IBM Personal System/2 65 SX - Page 64

register (continued)
system-board
POS
2-5—2-10
reset, alternative 3-24
ROM enable 2-10
ROM (read-only memory)
RT/CMOS RAM
address and NMI mask
register 3-12
address map 3-12
configuration
bytes
3-17
data register 3-13
description 93-12
diagnostic-status
byte
3-17
I/O operations 3-13
power-on
password
3-25
secured area 3-24
Status
registers
3-15—3-17
S
sequencing,
output
voltage
1-10
serial
port
1-4,
2-8
setup
bus
contention
2-3
system-board
2-4,
2-6
system-board
I/O
2-8
system-memory
map
3-9
video
2-7
shutdown-status
byte
3-18
signal
card
setup
2-12
card-selected
feedback
2-5
channel
reset
2-12
size,
system
unit
1-7
sound
levels
1-7
speaker
data
enable
3-23
specifications
performance
1-6
physical
1-7
status
registers
(RT/CMOS)
3-15—3-17
switch
to
real
3-24
system
configuration
utilities
2-3,
3-9
control
ports
3-23-~—-3-24
description
1-3
functions,
miscellaneous
3-22
1-4, 3-7
X-4 Index
system (continued)
performance 1-6
reset 3-22
specifications 1-7
timers 1-4
system-board
address map 1-5
description 3-3
enable/setup register 2-7
features 1-3
VO 2-8
memory connector 3-11
memory register 2-9
model identifier 1-3
POS /O address map 2-5
POS registers 2-10
setup 2-4, 2-6
T
temperature 1-7
time-status indicator 3-18
timers, system 1-4
type identifier 1-3
U
useable memory count 3-20
Vv
video
setup 2-7
subsystem 1-4, 2-4
voltage, power supply 1-7
Ww
warning
arbitration 3-4
central arbiter 3-5
NMI mask 3-22
POS 2-3, 3-9
reserved areas v
RT/CMOS_ 3-13
watchdog status 3-24
weight, system unit 1-7