RMV Operations Manual Revision Copyright illunis LLC, 2014
Page 116
8.5 Camera Link
Over Scan Mode
A special mode is available that allows all
of the pixels of the sensor to be output in an over
scan mode. This mode allows the user to capture
the special performance measuring and optical
black pixels from the sensor. In over scan mode
the LVAL and FVAL are modified to allow the cap-
ture device to sample the extra pixels.
Serial Commands
Target
Index
Command
R/W Description
04
08
Over scan mode
W
0x0000 = Disable over scan mode
0x0001 = Enable over scan mode
Quick FAQ’s:
►CCD sensors have special pixels that are used to
measure performance and optical black.
►Optical black pixels are shielded from light by metal
that covers the pixels.
►Most cameras only output the active pixels of the
sensor.
►Over scan mode allows the user to measure the
performance of all pixels on the sensor.
Active Area
A
c
ti
ve
a
re
a
Active area
Over scan area
Ov
er
sc
an
are
a
LV
A
L
S
ta
rt
LV
A
L
S
to
p
FVAL Start
FVAL Stop