Status and Events
3–4
TDS Family Oscilloscope Programmer Manual
PON URQ CME EXE DDE QYE RQC OPC
76543210
Figure 3–4: The Event Status Enable Register (ESER)
The Service Request Enable Register (SRER) — is shown in Figure 3–5. It
controls which bits in the SBR generate a Service Request and are summarized
by the Master Status Summary (MSS) bit.
Use the *SRE command to set the SRER. Use the *SRE? query to read it. The
RQS bit remains set to one until either the Status Byte Register is read with a
Serial Poll or the MSS bit changes back to a zero.
— — ESB MAV — — — —
76543210
Figure 3–5: The Service Request Enable Register (SRER)
The *PSC command controls the Enable Registers contents at power-on.
Sending *PSC 1 sets the Enable Registers at power on as follows:
H DESER 255 (equivalent to a DESe 255 command)
H ESER 0 (equivalent to an *ESE 0 command)
H SRER 0 (equivalent to an *SRE 0 command)
Sending *PSC 0 lets the Enable Registers maintain their values in non-volatile
memory through a power cycle.
NOTE. To enable the PON (Power On) event to generate a Service Request, send
*PSC 0, use the DESe and *ESE commands to enable PON in the DESER and
ESER, and use the *SRE command to enable bit 5 in the SRER. Subsequent
power-on cycles will generate a Service Request.
The Enable Registers and
the *PSC Command
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