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7.5.4
GPIO TTL output timing if Trigger Overlap is Readout
Frame Start -Trigger Mode ="On"
Exposure Mode ="Timed"
Trigger Overlap ="Readout"
Frame Start
Trigger
Frame
Trigger Wait
Frame Active
Exposure
Active
FVAL Active
Fig. 29
GPIO timing (Overlap = Readout)
Table - 46 GPIO output timing(Reference) (Trigger Overlap = Readout )
Description
(a)
Frame Start Trigger
to Frame Trigger Wait Falling Edge
(b)
Exposure Active Falling Edge
to FVAL Raising Edge
(c)
Frame Trigger Wait Rising Edge
to Frame Active Falling Edge
(d)
Exposure Active
(e)
FVAL Active
(f)
Frame Active
(g)
Exposure Active Falling Edge
to Frame Trigger Wait Rising Edge
(h)
FVAL Falling Edge
to Frame Active Falling Edge
(i)
Frame Trigger Wait Falling Edge
to Frame Active Rising Edge
(j)
Frame Active Rising Edge
to Exposure Active Rising Edge
(k)
Frame Start Trigger
to Exposure Active Rising Edge
(l)
Frame Trigger Wait Rising Edge
Variableness
-
Exposure Active Start Edge :
Internal / TTL Out Phase
-
Exposure Active End Edge：
Internal /TTL Out Phase
Note: (1) In order to explain the phase relation of Frame Trigger Wait and Frame Active, the timing in this table reflects the condition
that the trigger input is not overlapped in the previous video readout.
(2) Figures in ( ) are the comparison between the exposure time inside camera and Exposure Active.
SP-20000M-CXP2 / SP-20000C-CXP-2
(a)
(k)
(l)
(i)
(g)
(f)
(j)
(d)
(b)
(e)
Tap Geometry：Geometry_1X_1Y
Link Configuration Setting
CXP6_X2
860 ns
304.97 us
(305.22 us)
6.98 us
8.61 us
(10.03 us)
30.77 ms
(Internal：
30.77 ms)
31.08 ms
4.05 us
1.02 us
1.32 us
0.00 us
2.15 us ~
2.17 us
(450 ns~
480 ns)
31.06 ms
1.70 us
250 ns
Starting position of Frame Trigger Active at EPS Trigger
/ [Trigger Overlap] = "Readout" setting.
The starting position will vary until [Exposure Time] value
(c)
exceeds ([FVAL]+[Exposure Active End Edge ~ FVAL Active
Start Edge]-158).
[FVAL]+[Exposure Active End Edge ~ FVAL Active Start Edge]
(h)
is a constant value. If [Exposure Time] is smaller than this
constant value, the overlap period is shorter and if [Exposure
Time] is larger than this constant value, the overlap period is
longer.
CXP6_X1
CXP3_X1
CXP3_X2
840.00 ns
1.063 us
(±25ns)
304.97 us
610.19 us
(305.21 us)
(610.42 us)
6.97 us
6.97 us
8.56 us
8.68 us
(10.03 us)
(10.05 us)
61.53 ms
123.07 ms
(Internal：
(Internal：
61.54 ms)
123.07 ms)
61.85 ms
123.69 ms
5.05 us
5.03 us
1.03 us
270 ns
1.33 us
1.29 us
0.00 us
0.00us
2.16 ~
2.33 ~
2.17 us
2.38 us
(450 ~
(700 ~
480 ns)
750 ns)
61.83 ms
123.67 ms
1.71 us
1.62 us
250 ns
230 ns
- 51 -
Note
This is changed by Link Configuration
setting.
Is Exposure Time=10 us
If Exposure Time=10 us
( ) is the exposure time inside camera
If Binning off and Height = 3840
(Varies by the vertical ROI setting)
If Exposure Mode = Timed
This may vary by binning setting and ROI
setting. The phase of Frame Active End
Edge may vary by 1us against FVAL
Active End.
Exposure Active at TTL I/F output
( ) is the exposure phase relation inside
camera
Varies by Exposure Time setting
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