OV6630 Datasheet, PDF (25/29 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA

21
YOFF
22
UOFF
23
CLKC
24
AEW
25
AEB
26
COMF
March 4, 2000
SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS
COME[2] – reserved.
COME[1] – AWB fast/slow mode selection. “1” - AWB is always fast mode, that is
register [01] and [02] is changed every field. “0” AWB is slow mode, [01] and [02]
change every 16/ 64 field decided by COMK[1]. When AWB enable, COMA[2]=1,
AWB is working as fast mode until it reaches stable, than as slow mode.
COME[0] – Digital output driver capability increase selection: “1” Double digital
output driver current; “0” low output driver current status.
Note: COME[3] (AWB smart mode), COME[2] (AWB stop), and COME[1] (AWB
fast/slow) are not programmable on the OV6130 image sensor.
80
RW Y channel offset adjustment
YOFF[7] – Offset adjustment direction 0 - Add Y[6:0]; 1 -Subtract Y[6:0].
YOFF[6:0] –Y channel digital output offset adjustment. Range: +127 ~ -127. If
COMG[2]=0, this register will be updated by internal circuit. Write a value to this
register through I²C has no effect. COMG[2]=1, Y channel offset adjustment will use
the stored value which can be changed through I²C. This register has no effect to A/D
output data if COMF[1]=0. If output RGB raw data, this register will adjust R/G/B
data.
80
RW U Channel offset adjustment
UOFF[7] – Offset adjustment direction: 0 - Add U[6:0]; 1 - Subtract U[6:0].
UOFF[6:0] – U channel digital output offset adjustment. Range: +128 ~ -128. If
COMG[2]=0, this register will be updated by internal circuit. Write a value to this
register through I²C has no effect. COMG[2]=1, U channel offset adjustment will use
the stored value which can be changed through I²C. This register has no effect to A/D
output data if COMF[1]=1. If output RGB raw data, this register will adjust R/G/B
data.
Note: This function is not available on the OV6130 image sensor.
04
RW Oscillator circuit control
CLKC[7:6] – Select different crystal circuit power level (“11” = minimum).
CLKC[5:0] – reserved
33
RW Automatic exposure control: Bright pixel ratio adjustment
AEW[7:0] – Used as calculate bright pixel ratio. OV6630/OV6130 AEC algorithm is
count whole field bright pixel (its luminance level is higher than a fixed level) and
black pixel (its luminance level is lower than a fixed level) number. When
bright/black pixel ratio is same as the ratio defined by register [25] and [26], image
stable. This register is used to define bright pixel ratio, default is 25%, each LSB
represent step: 0.5% Change range is: [01] ~ [CA]; Increase AEW[7:0] will increase
bright pixel ratio. For same light condition, the image brightness will increase if
AEW[7:0] increase.
Note: AEW[7:0] must combine with register [26] AEB[7:0]. The relation must be as
follows: AEW[7:0] + AEB[7:0] > [CA].
97
RW Automatic Exposure Control: Black pixel ratio adjustment
AEB[7:0] – used as calculate black pixel ratio. OV6630 AEC algorithm is count whole
field/ frame bright pixel (its luminance level is higher than a fixed level) and black
pixel (its luminance level is lower than a fixed level) number. When bright/black
pixel ratio is same as the ratio defined by register [25] and [26], image stable. This
register is used to define black pixel ratio, default is 80%, each LSB represent step:
0.5%; Change range is: [01] ~ [CA]; Increase AEB[7:0] will increase black pixel
ratio. For same light condition, the image brightness will decrease if AEB[7:0]
increase.
Note: AEB[7:0] must e combined with register [25] AEW[7:0]. The relation must be as fol-
lows: AEW[7:0] + AEB[7:0] > [CA].
B0
RW Common control F
COMF[7:4] – reserved.
COMF[3] – UV offset difference. “1” use separate offsets for U and V; “0” use one
offset for both U and V.
COMF[2] – Digital data MSB/LSB swap. “1” LSB→bit7, MSB→bit0; “0” normal.
Version 1.0
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