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Chapter 3 Hardware Overview
PCI-4451/4452 User Manual 3-8
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National Instruments Corporation
In above-high-level triggering mode, the trigger is generated when the
signal value is greater than highValue. LowValue is unused.
Figure 3-4.
Above-High-Level Triggering Mode
In inside-region triggering mode, the trigger is generated when the signal
value is between the lowValue and the highValue.
Figure 3-5.
Inside-Region Triggering Mode
In high-hysteresis triggering mode, the trigger is generated when the signal
value is greater than highValue, with the hysteresis specified by lowValue.
Figure 3-6.
High-Hysteresis Triggering Mode
highValue
Trigger
highValue
Trigger
lowValue
highValue
Trigger
lowValue
User.book Page 8 Tuesday, April 14, 1998 10:20 AM