CSG14K_CSG8K datasheet(74/113 Pages) AMSCO

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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v1-00 • 2020-Dec-15

112

│ 73

Attention

Because the constant global sampling time is expressed in relative time units (TU), whenever

TIME_UNIT is changed, GLOB_TIME must be adapted accordingly (inverse proportional).

Dual Exposure HDR

Figure 86:

HDR Registers

Reg. Name

Bank

Addr

Bits

Description

DUAL_EXPOSURE

[0]

0: Dual Exposure off

1: Dual exposure on

DUAL_EXP_GROUPING

[0]

0: Default grouping (mono)

1: Paired grouping (color mode)

EXP_TIME_L

14-15

[15:0]

Exposure Time of group L

EXP_TIME_S

16-17

[15:0]

Exposure Time of group S

In dual exposure mode, one image can have 2 different exposure times, divided in 2 row groups. In

the camera system, this image can be translated into an HDR image containing both details in dark

and bright areas.

In the effective pixel array, the pixels are split into two exposure groups. When

DUAL_EXP_GROUPING is set low:

●

Exposure group S: all pixels of rows 0+4i and 2+4i

●

Exposure group L: all pixels of rows 1+4i and 3+4i

When DUAL_EXP_GROUPING is set high, the exposure groups use adjacent row pairs:

●

Exposure group S: all pixels of rows 0+4i and 1+4i

●

Exposure group L: all pixels of rows 2+4i and 3+4i

The latter should be used in color mode, keeping the Bayer pattern complete. Figure 87 shows how

the rows of the pixel array are divided into two exposure groups.

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