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I/O Map (continued overleaf)
I/O Address(es)
0000 – 001F
0020 – 0021
0022 – 0023
0024 – 0025
0026 – 0027
0040 – 005F
0060, 0064
0061
0070
0071
0080 – 008F
0092
00A0 – 00BF
00C0 – 00DF
00F0
00F8 – 00FF
0102
0170 – 0177
01F0 – 01F7
0220 – 022F
0238 – 023F
0278 – 027F
02E8 – 02EF
02F8 – 02FF
0338 – 033F
0370 – 0375
0376
0377
0378 – 037F
03B4 – 03BA
03BC – 03BF
03C0 – 03CF
03D4 – 03DA
03E8 – 03EF
03F0 – 03F5
03F6 – 03F7
03F8 – 03FF
0400 – 043F
0461
Resource
DMA controller 1
Interrupt controller 1
EISA bridge configuration space access ports
AIP configuration space access ports
Configuration Space Access Ports
Programmable Timer
Keyboard Controller
NMI Status & Control Register
NMI Mask (bit 7) & RTC Address (bits 6:0)
Real Time Clock (RTC)
DMA Low Page Register
System Control Port A ( PC-AT control Port)
Interrupt Controller 2
DMA Controller 2
Clear NPX error
x87 Numeric Coprocessor
Video Display Controller
Secondary Fixed Disk Controller (IDE)
Primary Fixed Disk Controller (IDE)
Serial Port
Serial Port
Parallel Port 3
Serial Port 2
Serial Port 2
Serial Port 2
Secondary Floppy
Secondary IDE
Secondary IDE/Floppy
Parallel Port 2
Monochrome Display Port
Parallel Port 1 (Primary)
Enhanced Graphics Adapter
Colour Graphics Controller
Serial Port
Floppy Disk Controller
Primary IDE - Sec. Floppy
Serial Port 1 (Primary)
DMA Controller 1, Extended Mode Registers.
Extended NMI / Reset Control
M o t h e r b o a r d
12/3
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