VXI Technology, Inc.

 

 

*SRE

 

 

 

 

 

 

Purpose

Sets the service request enable register

 

 

 

 

 

Type

IEEE 488.2 Common Command

 

 

 

 

 

 

Command Syntax

*SRE <mask>

 

 

 

 

 

 

Command Parameters

<mask> = Numeric ASCII value from 0 to 255

 

 

 

 

 

*RST Value

None – Required Parameter

 

 

 

 

 

 

Query Syntax

*SRE?

 

 

 

 

 

 

Query Parameters

N/A

 

 

 

 

 

 

Query Response

Numeric ASCII value from 0 to 255

 

 

 

 

 

 

Description

The Service Request Enable (SRE) mask is used to control which bits in the status

 

 

byte generate back plane interrupts. If a bit is set in the mask that newly enables a

 

 

bit set in the status byte and interrupts are enabled, the module will generate a

 

 

REQUEST TRUE event via an interrupt. See the *STB? Command for the layout of

 

 

bits.

 

 

 

Note:

 

 

 

Bit 6 is always internally cleared to zero as required by IEEE 488.2 section 11.3.2.3.

 

 

The layout of the Service Request Enable Register is:

 

 

Bit 0 – Unused

 

 

 

Bit 1 – Unused

 

 

 

Bit 2 – Error Queue Has Data

 

 

 

Bit 3 – Questionable Status Summary (Not Used)

 

 

Bit 4 – Message Available

 

 

 

Bit 5 – Event Status Summary

 

 

 

Bit 6 – 0 (per IEEE 488.2 section 11.3.2.3)

 

 

Bit 7 – Operation Status Summary

 

 

 

 

 

 

Examples

Command / Query

Response (Description)

 

 

*SRE 4

(Sets the service request enable register)

 

 

*SRE?

4 (Returns the value of the SRE register)

 

 

 

 

 

Related Commands

N/A

 

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VM4016 Command Dictionary

Page 58
Image 58
VXI VM4016 user manual Sre