VS6724 datasheet(76/118 Pages) STMICROELECTRONICS

76 / 118 page

Programming model and register description

VS6724

76/118

White balance control

0x121d(MSByte)

0x121e(LSByte)

fpCompiledExposureTime_us

Purpose

Time in µsecond that the system uses

Type

FLOAT

0x1285(MSByte)

0x1286(LSByte)

fpFinalDesiredExposureTime_us

Purpose

Absolute time in µsecond that the system would like to use for correct

exposure, this is the value which is used to control the dampers

Type

FLOAT

Table 28.

Exposure status [read only] (continued)

Index

ExposureStatus [read only]

Table 29.

White balance control

Index

WBControlParameters(1)

0x1380

bWhiteBalanceMode

Default value

<1> AUTOMATIC

Purpose

For setting Mode of the white balance

Type

CODED

possible values

<0> OFF - No White balance, all gains will be unity in this mode

<1> AUTOMATIC - Automatic mode, relative step is computed here

<3> MANUAL_RGB - User manual mode, gains are applied manually

<4> DAYLIGHT_PRESET - DAYLIGHT and all the modes below, fixed

value of gains are applied here.

<5> TUNGSTEN_PRESET

<6> FLUORESCENT_PRESET

<7> HORIZON_PRESET

<8> MANUAL_color_TEMP

<9> FLASHGUN_PRESET

0x1382

bManualRedGain

Default value

0x00

Purpose

User setting for Red Channel gain

Type

BYTE

possible values

0 to 255

Applied_Red_Gain = (1 + bManualRedGain / 128) / MinGain

Where MinGain = the smallest value from either Applied_Red_Gain,

Applied_Green_Gain or Applied_Blue_Gain

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