Agilent Technologies Infiniium 8000A, Programmer'S Reference Manual

Page: 640 / 934

24-4
Pod Commands
THReshold
THReshold
Command :POD<N>:THReshold {CMOS50 | CMOS30 | CMOS25 | ECL |
PECL | TTL | <value>}
The :POD<N>:THReshold command sets the logic threshold value for the
selected pod. POD1 is digital channels D0 through D7 and POD2 is digital
channels D8 through D15. The threshold is used for triggering purposes and
for displaying the digital data as high (above the threshold) or low (below the
threshold). The voltage values for the predefined thresholds are:
CMOS50=2.5 V
CMOS30=1.65 V
CMOS25=1.25 V
ECL=-1.3 V
PECL=3.7 V
TTL=1.4 V
<N>
An integer, 1 - 2.
<value>
A real number representing the voltage value which distinguishes a 1 logic level
from a 0 logic level. Waveform voltages greater than the threshold are 1 logic
levels while waveform vlotages less than the threshold are 0 logic levels. The
range of the threshold voltage is from -8 volts to 8 volts.
Query :POD<N>:THREShold?
The :POD<N>:THReshold? query returns the threshold value for the specified
pod.
Return format
[:POD<N>:THReshold] {CMOS50 | CMOS30 | CMOS25 | ECL | PECL |
TTL | <value>}<NL>
The POD commands only apply to the MSO Oscilloscopes.