HP BOOK 3000 Valid uses for memory addresses CC000-DFFFF, System Input/Output Addresses 100-3FF

Introduction

Identifying System Resources

Valid uses for memory addresses CC000-DFFFF

∙Upper memory blocks (UMBs).

∙PC Card memory windows.

System Input/Output Addresses (100-3FF)

170-177	Secondary hard disk drive controller (internal CD-ROM)
1F0-1F7	Internal hard disk
200-207	Joystick
220-22F	Crystal sound
376	Secondary hard disk drive 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 hard disk drive controller
3F7	Floppy controller
3F8-3FF	COM1 (serial port)

DMA Channels

0

1

2

3

4

5

6

7

Sound record

Sound playback

Floppy drive

LPT1 (ECP parallel port)

Cascade

Free

Free

Free

1-22