I/O Addresses And Resources - Intel MB440LX System Installation Manual

I/O Addresses and Resources

The I/O map in the following table shows the location in I/O space of all
directly I/O accessible registers.
Address
0000h–000Fh
0020h–0021h
002Eh–002Fh
0040h–0043h
0060h, 0064h
0061h
0070h
0071h
0080h–0081h
0080h–008Fh
0092h
00A0h–00BFh
00C0h–00DFh
00F0h
00F8h–00FFh
0170h–0177h
01F0h–01F7h
0200h–0207h
0220h–022Fh
0238h–023Fh
0278h–027Fh
02E8h–02EFh
02F8h–02FFh
0338h–033Fh
0370h–0375h
0378h–037Fh
03B4h–03BAh
03BCh–03BFh
M440LX Server System Product Guide
Resource
DMA Controller 1
Interrupt Controller 1
Super I/O Index and Data Ports
Programmable Timer
Keyboard Controller
NMI Status & Control Register
NMI Mask (bit 7) & RTC Address (bits 6:0)
Real Time Clock (RTC)
BIOS Timer
DMA Low Page Register
System Control Port A (PC-AT
Interrupt Controller 2
DMA Controller 2
Clear NPX error
x87 Numeric Coprocessor
Secondary Fixed Disk Controller (IDE)
Primary Fixed Disk Controller (IDE)
Game I/O Port
Serial Port A
Serial Port B
Parallel Port 3
Serial Port B
Serial Port B
Serial Port B
Secondary Floppy
Parallel Port 2
Monochrome Display Port
Parallel Port 1 (Primary)
†
control Port)
Continued
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