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Common (*) Commands 6

Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide 249

Query Syntax *SRE?

The *SRE? query returns the current value of the Service Request Enable Register.

Return Format

<mask> ::= sum of all bits that are set, 0,..,255;

an integer in NR1 format

See Also • "Introduction to Common (*) Commands" on page 231

• "*STB (Read Status Byte)" on page 250

• "*CLS (Clear Status)" on page 233

Table 81 Service Request Enable Register (SRE)

Bit Name Description When Set (1 = High = True), Enables:

7 OPER Operation Status Register Interrupts when enabled conditions in the

Operation Status Register (OPER) occur.

6 --- --- (Not used.)

5 ESB Event Status Bit Interrupts when enabled conditions in the Standard

Event Status Register (ESR) occur.

4 MAV Message Available Interrupts when messages are in the Output Queue.

3 --- --- (Not used.)

2 MSG Message Interrupts when an advisory has been displayed on

the oscilloscope.

1 USR User Event Interrupts when enabled user event conditions

occur.

0 TRG Trigger Interrupts when a trigger occurs.

Keysight Technologies InfiniiVision 4000 X Series User Manual

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