STV0974 datasheet(47/69 Pages) STMICROELECTRONICS

47 / 69 page

Functional description

STV0974

47/61

Table 31: Exposure management [Register group 4]

Name

Index

R/W

State

code

Data

type

Format

default

Description

AC Frequency

0xA400

R/W

S I

DDDD.DDDD

0011.0010

AC Frequency in Hz

Exposure

weighting

0xA401

R/W

RRRR.RRDD

0000.0000

Zone weight:

[3]: Reserved

[2]: Backlit

[1]: Centered

[0]: Flat

Exposure

compensation

0xA402

R/W

DDDD.DDDD

0001.1001

One unit of compensation is

equivalent to 1/3 EV.

Default value is equivalent to 0 EV.

[Default - 2] is equivalent to -2/3

EV.

Valid range is 0 to 36

Table 32: White balance management [register group 5]

Name

Index

R/W

State

code

Data

type

Format

default

Description

White Balance

Mode

0xA500

R/W

RRRR.DDDD

0000.0001

[15-9]: Reserved

[8]: Reserved

[7]: Reserved

[6]: Reserved

[5]: Reserved

[4]: User manual (using registers

below)

[3]: Reserved

[2]: Reserved

[1]: Automatic

[0]: Off

Manual White

Balance

Red channel

0xA501

R/W

DDDD.DDDD

0000.0000

White balance user setting for the

red channel gain.

Contact ST for support.

Manual White

Balance

Green channel

0xA502

R/W

DDDD.DDDD

0000.0000

White balance user setting for the

green channel gain.

Contact ST for support.

Manual White

Balance

Blue channel

0xA503

R/W

DDDD.DDDD

0000.0000

White balance user setting for the

blue channel gain.

Contact ST for support.

STV0974 Datasheet(PDF) 47 Page - STMicroelectronics

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