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S INGLE IC CMOS COLOR AND B/W DIGIT AL CAMERAS
March 4, 2000
Version 1.0
29
4F
YMXB
00
RW
YUV matrix control (Secondary)
YMXB[7:6] – Y channel delay selection: 0 ~ 3tp
YMXB[5] – reserved.
YMXB[4] – UV 2tp delay selection
YMXB[3] – reserved.
YMXB[2] – Enable UV average mode.
YMXB[1:0] – Color killer control. “00” no color kill, “11” strongest.
Note:
This function is not available on the OV6130 image sensor.
Reserved
Common control Q
COMQ[7] – reserved.
COMQ[6] – Central 1/4 image area rather whole image used to calculate AWB. “0”
uses whole image area to calculate AWB.
COMQ[5] – reserved.
COMQ[4] - Select smart AWB. AWB algorithm will not count pixels with strong color.
COMQ[3] – Enable AWB using manual input AWB registers when AWB is switched
from manual to automatic control.
COMQ[2] – reserved.
COMQ[1:0] – Select the maximum AGC.
“00” maximum gain=6dB, step 1/16
“01” maximum gain=12dB, step 1/16
“10” maximum gain=6dB, step 1/16
“11” maximum gain=18dB, step 1/8
Reserved
Internal charge pump control
DBL[7] – “0” disables internal charge pump. “1” enables internal charge pump.
DBL[6:4] – selects the driving capability of internal charge pump. “000” is the smallest
and “111” is the strongest.
DBL[3] – “1” no VSYNC in the field that is dropped.
DBL[2:0] – reserved.
Reserved
Dark current compensation
OFC[7] – reserved
OFC[6] – sign bit of the offset. “0” positive offset and “1” negative offset.
OFC[5:0] – add an offset before AGC to compensate the dark current.
Smart color control
SC[7] – reserved
SC[6] – select smart color. “1” indicates the color saturation will decrease with the
increase of AGC.
SC[5] – select the minimum color saturation in smart color option. “0” the minimum
saturation is 40% of normal value. “1” the minimum saturation is 50% of normal
value.
SC[4:0] – reserved.
Smart AWB control
SAWB[7:4] – reserved
SAWB[3:2] – Lowest chrominance level to be available for AWB control.
SAWB[1:0] – highest chrominance level to be available for AWB control.
Reserved.
50-53
54
Rsvd 50-53
COMQ
××
09
–
RW
55-56
57
Rsvd 55-56
DBL
××
81
RW
RW
58
59
Rsvd 58
OFC
F5
00
RW
RW
5A
SC
28
RW
5B
SAWB
00
RW
5C
Rsvd 5C
13
RW