CHR71000 datasheet(36/54 Pages) AMSOSRAM

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CHR71000

Functional description

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DS000427 • v2-01 • 2026-Mar-18

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7.4.3

Subsampling

Next to windowing, the sensor also supports sub-sampling in y. Sub-sampling in y can be

enabled with a register upload (it's off by default). When sub-sampling is enabled, only every

8th row is read out. The window size in y is divided by 8. Sub-sampling is not possible in the x-

direction because of the parallel output structure (8 columns read out in parallel). Sub-

sampling in x-direction is actually achieved by ignoring data on some outputs (these outputs

can be put in standby in such case).

Information:

• Note that the integration time is specified as a number of line times. If the window size in x is

changed, the time it takes to read out a line also changes. This means that changing the

window size in x also changes the actual integration time.

7.4.4

Invalid frames

A frame is not started if it has invalid settings. Invalid settings are:

•

Start address is bigger than end address in y direction.

•

Start address is bigger than end address in x direction.

•

Start address and/ or end address out of range in y direction.

•

Start address and/ or end address out of range in x direction.

•

Integration time setting is 0

If invalid settings are set through a register upload, the next frame is not started and the sensor

returns to idle state.

CHR71000 Datasheet(PDF) 36 Page - ams-OSRAM AG