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OV6620 Fiches technique(PDF) 30 Page - List of Unclassifed Manufacturers

No de pièce OV6620
Description  SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA
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OV6620 Fiches technique(HTML) 30 Page - List of Unclassifed Manufacturers

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OV6620/OV6120
30
Version 1.11
14 May 1999
SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS
OMNIVISION TECHNOLOGIES, Inc.
Advanced Information
Preliminary
2B
FRARL
5E
RW
Frame Rate Adjust Low
FRARL[7:0] - Lowest 8 bit of frame rate adjust control byte. Frame rate adjustment resolution
is 0.21%. Control byte is 10 bit. Every LSB equal decrease frame rate 0.21%. Range is
0.21% - 109%. IF frame rate adjustment enable, COME7 must set to “0”.
2C
Rsvd2C
88
RW
reserved
2D
COMJ
03
RW
Common Control J
COMJ[7:5] - reserved
COMJ[4] - Enable auto black expanding mode.
COMJ[3] - “1” = White Balance update when AGC/AEC stable. “0” = White Balance register
update independent with AEC/AGC.
COMJ[2] - Band filter enable. After adjust frame rate to match indoor light frequency, this bit
enable a different exposure algorithm to cut light band induced by fluorescent light.
COMJ[1] - reserved
COMJ[0] - A/D U and V BLC separate mode. “1” = U and V offset cancelled by different
register. “0” = U V offset cancelled by one common register [2E].
2E
VCOFF
80
RW
V Channel Offset Adjustment
VCOFF[7]: Offset adjustment direction: “0” = Add V[6:0]; “1” = Substrate V[6:0].
VCOFF[6:0] - V channel digital output offset adjustment. Range: +128mV ~ -128mV. If
COMG[2]=0, this register will be updated by internal auto A/D BLC circuit, and write a value
to this register with I2C has no effect. If COMG[2] =1, V channel offset adjustment will use
the register stored value which can be changed by I2C. If COMF[1] =1, this register has no
effect to A/D output data. If output RGB raw data, this register will adjust R/G/B data.
2F-32
Rsvd2F-Rsvd32
xx
-
Reserved
33
CPP
00
RW
Color Processing Parameter Control
CPP[7:6] - reserved
CPP[5] - Luminance gamma on/off. “1” - luminance gamma on; “0” - luminance gamma is 1.
CPP[4:0] - reserved
34
BIAS
A2
RW
Bias Adjustment
BIAS[7:6] - A/D reference level adjustment. [00] - 110% internal full signal range; [01] - 120%,
[10] - 130%, [11] - 140%.
BIAS[5:0] - reserved
35
Rsvd35
80
RW
reserved
36
Rsvd36
48
RW
reserved
37
Rsvd37
41
RW
reserved
38
COMK
81
RW
Common Control K
COMK[7] - HREF edge latched by PCLK falling edge (When COMD[6] = 0). “0” HREF edge is
10 ns after PCLK rising edge.
COMK[6] - Output port drive current additional 2x control bit.
COMK[5] - reserved.
COMK[4] - ZV port Vertical timing selection. “1” VSYNC output ZV port vertical sync signal.
“0” = normal TV vertical sync signal.
COMK[3] - Quick stable mode when camera mode change. After relative control bit set, the
first VS will be the stable image with suitable AEC/AWB setting. “0” - slow mode, after mode
change need more field/frame to get stable AEC/AWB setting image.
COMK[2] - reserved
COMK[1] - AWB stable time selection when in slow mode. “1” - 4 times less time needed to get
stable AWB setting when in slow AWB mode.
COMK[0] -reserved.
39
COML
00
RW
Common Control L
COML[7] - reserved
COML[6] - PCLK output timing selection. 1 -- PCLK valid only when HREF is high; 0 -- PCLK is
free running.
COML[5] - Vertical sync selection, 1 -- Same period between 1st HREF and VS falling edge in
two field; 0 - Different timing period between 1st HREF and VS falling edge
COML[4] - “1” select CHSYNC output from HREF port. “0” normal
COML[3] - “1” select HREF output from CHSYNC port. “0” normal
COML[2] - Tristate all control signal output (FODD, CHSYNC, HREF, PCLK)
COML[1] - Highest 1 bit of horizontal sync starting position, combined with register [3A]
COML[0] - Highest 1 bit of horizontal sync ending position, combined with register [3B]
3A
HSST
0F
RW
Horizontal Sync Start Position
HSST[7:0] - lower 8 bit of horizontal sync starting position, combined with register bit of
COML[1], total 9 bit control. range: [00] -- [FF]. HSEND[8:0] must less than HSST[8:0]
3B
HSEND
3C
RW
Horizontal Sync End Position
HEND[7:0] - lower 8 bit of horizontal sync ending position, combined with register bit of
COML[0], total 9 bit control. range: [00] -- [FF]. HSEND[8:0] must be larger than HSST[8:0]
Subad-
dress
(hex)
Register
Default
(hex)
Read/
Write
Descriptions


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