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7.5.6
GPIO TTL output timing if Trigger Overlap is Readout
Frame Start -Trigger Mode ="On", Exposure Mode ="Timed", Trigger Overlap ="Readout"
Frame Start
Trigger
(a)
(k)
Frame
Trigger Wait
Frame Active
Exposure
Active
FVAL Active
Fig. 29
GPIO timing (Overlap = Readout)
Table - 36 GPIO output timing(Reference) (Trigger Overlap = Readout )
Region
(a)
Frame Start Trigger
to
Frame Trigger Waite 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
Difference
Exposure Active End Edge：
Internal
/TTL
Out
Difference
Note: (1) In order to explain the phase relationship 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-USB / SP-20000C-USB
(l)
(i)
(g)
(f)
(j)
(d)
(b)
(e)
Pixel Format
8bit
Monochrome
1.00 us
306.70 us
(305.20 us)
6.90 us
8.60 us
(10.00 us)
61.530 ms
(61.540 ms)
62.510 ms
4.10 us
(4.40 us)
658.80 us
(659.00 us)
1.20 us
0.10 us
2.20 us
(0.50 us)
62.490 ms
1.70 us
Phase
0.30 us
Phase
Starting position of Frame Trigger Active at EPS Trigger
/ [Trigger Overlap] = "Readout" setting.
The starting position will vary until [Exposure Time] value
exceeds ([FVAL]+[Exposure Active End Edge ~ FVAL Active
Start Edge]-158).
(c)
[FVAL]+[Exposure Active End Edge ~ FVAL Active Start Edge]
is a constant value. If [Exposure Time] is smaller than this
constant value, the overlap period is shorter and if [Exposure
(h)
Time] is larger than this constant value, the overlap period is
longer.
10bit /12bit
Monochrome
←
←
←
←
←
125.010 ms
←
63.150 ms
(63.150 ms)
←
←
←
125.000 ms
←
←
- 58 -
Note
This is changed by Link Configuration
setting.
fs 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 and
ExposureTime = 10us
This may vary by binning setting and
ROI setting. The phase of Frame
Active End Edge may vary by 1 us
against FVAL Active End.
Exposure Active at TTL I/F output
( ) is the exposure phase
relationship inside camera
Varies by Exposure Time setting
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