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7
Read F0F40000 to check the recording status.
01000000 indicates during recording, and
010100nn indicates recording has stopped.
8
Set trigger mode to OFF.
9
Secure the isochronous resource and start video.
The recorded images are output continuously.
If trigger mode remains ON, one image is output
each time a trigger is input.
10
Read F0F40000 to check the playback status.
02000000 indicates during playback, and
02010000 indicates playback has stopped.
When playback stop is confirmed, stop video and
open the isochronous resource.
To continue recording/playback, go back to step 5.
11
To stop Memory shot, switch to normal mode.
Notes on the Camera
Operations
If Frame Rate Decrease Occurs
With this camera, the frame rate may reduce depending
on shutter settings and changes.
1) 4-frame images will not be output when the shutter is
changed.
2) In long exposure mode, the exposure time is set
longer than the frame cycle. In this case, the frame
rate decreases gradually according to the exposure
time.
When Using Trigger Mode
This camera is set to accept a trigger at the fastest
possible timing and it can accept overlap of the next
trigger signal during video transmission. For this reason,
a trigger inhibition period is not available. Thus, if a
trigger signal is input before the image sensor can accept
exposures, multiple exposures can occur, and it cannot
capture the correct image. Design the trigger generation
circuit so that the trigger cycle is not faster than
necessary. For the same reason, a malfunction may
occur when noise overlaps a trigger signal. In this case,
suppress noise in the trigger generation circuit.
Further, operations such as changing the shutter for each
trigger are not possible with this camera's trigger mode.
A normal image is output for the first time by trigger
operations with a shutter setting equal to 5 frames or
more. Images for 4 frames cannot be output by the
camera itself. Be sure to take note of this before use.
Also, with trigger mode 1, images are not output
normally when the jitter component of the trigger signal
itself is large. Keep the jitter component of the trigger
signal itself within 296 ns. Use trigger mode 0 if this
condition cannot be met.
Changing the trigger mode or trigger polarity may cause
image disturbance. Be sure to take note of this before
use.
Increase in White Flecks and Noise
White flecks and noise, which are phenomena specific
to image sensors in this camera, may increase.
Noise tends to increase in the following cases:
1) When used in a high-temperature environment
2) When the gain is increased
3) When using a slow shutter or the trigger cycle is long
4) When the image sensor itself is depleted
