National Instruments Corporation
Rising-edge
polarity
Falling-edge
polarity
Figure 4-18. TRIG1 Output Signal Timing
The board also uses the TRIG1 signal to initiate pretriggered data
acquisition operations. In most pretriggered applications, the TRIG1
signal is generated by a software trigger. Refer to the TRIG2 signal
description for a complete description of the use of TRIG1 and TRIG2
in a pretriggered data acquisition operation.
t
t
= 10 ns minimum
w
Figure 4-17. TRIG1 Input Signal Timing
t
w
t
= 50-100 ns
w
4-35
Chapter 4
Signal Connections
w
AT-MIO/AI E Series User Manual