VCC-5CXP3NIR
Rev. 905-0123-00
©2018 CIS Corporation. All rights reserved.
9
7.3.2
External Trigger Sync. Mode
This is a mode to input external trigger signals to capture images by any preferred timings.
Some delay shall be considered from when camera recognizes the trigger edge to when actual exposure starts.
Please refer to below for the delay time.
Input
Delay Time
LinkTrigger0
Approx. 3.4us
Line0
Approx. 150ns
・
Notes for trigger pulse input timing
A trigger pulse for the next frame can be input while reading out. However, please do not input a trigger pulse to end
exposure while reading out signals for the prior frame. (In other words, please avoid inputting a trigger to start reading
the next frame while reading out signals for the prior frame.)
No video would be output in case of when a trigger was re-input at the restricted timing explained the above, or at the
timing to end exposure right after FVAL became “L”. In such cases or when proper images cannot be output, stop
inputting a trigger, then execute “SensorReset” command to re-start.
※
Should it cannot be solved, please reboot the camera.
Device Control
SensorReset
(Execute)
・
Notes for the delay time between trigger pulse and actual exposure start.
Due to the image sensor’s features, there will be a timing difference between normal readout operation (exposure for the
next frame starts after reading out completes.) and overlapping readout operation (exposure for the next frame starts
while reading out.). There are some gap of timing between when a trigger is input to the image sensor, and when
exposure actually starts.
Triger
Exposure
FVAL
(
≒
Readout)
