NED
UME-0033-01
Sui74450T2
35
4.8.2 External Trigger Exposure Mode
In external trigger exposure mode, the line period and the exposure time is determined
by the setting made through the external trigger pulse (CC1) cycle. Each exposure starts
with the rising edge 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.
Exposure
Readout
①
①
②
②
Trigger
(CC1)
①
②
③
③
a
b
exposure
time
read time
scan period
Figure 4-8-2-1 External Trigger Exposure Mode
Timing restrictions are as below:
a: External Pulse H Time 40nS(2CK) or more
b: External Pulse L Time 20nS(1CK) or more
a+b: Scan Cycle is between 80
µ
S
～
20.9715mS (4000
～
1048575CK)
