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 Express5800/140Hb
Page 1: ... S e r v i c e G u i d e EXPRESS5800 140Hb ...
Page 2: ......
Page 3: ... S e r v i c e G u i d e EXPRESS5800 140Hb ...
Page 10: ...viii Contents ...
Page 18: ...xvi Using This Guide ...
Page 48: ...1 30 System Overview ...
Page 64: ...2 16 Setting Up the System Figure 2 10 Connecting the AC Power Cord to the Server ...
Page 98: ...3 28 Configuring Your System ...
Page 101: ......
Page 176: ...4 76 Disassembly and Reassembly ...
Page 200: ...5 24 Problem Solving ...
Page 201: ...6 Illustrated Parts Breakdown Exploded View Field Replaceable Units ...
Page 211: ...A Technical Specifications Server Unit ...
Page 214: ...A 4 Technical Specifications ...
Page 220: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 231: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 234: ...D 4 ROMPilot BIOS Error Codes ...
Page 235: ...E Connectors Overview External Device Connector Pin Information ...
Page 250: ...10 Glossary ...
Page 256: ...Index 4 ...
Page 257: ...xx ...
Page 258: ... 456 01547 000 ...