Version 1.0 rev 14 Aug 2019
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In this section, both External and Software Trigger are described in the same diagram as the acquisition sequence is the
same. The trigger event can be supplied either from the external input or sent via software. While waiting on the trigger
event, the sensor is put into a “pre-scan read out cycle”. On detection of the trigger, the Global Clear line is pulsed to
clear the charge and start the exposure from the sensor. The exposure period lasts for the user defined exposure time.
The reference frame is read out during the exposure such that the end of the reference read out is coincident with the
end of the exposure. The Charge Transfer pulse then goes HIGH to transfer charge from all pixels in the sensor. Finally,
the signal frame is then read. The camera then returns to the “pre-scan read out cycle” waiting for the next trigger.
Figure 23: Global Shutter External/Software Triggering Short Exposure.
Figure 24: Global Shutter External/Software Triggering Long Exposure.
