IBM Personal System/2 50 User Manual

System
Board
I/O
Address
Map
Hex Addresses
Device
0000 - 001F
0020, 0021
0040, 0042 - 0044, 0047
0060
0061
0064
0070, 0071
0081 - 0083, 0087
0089, 008A, 008B, 008F
o0s0
0091
0092
0094
0096
OOA0 - OOA1
00CO - OODF
OOFO - OOFF
0100 - 0107
O1FO - O1F8
0278 - 027B
02F8 - 02FF
0378 - 037B
03B4, 03B5, 03BA
03BC - 03BF
03C0 - 03C5
03C6 - 03C9
03CA, 03CC, 03CE, 03CF
03D4, 0305, 03DA
03F0 - 03F7
O3F8 - O3FF
DMA Controller (0 — 3)
Interrupt Controller (Master)
System Timers
Keyboard, Auxiliary Device
System Control Port B
Keyboard, Auxiliary Device
RT/CMOS and NMI Mask
DMA Page Registers (0 — 3)
DMA Page Registers (4 — 7)
Central Arbitration Control Point
Card Selected Feedback Register
System Control Port A
System Board Enable/Setup Register
Adapter Enable/Setup Register
Interrupt Controller (Slave)
DMA Controller (4 — 7)
Math Coprocessor
Programmable Option Select
Fixed Disk Drive Controller
Paratlel Port 3
Serial Port 2 (RS-232C)
Parallel Port 2
Video Subsystem
Parallel Port 1
Video Subsystem
Video DAC
Video Subsystem
Video Subsystem
Diskette Drive Controller
Serial Port 1 (RS-232C)
Figure
1-4.
System
Board
I/O
Address
Map
1-6
Model
50
System
Overview
—
October
1990

IBM Personal System/2 50 Specifications

General

Brand	IBM
Model	Personal System/2 50
Category	Desktop
Language	English