Configuration MC13xx
Users Manual Rev. 1.19
17
6.5.2 Gain
This is the threshold for the A/D converters. Its standard value is 66h for app. 1V. One step is app.
10mV. To increase the gain the value of a2 must be lowered.
Command:
:a2<x
1
x
0
>
<x
1
x
0
>
: Range,
typ.
30h
...
80h
6.5.3 Black
Level
Change Black Level if sensor clock changes. Increase this parameter until grey values in no light condi-
tion (closed lens) are close to zero.
Command:
:a5<x
1
x
0
>
<x
1
x
0
>
: Range, typ. 00h ...ffh
Response:
none
6.6 Image size and position
Image size and position within the sensor is defined by four parameters:
Bit(s) Description
r1[9..0] Number
of first line, 0..3FD
h
r3[9..0] Number of lines, 0..3FF
h
r4[6..0] Address/10 of the first pixel
r5[6..0] Address/10 of the last pixel
Table 6.6-1
6.6.1 Address of the first line
Register r1 defines the first line to be displayed.
Command:
:r1<x
2
x
1
x
0
>
<x
2
x
1
x
0
>
... Range 000h ...3fdh
Response:
none
Example: :r1100
100h = image starts at line 257
L
If dual column binning is activated, r1 is doubled
within the camera logic.
6.6.2 Number of lines
Register r3 defines the number of lines to output.
Command:
:r3<x
2
x
1
x
0
>
<x
2
x
1
x
0
>
... Range 000 h ...3ffh
Response: none
Example:
:r3200
200h = display 513 lines
L
The sum of r1 and r3 must be
≤
0x3ff/1023 or
0x1ff/511 if dual column binning is activated!