39 NED
XCM8040SAT4 UME-0038-02
4.8.3
External Trigger Exposure Mode (Trigger Level)
In external trigger exposure mode
(Trigger Level)
, the exposure time is
determined by the setting for the line period parameter, each exposure starts
with the rising edge and the line period is determined by high trigger pulse time.
The range of programmable exposure time, the timing chart of the exposure and
the readout are shown below.
ｒ
Readout time
51.2
a
Trigger pulse H time
≧48.8
b
Trigger pulse L time
≧4.8
c
Trigger pulse cycle
≧53.6
（
Unit:
μs
）
Table 4-8-3-1 Programmable Exposure Time
Exprosure
Readout
(1)
(1)
(2)
Trigger
(2)
(1)
(2)
(3)
(3)
(CC1)
c
b
a
r
a
Figure 4-8-3-1 External Trigger (Trigger Level) Exposure Mode
The data of Exposure (1) is read out at Readout (1)