MT9V124
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NOT FOR PUBLIC RELEASE
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7
The sensor core uses a Bayer color pattern, as shown in
Figure 5. The even-numbered rows contain green and red
pixels; odd-numbered rows contain blue and green pixels.
Even-numbered columns contain green and blue pixels;
odd-numbered columns contain red and green pixels.
Figure 5. Pixel Color Pattern Detail
Column readout direction
Row readout
direction
Black pixels
First clear
pixel
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gr
B
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
Gb
R
The MT9V124 sensor core pixel array is shown with pixel
(0,0) in the bottom right corner, which reflects the actual
layout of the array on the die. Figure 6 shows the image
shown in the sensor during normal operation.
When the image is read out of the sensor, it is read one row
at a time, with the rows and columns sequenced.
Figure 6. Imaging a Scene
Lens
Pixel (0,0)
Row
Readout
Order
Column Readout Order
Scene
Sensor (rear view)
The sensor core supports different readout options to
modify the image before it is sent to the IFP. The readout can
be limited to a specific window size of the original pixel
array.
By changing the readout order, the image can be mirrored
in the horizontal direction.
The image output size is set by programming row and
column start and end address registers. The edge pixels in the
648 × 488 array are present to avoid edge effects and should
not be included in the visible window.
