AS0260CSSC28SUD20 datasheet(18/83 Pages) ONSEMI

18 / 83 page

AS0260 DS Rev. G Pub. 5/15 EN

©Semiconductor Components Industries, LLC, 2015.

AS0260: 1/6-Inch 1080P High-Definition (HD) System-On-A-Chip (SOC) Digi-

tal Image Sensor

Figure 11:

Imaging a Scene

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 directions, the image can be flipped in the vertical direction

and/or mirrored in the horizontal direction.

The image output size is set by programming row and column start and end address

variables.

When the sensor is configured to mirror the image horizontally, the order of pixel

readout within a row is reversed, so that readout starts from the last column address and

ends at the first column address. Figure 12 shows a sequence of 3 pixels being read out

with normal readout and reverse readout (Bayer8 + 2 mode shown). This change in

sensor core output is corrected by the IFP.

Figure 12:

Three Pixels in Normal and Column Mirror Readout Mode

When the sensor is configured to flip the image vertically, the order in which pixel rows

are read out is reversed, so that row readout starts from the last row address and ends at

the first row address. Figure 13 on page 14 shows a sequence of 6 rows being read out

with normal readout and reverse readout. This change in sensor core output is corrected

by the IFP.

Lens

Pixel (0,0)

Row

Readout

Order

Column Readout Order

Scene

Sensor (rear view)

DOUT[7:0]

LINE_VALID

Normal readout

(9:2)

(1:0)

(9:2)

(1:0)

(9:2)

(1:0)

Reverse readout

(1:0)

(9:2)

(1:0)

(9:2)

(1:0)

DOUT[7:0]

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