Manta Technical Manual V7.0.3
97
Camera interfaces
Trigger rules
•
The
end of exposure
will always trigger the next Readout.
•
The
end of exposure
must always end after the current Readout.
•
The
start of exposure
must always correspond with the Interline Time if
Readout is true.
•
Exposure start delay
equals the Readout time minus the Registered Expo-
sure Time.
Triggering during the Idle State
For applications requiring the shortest possible trigger Latency and the small-
est possible trigger jitter the User trigger signal should be applied when Imag-
ing is false and Idle is true.
Exposure
High when the camera image sensor is integrating
light.
Readout
High when the camera image sensor is reading out
data.
Trigger latency
Time delay between the user trigger and the start
of exposure
Trigger jitter
Error in the trigger latency time
Trigger ready
Indicates to the user that the camera will accept
the next trigger.
Registered exposure time Exposure time value currently stored in the camera
memory.
Exposure start delay
Registered Exposure Time subtracted from the
Readout time and indicates when the next expo-
sure cycle can begin such that the exposure will
end after the current Readout.
Interline time
Time between sensor row readout cycles.
Imaging
High when the camera image sensor is either
exposing and/or reading out data.
Idle
High if the camera image sensor is not exposing
and/or reading out data.
Note
The
user trigger pulse width
should be at least three times the
width of the trigger latency as indicated in
Term
Definition
Table 42: Trigger definitions
