HP (Hewlett-Packard) 7100 Laptop User Manual


 
1-8 Product Information HP OmniBook 7100
Table 1-8. System Memory
00000 - 9FFFF System memory
A0000 - BFFFF Video
C0000 - CFFFF Video BIOS
D0000 - DBFFF* Free**
DC000*- FFFFF System BIOS
* Approximate boundary.
** Valid uses for memory addresses D0000-DBFFF:
Upper memory blocks (UMBs).
PC card memory windows.
Table 1-9. System Input/Output Addresses (100-3FF)
170-177 Internal CD-ROM drive (secondary IDE controller)
1F0-1F7 Internal hard disk (primary IDE controller)
220-22F Crystal sound
376 Internal CD-ROM drive (secondary IDE controller)
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 Internal hard disk (primary IDE controller)
3F7 Floppy controller
3F8-3FF COM1 (serial port)
Table 1-10. DMA Channels
0 Sound record
1 Sound playback
2 Floppy drive
3 LPT1 (ECP parallel port)
4 Cascade
5Free
6Free
7Free