Compaq Deskpro 1000 Series of Personal Computers
8-3
Table 8-4
System I/O
I/O Address (Hex) *
System Function (Shipping Configuration)
000 - 00F
8237 DMA Controller #1
020 - 02F
8259A Master Programmable Interrupt Controller
040 - 05F
Programmable Internal Timer
060 - 06F
Keyboard Controller
070 - 071
System CMOS/RTC, also NMI Enable/Disable
080
Manufacture System Check Point Port
081 - 09F
DMA Page Registers
0A0 - 0BF
Second 8259 Programmable Interrupt Controller
0C0 - 0DF
DMA Controller #2
0F0 - 0FF
Numeric Data Processor
170 – 17F
Secondary IDE Controller
1F0 - 1FF
Primary IDE Controller
200
Gameport (only if you have a sound card installed)
201
Gameport (only if you have a sound card installed)
278 - 27F
Third Parallel Port
2E8 - 2EF
COM4 (if you set COM4)
2F8 - 2FF
COM2
370 - 377
Secondary Diskette Controller (if present))
378 - 37F
Second Parallel Port
3B0 - 3BF
Monochrome Display Adapter/Primary Parallel Port
3C0 - 3CF
EGA/VGA Adapter
3D0 - 3DF
Color Graphic Adapter
3E8 - 3EF
COM3 (if you set COM3)
3F0 - 3F7
Primary Diskette Controller
3F8 - 3FF
COM1
04D0 - 04D1
PIC Edge/Level Control Register
0CF8 - 0CFF
PCI Configuration Register
6000 - FFFF
PCI Device I/O Space
*All I/O addresses below 100 are reserved by the chipset even if they are not used.