System Specifications
135
System I/O addresses
The following table shows the location in I/O space of all directly
I/O-accessible registers.
Address
Resource
0000h - 000Fh
DMA Controller 1
0010h - 001Fh
DMA Controller 1
0020h - 0021h
Interrupt Controller 1
0022h - 0023h
0024h - 0025h
Interrupt Controller 1
0026h - 0027h
0028h - 0029h
Interrupt Controller 1
002Ah - 002Bh
002Ch - 002Dh
Interrupt Controller 1
002Eh - 002Fh
Super I/O Index and Data Ports
0030h - 0031h
Interrupt Controller 1
0032h - 0033h
0034h - 0035h
Interrupt Controller 1
0036h - 0037h
0038h - 0039h
Interrupt Controller 1
003Ah - 003Bh
003Ch - 003Dh
Interrupt Controller 1
003Eh - 003Fh
0040h - 0043h
Programmable Timers
0044h - 004Fh
0050h - 0053h
Programmable Timers
0054h - 005Fh
0060h, 0064h
Keyboard Controller
0061h
NMI Status and Control Register
0063h
NMI Status and Control Register
0065h
NMI Status and Control Register
0067h
NMI Status and Control Register
8508366.book Page 135 Tuesday, October 23, 2001 11:29 AM
Summary of Contents for 7400
Page 6: ...vi 8508366 book Page vi Tuesday October 23 2001 11 29 AM ...
Page 22: ...14 System Features 8508366 book Page 14 Tuesday October 23 2001 11 29 AM ...
Page 98: ...90 Using the BIOS Setup Utility 8508366 book Page 90 Tuesday October 23 2001 11 29 AM ...
Page 110: ...102 Managing Your System 8508366 book Page 102 Tuesday October 23 2001 11 29 AM ...
Page 132: ...124 Troubleshooting 8508366 book Page 124 Tuesday October 23 2001 11 29 AM ...
Page 148: ...140 System Specifications 8508366 book Page 140 Tuesday October 23 2001 11 29 AM ...
Page 156: ...148 Index 8508366 book Page 148 Tuesday October 23 2001 11 29 AM ...