Technical data

SCPI Commands Reference DIGital Commands
32 Agilent 81133A/81134A Pulse Generator Programming Guide, March 2007
Example Set data format to R1.
:DIG:SIGN:FORM R1
:DIGital[1|2][:STIMulus]:SIGNal:POLarity
Syntax :DIG[1|2][:STIM]:SIGN:POL[?]
Form Set & Query
Description This command is used to program the data polarity for Data and
PRBS signals. The 32- bit data pattern is logically inverted, that is,
1 s are replaced with 0 s and vice versa.
NOTE This is not the same as the [:SOURce][:PULSe]:POLarity[1|2]
command, which physically inverts the signal by swapping the
OUTPUT and
OUTPUT signals.
Parameter NORMal|COMPlement|INVerted
INVerted are synonyms (INVerted is included for backwards
compatibility).
*RST value NORMal
Example Logically invert the 32- bit data.
:DIG:SIGN:POL INV
:DIGital[1|2][:STIMulus]:SIGNal:
CROSsover:[VALue]
Syntax :DIG[1|2][:STIM]:SIGN:CROS[?]
Form Set & Query
Description If variable crossover mode is enabled, this command specifies a
value to adjust the crossover point of the NRZ signal in PRBS or
data mode, individually for each channel.
To enable the variable crossover mode, use
“:DIGital[1|2][:STIMulus]:SIGNal: CROSsover:[STATe]” on page 34.
The variable crossover is used to artificially close the eye pattern,
which simulates distortion.