HP 3000 SERIES II System Service Manual page 53

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SELECTED REGISTERS
V-BUS CMD
I/O
CLK LAMPS ON ADDRESS DEV NO. IOD lOP DATA
CTL COMMENTS
130 SIO ACTIVE 3275 0
32 33 0 -
I/O WAIT
131 SIO ACTIVE 3276 0
32 33 0
-
I/O WAIT
132
SIO ACTIVE 3277 0 32 33 0 0
I/O WAIT
133 lOB ENABLE 3275
0 32 33 0
-
SIO ACTIVE
134 SERVICE OUT 3276 0
32 33 0
-
SIO ACTIVE
lOB ENABLE
135
SERVICE IN 3277 0 32 33 0
-
SIO ACTIVE
lOB ENABLE
136
3275 0
32 33
0
-
137
DATA POLL 3276 0 32 33 0
-
138
DATA POLL 3277 0
32 33
30
-
139 DATA POLL
3275
1000
32 33 30 -
140 SERVICE IN 3276 1000
30 33 0
-
SIO ACTIVE
DRT REQ
I/O LORQ
00
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