NED
XCM40170DLMT2CXP
UME-0064-01
42
5.9.2 External Trigger Exposure Mode (Trigger Edge)
In external trigger exposure mode (Trigger Edge), the exposure time is
determined by setting the control register, and the line period is determined by the
external trigger period. Each exposure starts with the 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 5-9-2-1
External Trigger (Trigger Edge) Programmable Exposure Time
p
Programmable exposure time
4096pixels_Dual
10.765
~
12336.176
4096pixels_Single
23.000
~
12336.176
2048pixels_Dual
10.941
~
12336.176
2048pixels_Single
10.941
~
12336.176
r
Readout
time
4096pixels_ Dual
12.05
4096pixels_ Single
24.09
2048pixels_ Dual
12.05
4096pixels_ Single
12.05
a
Trigger pulse H time
≧
2.9
b
Trigger pulse L time
≧
2.9
c
Trigger pulse cycle
4096pixels_ Dual
≧
13.12
4096pixels_ Single
≧
25.93
2048pixels_ Dual
≧
13.43
2048pixels_ Single
≧
13.43
(
Unit:
µ
s
)
E x p o s u r e
R e a d o u t
①
①
②
②
T r i g g e r
①
②
③
③
( C C 1 )
a
b
p
r
c
Figure 5-9-2-1 External Trigger (Trigger Edge) Exposure Mode (In case of 4096 pixels)
The data of Exposure (1) is read out at Readout (1)