HP OmniBook XE2-DE HP OmniBook XE Series - Corporate Evaluators Guide - Page 31

System Input/Output Addresses 100-3FF, DMA Channels

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Operating the OmniBook XE2 Software System Resources Valid uses for memory addresses D0000-DBFFF: • Upper memory blocks (UMBs). • PC Card memory windows. System Input/Output Addresses (100-3FF) 170-177 1F0-1F7 220-22F 376 378-37F 388-38B 3B0-3BB 3C0-3DF 3E0-3E1 3F0-3F5 3F6 3F7 3F8-3FF Secondary HDD controller (internal CD-ROM) Internal hard disk Audio for DOS programs Secondary HDD controller (internal CD-ROM) LPT1 (printer port) Sound VGA adapter VGA adapter PCMCIA controller Floppy controller Primary HDD controller Floppy controller COM1 (serial port) DMA Channels 0 Sound record 1 Sound playback 2 Floppy drive 3 LPT1 (ECP parallel port) 4 Cascade 5 Free 6 Free 7 Free 2-15

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Operating the OmniBook XE2
Software System Resources
2-15
Valid uses for memory addresses D0000-DBFFF:
•
Upper memory blocks (UMBs).
•
PC Card memory windows.
System Input/Output Addresses (100-3FF)
170-177
Secondary HDD controller (internal CD-ROM)
1F0-1F7
Internal hard disk
220-22F
Audio for DOS programs
376
Secondary HDD controller (internal CD-ROM)
378-37F
LPT1 (printer port)
388-38B
Sound
3B0-3BB
VGA adapter
3C0-3DF
VGA adapter
3E0-3E1
PCMCIA controller
3F0-3F5
Floppy controller
3F6
Primary HDD controller
3F7
Floppy controller
3F8-3FF
COM1 (serial port)
DMA Channels
0
Sound record
1
Sound playback
2
Floppy drive
3
LPT1 (ECP parallel port)
4
Cascade
5
Free
6
Free
7
Free