Table of Contents
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Figures
2-7.
3-1.
3-2.
3-3.
3-4.
3-5.
3-7.
3-8.
3-9.
3-10.
3-11.
3-12.
3-13.
3-14.
3-15.
3-16.
3-17.
3-18.
3-19.
3-20.
3-21.
3-22.
3-23.
.............
1-4
........
0.0... 0. eee
eee
1-5
System Board 1/O Address Map
................
1-6
Performance Specifications - System Board
.......
1-7
Physical Specifications
..................005.
1-8
.................00-0084
1-9
Component Maximum Current
................
1-10
..................2005
1-10
Voltage Assignments for the Internal Drive
Power-Supply Connectors
...................
1-11
............
2-5
Card Selected Feedback Register (Hex 0091)
.......
2-6
System Board Enable/Setup Register (Hex 0094)
.....
2-7
System Board POS Register 2 (Hex 0102)
..........
2-8
Parallel PortSelect Bits
...................0..
2-8
System Board POS Register (Hex 0103)
...........
2-9
Adapter Enable/Setup Register (Hex 0096)
........
2-10
.............
3-4
...........
3-5
.............
3-5
.................00-0 5s
3-8
...............
3-9
RAM Address Map
.................
3-10
3-11
.............
3-11
................0005.
3-13
..............-.--0-0004.
3-13
..................000008,
3-14
................--
0000005
3-15
..................
000008,
3-15
..................0..
3-16
....................
3-17
Diskette Drive Type Byte (Bits7-4)
............
3-17
Diskette Drive Type Byte (Bits3-0)
............
3-17
Equipment Byte
.............-...
0200020
3-18
Equipment Byte (Bits 7,6)
...............00.,
3-18
Equipment Byte (Bits 5,4)
...............00..
3-18
System Control Port B (Write)
.................
3-20
System Control Port B (Read)
.................
3-21
..............
3-21
© Copyright IBM Corp. 1989, 1990
ix
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