ACM100
0x01 Min Tint
Bit Definition
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
1
0
1
TINT_SKIP
MIN_TINT
The Min Tint register is used to specify the minimum integration period available to the algorithm controlling Autobrite as well as
controlling several other features. The bits are defined as follows:
[15:12] TINT_SKIP: This field specifies the frequency at which Tint updates made when automatic control of Tint is enabled.
This field is set to a 2 frames by default to accommodate the one frame latency between calculation of
a new Tint value and its taking effect. Note that the Tint will settle in the same number and size of steps,
but will take longer to settle. To change the size of steps that Tint will use to adjust, use the AB_K
parameter.
[11:0] MIN_TINT:
This field is used to specify the minimum integration period that the Autobrite algorithm will use to control
the camera. It is only valid when manual control of the integration period is disabled. It is specified as
the number of row periods you wish to have the sensor integrate. The maximum integration is 525 rows.
Changes to this parameter will take affect on the next full frame of video.
0x02 Max Tint
Bit Definition
15
1
14
1
13
12
0
11
0
10
0
9
1
8
0
7
0
6
0
5
0
4
0
3
1
2
1
1
0
0
0
0
Reserved
Reserved
MAX_TINT
The Max Tint register is used to specify the maximum integration period available to the algorithm controlling Autobrite as well
as controlling several other features. The bits are defined as follows:
These bits are reserved for future use and should not be set. To ensure compatibility with future
releases, we recommend using a read/modify/write operation to preserve the status of this bit.
[15:12] Reserved:
This field is used to specify the maximum integration period that the Autobrite algorithm will use to
control the camera. It is only valid when manual control of the integration period is disabled. It is specified
as the number of row periods you wish to have the sensor integrate. Changes to this parameter will take
affect on the next full frame of video.
[11:0] MAX_TINT:
0x03 Merge Bins Control 1
Bit Definition
15
0
14
0
13
12
0
11
0
10
0
9
1
8
0
7
0
6
5
0
4
0
3
0
2
0
1
0
0
0
1
0
Reserved
Q_Slope
Max_Q
The Merge Bins Control register is used to enable and control the behavior of the merge bins contrast enhancement algorithm.
The merge bins algorithm can be controlled by specifying a Q function that indicates how strongly gray levels should be affected
by the algorithm. The Q function can be specified in one of two methods. The first method assumes that a maximum Q is specified
for gray level zero and that this value is reduced for increasing gray levels at a specified slope until a minimum Q value is reached.
The alternative is to manually load a table which will specify a unique Q value for each gray level.
The bits are defined as follows:
This bit is reserved for future use and should not be set. To ensure compatibility with future releases,
we recommend using a read/modify/write operation to preserve the status of this bit.
[15] Reserved:
The Q Slope field specifies the rate at which the Q value is reduced for increasing gray shades. This
field is cumulatively subtracted from the initial, maximum value
[14:12] Q_Slope:
Document Number: 001-05325 Rev. **
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