155
Table 51.
System I/O Addresses (continued)
Address(es)
Resource
Device
Notes
0077h
RTC Data
PIIX4E
Aliased from 0071h
0080h - 008Fh
DMA Low Page Register
PIIX4E
0090h - 0091h
DMA Low Page Register (aliased)
PIIX4E
0092h
System Control Port A (PC-AT
control Port) (this port not aliased in
DMA range)
PIIX4E
0093h - 009Fh
DMA Low Page Register (aliased)
PIIX4E
0094h
Video Display Controller
00A0h - 00A1h
Interrupt Controller 2
PIIX4E
00A4h - 00A15
Interrupt Controller 2 (aliased)
PIIX4E
00A8h - 00A19
Interrupt Controller 2 (aliased)
PIIX4E
00Ach - 00Adh
Interrupt Controller 2 (aliased)
PIIX4E
00B0h - 00B1h
Interrupt Controller 2 (aliased)
PIIX4E
00B2h
Advanced Power Management
Control
PIIX4E
00B3h
Advanced Power Management
Status
PIIX4E
00B4h - 00B5h
Interrupt Controller 2 (aliased)
PIIX4E
00B8h - 00B9h
Interrupt Controller 2 (aliased)
PIIX4E
00BCh -
00BDh
Interrupt Controller 2 (aliased)
PIIX4E
00C0h -
00DFh
DMA Controller 2
PIIX4E
00F0h
Clear NPX error
Resets IRQ13
00F8h - 00FFh
x87 Numeric Coprocessor
0102h
Video Display Controller
0170h - 0177h
Secondary Fixed Disk Controller
(IDE)
PIIX4E
Not used
01F0h - 01F7h
Primary Fixed Disk Controller (IDE)
PIIX4E
0200h - 0207h
Game I/O Port
Not used
0220h - 022Fh
Serial Port A
0238h - 023Fh
Serial Port B
0278h - 027Fh
Parallel Port 3
02E8h - 02Efh
Serial Port B
02F8h - 02FFh
Serial Port B
0338h - 033Fh
Serial Port B
0370h - 0375h
Secondary Diskette
0376h
Secondary IDE
0377h
Secondary IDE/Diskette
0378h - 037Fh
Parallel Port 2
03B4h - 03Bah
Monochrome Display Port
03BCh -
03BFh
Parallel Port 1 (Primary)
continued
Summary of Contents for SC450NX - Server Platform - 0 MB RAM
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