NCR 7460 User Manual - I/o Addresses
Other manuals for 7460:
Manual
Manual is about: Retail Terminal
of
153
3-44 Chapter 3: BIOS Setup
I/O Addresses
The following I/O Address Map applies to the 7460 workstation.
Address
(hex)
Size
Description (Default/Primary
Resource)
Description (Alternate
Configurable Resource)
0
16
DMA Controller
20
8
Interrupt Controller
40
4
System Timer
60
8
Keyboard Controller
70
8
Real Time Clock
80
16
DMA Page Controller
90
8
System Control Port
98
8
Reserved
A0
8
Slave Interrupt Controller
A8
24
Reserved
C0
32
Slave DMA Controller
F0
16
Math Co-Processor
1F0
8
IDE Controller, Channel 1
220
8
COM C or COM D
228
8
COM C or COM D
278
8
LPT2
LPT1
2E8
8
COM D
COM A or COM B
2F8
8
COM B
COM A or COM B
or LPT2
378
8
LPT1
LPT2
3BC
8
LPT1
3C0
8
Video