NED
NUCLi7370AT6
UME-0069-03
42
4.8.2 External Trigger Exposure Mode
In external trigger exposure mode, the exposure time is determined by the setting
made through the external trigger pulse (CC1) cycle. Each exposure starts with the
rising edge and the line period is determined by the time from rising edge to rising
edge of the trigger pulse. The range of programmable exposure time and the timing
chart of the exposure and the readout are shown below.
Table 4-8-2-1 External Trigger Exposure Time
h
Trigger pulse High time
≧
0.1
t
Trigger pulse cycle
≧
57 (at 6-tap output)
≧
88 (at 3-tap 85MHz output)
≧
114 (at 3-tap 70MHz output)
r
Readout time (LVAL)
52.2 (at 6-tap output)
85.9 (at 3-tap 85MHz output)
104.3 (at 3-tap 70MHz output)
(unit : μs)
Trigger
(CC1)
Exposure
Readout
(LVAL)
h
t
r
Figure 4-8-2-1 External Trigger Exposure Mode