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Section 7: TSP command reference
Bit
Value and description
Not used
B0
status.operation.instrument.smuX.trigger_overrun.ARM
B1
Set bit indicates that the arm event detector of the SMU was already in the detected state when a
trigger was received.
Bit B1 decimal value: 2
status.operation.instrument.smuX.trigger_overrun.SRC
B2
Set bit indicates that the source event detector of the SMU was already in the detected state
when a trigger was received.
Bit B2 decimal value: 4
status.operation.instrument.smuX.trigger_overrun.MEAS
B3
Set bit indicates that the measurement event detector of the SMU was already in the detected
state when a trigger was received.
Bit B3 decimal value: 8
status.operation.instrument.smuX.trigger_overrun.ENDP
B4
Set bit indicates that the end pulse event detector of the SMU was already in the detected state
when a trigger was received.
Bit B4 decimal value: 16
Not used
B5 to B15
As an example, to set bit B1 of the operation status SMU A trigger overrun enable register, set
status.operation.instrument.smua.trigger_overrun.enable =
status.operation.instrument.smua.trigger_overrun.ARM.
In addition to the above constants, operationRegister can be set to the numeric equivalent of the
bit to set. To set more than one bit of the register, set operationRegister to the sum of their
decimal weights. For example, to set bits B1 and B4, set operationRegister to 18 (which is the
sum of 2 + 16).
Bit
Binary value
Decimal
Weights
Bit
Binary value
Decimal
Weights
Example 1
status.operation.instrument.smua.trigger_overrun.enable =
status.operation.instrument.smua.trigger_overrun.ARM
Uses a constant to sets the ARM bit of the operation status SMU A trigger overrun enable register.
7-346
Model 2651A High Power System SourceMeter® Instrument Reference Manual
B7
B6
B5
0/1
0/1
0/1
128
64
32
7
6
5
(2
)
(2
)
(2
)
B15
B14
B13
0/1
0/1
0/1
32,768
16,384
8,192
15
14
13
(2
)
(2
)
(2
)
B4
B3
B2
0/1
0/1
0/1
16
8
4
4
3
2
(2
)
(2
)
(2
)
B12
B11
B10
0/1
0/1
0/1
4,096
2,048
1,024
12
11
10
(2
)
(2
)
(2
)
2651A-901-01 Rev. C October 2021
B1
B0
0/1
0/1
2
1
1
0
(2
)
(2
)
B9
B8
0/1
0/1
512
256
9
8
(2
)
(2
)
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