4-1
4.4 WTX Power Supply ............................................................................................4-1
4.5 PCI Expansion Slots ..........................................................................................4-2
4.6 PCI Device Mapping ..........................................................................................4-2
4.7 PCI64 Device Mapping ......................................................................................4-2
4.8 Connector Pinouts..............................................................................................4-3
4.8.1
WTX Power Connector......................................................................4-3
4.8.2 ITP Debugger Connector ..................................................................4-5
4.8.3 Dual Stacked USB Connector ...........................................................4-5
4.8.4 PS/2-Style Mouse and Keyboard Connectors...................................4-6
4.8.5 Parallel Port Connector .....................................................................4-6
4.8.6 Serial Ports........................................................................................4-7
4.8.7 Audio/MIDI/Game Port Connectors...................................................4-7
4.8.8 LAN Connector..................................................................................4-8
4.8.9 Front Panel I/O Connectors...............................................................4-9
4.8.10 Processor Fans ...............................................................................4-10
4.8.11 Chassis Fans...................................................................................4-10
4.8.12 ATAPI Audio Connectors ................................................................4-11
4.8.13 IDE Connector.................................................................................4-11
4.8.14 Floppy Drive Connector...................................................................4-12
4.8.15 32-Bit PCI Slot Connector ...............................................................4-13
4.8.16 64-Bit PCI Slot Connector ...............................................................4-14
4.9 AGP Connector ................................................................................................4-15
4.10 Jumpers ...........................................................................................................4-17
4.10.1
P1/P0 Present Override (J10/J42) ..................................................4-18