B-4
Interrupt Request/PCI IRQ Device/I/O Port Address Assignments
I/O Port Address Assignments
Table B-3 lists the I/O port address assignments. In Table B-3 the addresses are
listed in hexadecimal notation and the I/O port address of a PCI device is set
according to its type and number.
Table B-3. I/O Port Address Assignments
Address
Item
00
-
1F
8-bit DMA control register
20
-
21
Master 8259 programming interface
2E
-
2F
Configuration
40
-
43
8254 programming interface
60
Keyboard/mouse
61
NMI status register
64
Keyboard/mouse
70
-
71
NMI enable register/real-time clock
80
-
8F
16-bit DMA control register
A0
-
A1
Slave 8259 programming interface
C0
-
DF
DMA controller pageregister
E0
-
E9
Base address register
F0
Register IRQ 13
F1
-
FF
Logical device configuration
170 - 177 or BAR2
EDMA2 compatible mode primary command block register
1F0 - 1F7 or BAR0
EDMA2 compatible mode secondary command block register
278
-
27F
(Parallel port 3)
2E8
-
2EF
(Serial port)
2F8
-
2FF
Serial port 2
376
EDMA2 compatible mode secondary command block register
370
-
377
(Floppy disk drive 2), IDE 2
378
-
37F
(Parallel port 2)
3B0
-
3BB
VGA
3BC
-
3BF
Parallel port 1
3C0
-
3DF
VGA
3E8
-
3EF
(Serial port)
3F6
or
BAR3
EDMA2 compatible mode primary command block register
3F0
-
3F7
(Floppy disk drive 2), IDE 1
3F8
-
3FF
Serial port 1
Summary of Contents for Express5800/180Ra-7
Page 1: ... U s e r s G u i d e EXPRESS5800 180Ra 7 ...
Page 2: ...xxx ...
Page 3: ... U s e r s G u i d e EXPRESS5800 180Ra 7 ...
Page 10: ...viii Contents ...
Page 94: ...3 28 Configuring Your System ...
Page 134: ...4 40 Upgrading Your System A B C Figure 4 43 Recabling the SCSI Interface Cable ...
Page 166: ...4 72 Upgrading Your System ...
Page 206: ...5 40 Problem Solving ...
Page 207: ...A Specifications Basic System Unit BSU Disk Expansion Unit DEU ...
Page 212: ...A 6 Specifications ...
Page 218: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 229: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 232: ...D 4 ROMPilot BIOS Error Codes ...
Page 242: ...10 Glossary ...
Page 246: ...4 Equipment Log ...
Page 250: ...Index 4 ...
Page 251: ...xx ...
Page 252: ... 456 01516 000 ...