HP Deskpro EX P866 Specifications Page 90
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Chapter 4 System Support
Compaq Deskpro EX Series of Personal Computers
First Edition - August 2000
4-38
4.9 REGISTER MAP AND MISCELLANEOUS FUNCTIONS
This section contains the system I/O map and information on general-purpose functions of the ICH
and I/O controller.
4.9.1 SYSTEM I/O MAP
Table 4-17 lists the fixed addresses of the input/output (I/O) ports.
Table 4-17. System I/O Map
Table 4-17.
System I/O Map
I/O Port Function
0000..001Fh DMA Controller 1
0020..002Dh Interrupt Controller 1
002E, 002Fh Index, Data Ports to LPC47B357 I/O Controller (primary)
0030..003Dh Interrupt Controller
0040..0042h Timer 1
004E, 004Fh Index, Data Ports to LPC47B357 I/O Controller (secondary)
0050..0052h Timer / Counter
0060..0067h Microcontroller, NMI Controller (alternating addresses)
0070..0077h RTC Controller
0080..0091h DMA Controller
0092h Port A, Fast A20/Reset Generator
0093..009Fh DMA Controller
00A0..00B1h Interrupt Controller 2
00B2h, 00B3h APM Control/Status Ports
00B4..00BDh Interrupt Controller
00C0..00DFh DMA Controller 2
00F0h Coprocessor error register
0170..0177h IDE Controller 2 (active only if standard I/O space is enabled for primary drive)
01F0..01F7h IDE Controller 1 (active only if standard I/O space is enabled for secondary drive)
0278..027Fh Parallel Port (LPT2)
02E8..02EFh Serial Port (COM4)
02F8..02FFh Serial Port (COM2)
0370..0377h Diskette Drive Controller Secondary Address
0376h IDE Controller 2 (active only if standard I/O space is enabled for primary drive)
0378..037Fh Parallel Port (LPT1)
03B0..03DFh Graphics Controller
03BC..03BEh Parallel Port (LPT3)
03E8..03EFh Serial Port (COM3)
03F0..03F5h Diskette Drive Controller Primary Addresses
03F6h IDE Controller 1 (active only if standard I/O space is enabled for sec. drive)
03F8..03FFh Serial Port (COM1)
04D0, 04D1h Interrupt Controller
0678..067Fh Parallel Port (LPT2)
0778..077Fh Parallel Port (LPT1)
07BC..07BEh Parallel Port (LPT3)
0CF8h PCI Configuration Address (dword access only )
0CF9h Reset Control Register
0CFCh PCI Configuration Data (byte, word, or dword access)
NOTE:
Assume unmarked gaps are unused, reserved, or used by functions that employ variable I/O
address mapping. Some ranges may include reserved addresses.
- Technical Reference Guide 1
- Reader Feedback 5
- Technical Reference Guide 8
- TABLE OF CONTENTS 9
- First Edition –- August 2000 10
- LIST OF FIGURES 14
- LIST OF TABLES 16
- Chapter 1 19
- INTRODUCTION 19
- Review Copy – August 2000 20
- Chapter 1 Introduction 24
- Table 1-1 24
- Chapter 2 25
- SYSTEM OVERVIEW 25
- 2.2 FEATURES AND OPTIONS 26
- 2.2.1 STANDARD FEATURES 26
- 2.2.2 OPTIONS 27
- 2.3 MECHANICAL DESIGN 28
- 2.3.1 CABINET LAYOUTS 29
- 2.3.1.1 Front Views 29
- 2.3.1.2 Rear Views 30
- 2.3.2 CHASSIS LAYOUTS 31
- 2.3.3 BOARD LAYOUT 33
- 2.4 SYSTEM ARCHITECTURE 34
- 2.4.1 PROCESSORS 36
- 2.4.1.1 Celeron Processor 37
- 2.4.2 CHIPSET 38
- 2.4.3 SUPPORT COMPONENTS 38
- 2.4.4 SYSTEM MEMORY 39
- 2.4.5 MASS STORAGE 39
- 2.4.8 GRAPHICS SUBSYSTEM 40
- 2.4.9 AUDIO SUBSYSTEM 41
- 2.5 SPECIFICATIONS 41
- Chapter 2 System Overview 44
- Chapter 3 45
- PROCESSOR/ 45
- MEMORY SUBSYSTEM 45
- 3.2 PROCESSOR 46
- 3.2.1 CELERON PROCESSOR 46
- 3.2.2 PENTIUM III PROCESSOR 47
- 3.2.3 PROCESSOR UPGRADING 48
- 3.3 MEMORY SUBSYSTEM 49
- 3.4 SUBSYSTEM CONFIGURATION 52
- Chapter 4 53
- SYSTEM SUPPORT 53
- 4.2 PCI BUS OVERVIEW 54
- 4.2.1 PCI BUS TRANSACTIONS 55
- 4.2.1.2 Configuration Cycles 55
- 4.2.7 PCI CONFIGURATION 60
