VS6663CC Datasheet, PDF (40/63 Pages) STMicroelectronics – 1.3 megapixel camera module

Video timing
VS6663CC
6.1.3
Output crop
The x_output_size and y_output_size registers are not intended as the primary cropping
controls.
They are intended to define the position of the LE/FE codes in the CCP2 data frame so that
the sensor does not need to calculate this based on analog crop or binning settings. It
should be expected that the host will set the output sizes to exactly enclose the output
image data. If the host should not do this, the VS6663CC treats the output size as being
calculated from the top left hand corner of the output array. So in the case where output
sizes are smaller than the output data, the data shall be cropped from its right-hand and
lower limits. In the case where larger than the output data, the lines shall be padded out to
the defined output size with undefined data.
Figure 15. Output size within a CCP2 data frame
CCP2 output active line length
FS
2 embedded data lines
x_output_size
Output data
FE
Interframe padding
The number of pixels between the line start and the line end sync codes for:
• RAW8 is a multiple of 4 pixels
• RAW10 is a multiple of 4 pixels for CSI-2 and a multiple of 16 pixels for CCP2
The host must control the x_output_size to ensure that the above criteria is met.
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