HP 3000 SERIES II System Service Manual page 56

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SELECTED REGISTERS
V-BUS CMD I/O
CLK LAMPS ON ADDRESS DEVNO. 10D lOP DATA CTL COMMENTS
156 SIO ACTIVE 3277
0 33 35 0 -
I/O WAIT
157 SIO ACTIVE 3275 0 33 35 0 40000
I/O WAIT
158
SIO ACTIVE 3276 0 33 35 40000
-
lOB ENABLE
159
SERVICE OUT 3277 0 33 35 40000
-
SIO ACTIVE
lOB ENABLE
160
SERVICE IN 3275 0 33 35 40000 -
SIO ACTIVE
lOB ENABLE
161 3276 0 33 35 0
-
162 DATA POLL 3277
0 33 35 0
-
<STATE B>
163
DATA POLL 3275 0 33 35 0 -
164
DATA POLL 3276 0 33 35 34 -
165 SERVICE IN 3277
0 34 35 0
-
SIO ACTIVE
I/O LORQ
166 SIO ACTIVE 3275 0 34 35 0 34
I/O WAIT
I/O SELECT
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