622
S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_hpib_status_status_byte.fm
Status Byte Register
Status Byte Register
*STB?
NOTE The Status Byte Register can also be read with a serial poll. For example, the command
“Status_byte = SPOLL(714)” would perform a serial poll of the Status Byte Register, returning
and releasing RQS (bit 6).
Status Byte Register Bit Assignments
Program Example - Status Byte Register Bit Assignments
OUTPUT 714;”*STB?” !Queries the Status Byte.
Bit
Number
Binary
Weighting
Label Description
7 128 STATus: OPERation Summarizes the STATus: OPERation
Status Register, which fans out to the
NMRReady and CALL Status Registers.
664 RQS (SRQ TRUE?)/Master
Summary Status
RQS is read by a serial poll (SPOLL)
Master Summary Status is read by a *STB? query -
defined by IEEE 488.2
532 Standard Event Status Register Summarizes the Standard Event Status Register
416 Message Available SCPI - Defined
3 8 STATus: QUEStionable
Status Register
Summary Message comes from the
STATus: QUEStionable Status Register,
which fans out to the CALL and
HARDware Status Registers
24 Error/ Event Queue SCPI - Defined
12 Reserved
01 Reserved
*STB?
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