*SRE <integer>
*SRE?
Service Request Enable
The Service Request Enable command sets/reads the service request enable register bits. This enable register contains a mask value for the bits to be enabled in the status byte register. A bit that is set true in the enable register enables the corresponding bit in the status byte register to generate a Service Request.
Parameters: <integer> = the sum (between 0 and 255) of all bits that are true
See table below:
| Service Request Enable Register (1 = enable) | ||
| Bit | Weight | Enables |
| 7 | 128 | OPR, Operation Status |
| 6 | 64 | RQS, Request Service |
| 5 | 32 | ESB, Event Status Bit |
| 4 | 16 | MAV, Message Available |
| 3 | 8 | QUE, Questionable Data/Signal Status |
| 2 | 4 | EAV, Error Available |
| 1 | 2 | Reserved |
| 0 | 1 | Reserved |
Returned Format: <integer>
Where:
<integer> = the sum of all bits that are set.
Example: *SRE 16
In this example, the counter generates a service request when a message is available in the output queue.