IBM Personal System/2 50 Technical Reference page 61

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registers (continued)
RT/CMOS status registers
3-16
reset, alternate
3-27
RT/CMOS address register
3-13
RT/CMOS RAM
3-12
S
password
3-26, 3-28
secured area
3-26
second fixed disk type byte
3-21
serial communications
controller
3-29
serial port
2-8
serial port controller
3-29
setup
system board
2-6
system board I/O byte
2-8
warning
2-3
shutdown status byte
3-20
size
1-9
speaker data enable
3-25
specifications
1-7
status registers (RT/CMOS)
3-16
status, watchdog
3-26
switch to real mode
3-27
system address map
1-6
system board
block diagram
1-5
features
1-4
I/O address map
1-6
I/O byte
2-8
memory
3-7
memory connectors
3-9
memory enable
2-9
memory map
3-8
setup
2-4
system board setup
2-6
system configuration utilities
2-3
system control port A
3-26
system ports, miscellaneous
3-24
system reset
3-24
system unit specifications
1-7
T
time status indicator
3-19
timer status, watchdog
3-26
type 1 memory connector
3-9
type 2 memory connector
3-10
U
utilities, configuration
2-3
V
valid RAM bit
3-18
video subsystem setup
2-4
W
warning, POS
2-3
watchdog status
3-26
weight
1-9
Index
X-3

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