Status and Events
TDS200/1000/2000 Series Oscilloscope Programmer Manual
3−3
Table 3−1: SESR bit functions (Cont.)
Bit Function
1 RQC (Request Control). Not used.
0 (LSB) OPC (Operation Complete). Shows that the operation is
complete. This bit is set when all pending operations complete
following a *OPC command. See Table 2−25 on page 2−121 for a
list of commands that generate an Operation Complete message.
The Status Byte Register (SBR). The SBR, shown in Figure 3-2, records
whether output is available in the Output Queue, whether the
oscilloscope requests service, and whether the SESR has recorded
any events.
Use a Serial Poll (GPIB only) or *STB? to read the contents of the
SBR. The bits in the SBR are set and cleared depending on the
contents of the SESR, the Event Status Enable Register (ESER), and
the Output Queue. When you use a Serial Poll to obtain the SBR, bit
6 is the RQS bit. When you use the *STB? query to obtain the SBR,
bit 6 is the MSS bit. Reading the SBR does not clear the bits.
Figure 3-2 shows the SBR bit functions.
RQS
ESBMAV
MSS
7
6
543210
6
Figure 3−2: The Status Byte Register (SBR)
Table 3-2 lists and describes SBR bit functions.
To Next Page
Loading...
Need help?
General
