M64285FP Datasheet, PDF (9/26 Pages) Mitsubishi Electric Semiconductor – CMOS Image Sensor(Image inputting systems for gaming devices, Toys, PC interface systems)

Technical Data Sheet
MITSUBISHI
PRELIMINARY
MITSUBISHI CMOS Image Sensor
M64285FP
11.3. Image Capture Mode Register MD (4 bits)
MD
Image Capture Modes
cont. /
snap
0000 B
2D Image
cont.
0100 B
Projection Image
cont.
1000 B
Average Data of All Pixels
snap
Number of Data
BSTRB = 1
BSTRB = 0
32 + 32 x 32
32 x 32
2 + 32+32
32+32
1+1
1
* The MD value of 4 figures is the arrangement of MD3, MD2, MD1, MD0 in this order.
11.3.1. 2D Image Continuous Mode ( MD = 0000 )
2D Image Mode ( MD = 0000 ) : Similar to the ordinary CMOS image sensors, M64285FP
output the 2D (two dimensional) image data projected on the image plane by X-Y address
scanning.
11.3.2. Projection Image Continuous Mode ( MD = 0100 )
Right figure shows the projection operation.
Two dimensional (2D) input image pattern is
illuminating the image plane, and all the pixel
data in each columns and each rows are taken
average followed by 32 column projection data
output and 32 row projection data output in
sequence. It is a kind of Image compression, in
which 1024 bytes output data in the 2D form is
compressed to 64 bytes data. Therefore the
readout time and the processing cost in the
subsequent part is widely reduced. Also, the
data range of projection is the same as the 2D
image data.
2D Image Data
Row Proj.
Column Proj.
Column Projection Image Data
Projection Image Mode ( MD = 0100 ) : The result of the projection processing above is
outputted. The timing for reset and accumulation are the same for all of the pixels, like an
electronic shutter.
11.3.3. Average Data Snapshot Mode ( MD = 1000 )
Average of All Pixels ( MD = 1000 ) : The result of average computation of all the pixels
on the image plane is outputted in one data. It corresponds to overall exposure metering.
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Specifications and information herein are subject to change without notice.
02 / 05 / 01
Ver. 2.2E_01