Cheetah Pregius Camera with GigE Vision
®
Interface – User Manual
August 27, 2019
Page
105
of
123
Rev 1.0
5.6 Data Output Format
Pixel Format
The image sensor digitization level is fixed at 12-bits, which enables 8-bit, 10-bit or 12-bit data
format output. With 8-bit output, the camera uses the standard bit reduction process and
truncates the least significant bits.
12-bit digitization
-
If the camera is set to output 12-bit data, sensor data bits map directly to D0 (LSB)
to D11 (MSB).
-
If the camera is set to output 10-bit data, sensor most significant data bits (D2 to
D11) map to D0 (LSB) to D9 (MSB)
-
If the camera is set to output 8-bit data, sensor most significant data bits (D4 to D11)
map to D0 (LSB) to D7 (MSB).
MSB
Camera Output – 12 bits
LSB
D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
MSB
Camera Output – 10 bits
LSB
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
MSB
Camera Output – 8 bits
LSB
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
P10
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
Figure 68:
12-bit internal Digitization with 12-bit, 10-bit, and 8-bit outputs
5.7 Pulse Generator
The camera has a built-in pulse generator that you can program to generate a discrete
sequence of pulses or a continuous sequence (
). You can use the pulse generator as
a trigger signal or map it to one of the outputs. Set the discrete number of pulses from 1 to
65535 with a step of 1.
You can also set the following options:
•
Granularity
– Indicates the number of clock cycles used for each increment of the
width and the period. Four possible options are available: x1, x10, x100, and
x 1000.
•
Width
– Specifies the amount of time (determined by the granularity) the pulse
remains at a high level before falling to a low level.
•
Period
–
Indicates the amount of time (also determined by the granularity) between
consecutive pulses.
Period
Width
Figure 69:
Internal pulse generator