I/O Addresses - Intergraph InterServe 8000 System Reference Manual

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I/O Addresses

The primary system I/O devices are:
u
Adaptec AIC-7860 Ultra SCSI
u
DEC 21050 PCI-to-PCI Bridge
u
Intel 82093AA I/O Advanced Programmable Interrupt Controller (I/O APIC)
u
Intel 82454 PCIset Orion PCI Bridge (OPB)
u
Intel 82452, 82453 PCIset Orion Memory Controllers (OMC)
u
Intel 82379AB System I/O-APIC PCI-to-ISA Bridge
u
Matrox MGA-2064W G95 graphics
u
Standard Microsystems FDC37C932 Super I/O Controller
The following table lists a small subset of the reserved I/O addresses used in the system.
Address Range
0000 - 000F
0020 - 0021
0022 - 0023
0040 - 0043
0060 - 0064
0070 - 0071
0078 - 007B
0080 - 0091
0092 - 0092
0093 - 009F
00A0 - 00A1
00B2 - 00B3
00C0 - 00DF
00F0 - 00F1
01F0 - 01F8
Description
DMA Controller 1 (DMA1)
registers
Interrupt Controller 1
(INT1)
System Configuration
Timer Counter 1
Keyboard (FDC37C932),
NMI Status
Real Time Clock
(FDC37C932)
BIOS Timer
DMA Page Registers
System Control Port
DMA Page Registers
Interrupt Controller 2
(INT2)
Advanced Power
Management Control/Status
Ports
DMA Controller 2 (DMA2)
Registers
Clear/Reset Math
Coprocessor
IDE Hard Disk Controller
(FDC37C932)
Address Range Description
0278 - 027F Parallel Port LPT2
02E8 - 02EF Serial Port COM4
02F8 - 02FF Serial Port COM2
(FDC37C932)
0370 - 0377 Secondary Floppy Disk
Controller
0378 - 037F Parallel Port LPT1
(FDC37C932)
03B0 - 03BF Monochrome
Display/Printer Adapter
03D0 - 03DF Color/Graphics Monitor
Adapter (CGA/MCGA)
03E8 - 03EF Serial Port COM3
03F0 - 03F7 Floppy Controller
(FDC37C932)
03F8 - 03FF Serial Port COM1
(FDC37C932)
0480 - 048F DMA High Page Registers
04D0 - 04D1 Interrupt Controller Edge
Level Control
0CF8 - 0CFF PCI Configuration Space
Access
B000 - DFFF Typical PCI Adapter Usage