- 4.2.8 PCI CONNECTOR 61
- 4.3 AGP BUS OVERVIEW 62
- 4.3.1 BUS TRANSACTIONS 62
- 4.3.1.1 Data Request 63
- 4.3.1.2 Data Transfers 63
- AGP 2X Transfers 64
- AGP 4X Transfers 64
- 4.3.2 AGP CONFIGURATION 65
- 4.3.3 AGP CONNECTOR 66
- 4.4 SYSTEM RESOURCES 67
- 4.4.1 INTERRUPTS 67
- 4.4.1.1 Maskable Interrupts 67
- 8259 Mode 68
- APIC Mode 68
- NMI- Generation 69
- SMI- Generation 70
- 4.4.2 DIRECT MEMORY ACCESS 71
- 4.4.2.1 DMA Page Registers 72
- 4.6.1 CLEARING CMOS 75
- 4.7 SYSTEM MANAGEMENT 85
- 4.7.1 SECURITY FUNCTIONS 85
- 4.7.1.1 Power-On Password 85
- 4.7.1.2 Setup Password 85
- 4.7.1.3 Cable Lock Provision 86
- 4.7.2 POWER MANAGEMENT 87
- 4.7.3 SYSTEM STATUS 87
- 4.7.4 TEMPERATURE SENSING 88
- 4.8 SYSTEM COOLING 89
- 4.9.1 SYSTEM I/O MAP 90
- Chapter 5 95
- INPUT/OUTPUT INTERFACES 95
- 5.2.2 IDE CONNECTOR 97
- 5.3 DISKETTE DRIVE INTERFACE 98
- Table 5-5 100
- 5.4 SERIAL INTERFACE 102
- 5.4.1 RS-232 INTERFACE 102
- 5.5 PARALLEL INTERFACE 104
- First Edition - August 2000 105
- 5.6.3.1 8042 Configuration 110
- 5.6.3.2 8042 Control 111
- Table 5-15 112
- 1 DATA Data 4 + 5 VDC Power 113
- 5.7.1 USB DATA FORMATS 114
- 5.7.2 USB PROGRAMMING 116
- 5.7.2.1 USB Configuration 116
- 5.7.2.2 USB Control 116
- 5.7.3 USB CONNECTOR 117
- 5.7.4 USB CABLE DATA 117
- 5.8 AUDIO SUBSYSTEM 118
- 5.8.1 FUNCTIONAL ANALYSIS 118
- 5.8.2 AC97 AUDIO CONTROLLER 120
- 5.8.3 AC97 LINK BUS 120
- 5.8.4 AUDIO CODEC 121
- 5.8.5 AUDIO PROGRAMMING 122
- 5.8.5.1 Audio Configuration 122
- 5.8.5.2 Audio Control 122
- 5.8.6 AUDIO SPECIFICATIONS 123
- 5.9 NETWORK SUPPORT 124
- 5.9.1 PCI VER. 2.2 SUPPORT 124
- 5.9.2 ALERT-ON-LAN SUPPORT 124
- First Edition – August 2000 128
- Chapter 6 129
- EMBEDDED GRAPHICS SUBSYSTEM 129
- 6.2.1 DISPLAY MODES 132
- 6.5 MONITOR CONNECTOR 134
- Chapter 7 135
- POWER and SIGNAL 135
- DISTRIBUTION 135
- 7.1.1 POWER SUPPLY ASSEMBLY 136
- 7.1.2 POWER CONTROL 137
- 7.1.2.1 Power Button 137
- 7.1.2.3 Wake Up Events 138
- 7.2 POWER DISTRIBUTION 139
- 7.3 SIGNAL DISTRIBUTION 142
- Chapter 8 145
- BIOS ROM 145
- 8.2 ROM FLASHING 146
- 8.2.1 UPGRADING 146
- 8.3 BOOT FUNCTIONS 148
- 8.3.1 BOOT DEVICE ORDER 148
- 8.3.4 BOOT ERROR CODES 149
- 8.4 SETUP UTILITY 150
- Chapter 8 BIOS ROM 152
- Continued 153
- 8.5.1 SYSTEM ID AND ROM TYPE 158
- 8.5.2 EDID RETRIEVE 158
- 8.5.3 TEMPERATURE STATUS 159
- 8.5.4 DRIVE FAULT PREDICTION 159
- 8.6 PNP SUPPORT 159
- 8.6.1 SMBIOS 160
- 8.7.1 INDEPENDENT PM SUPPORT 161
- System Timer 161
- IDE Hard Drive Timer 161
- 8.7.2 ACPI SUPPORT 163
- 8.7.3 APM 1.2 SUPPORT 163
- 8.7.3.1 Staying Awake in APM 165
- System/Hard Drive Standby 166
- System Suspend 166
- System OFF 167
- 8.7.3.3 Waking Up in APM 167
- 8.8 USB LEGACY SUPPORT 167
- Appendix A 169
- ERROR MESSAGES AND CODES 169
- Compaq Personal Computers 180
- Appendix B 181
- ASCII CHARACTER SET 181
- Compaq Personal Computers 182
- Appendix C 183
- KEYBOARD 183
- C.2 KEYSTROKE PROCESSING 184
- Changed - July 2000 186
- C.2.3 KEYBOARD LAYOUTS 187
- Appendix C Keyboard 188
- Compaq Personal Computers 188
- C.2.4 KEYS 190
- C.2.4.3 Windows Keystrokes 191
- C.2.5 KEYBOARD COMMANDS 193
- C.2.6 SCAN CODES 193
- Continued 195
- 196
- C.3 CONNECTORS 198
- Appendix D 199
- COMPAQ/NVIDIA VANTA LT 199
- AGP GRAPHICS CARD 199
- D.2 FUNCTIONAL DESCRIPTION 200
- D.3 DISPLAY MODES 201
- D.6 CONNECTORS 203
- D.6.1 MONITOR CONNECTOR 203
- Appendix E 205
- E.2 FUNCTIONAL DESCRIPTION 206
- E.3 DISPLAY MODES 207
- E.5 MONITOR CONTROL 208
- E.6 CONNECTORS 209
- E.6.2 MONITOR CONNECTOR 209
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