Data Sheet

22 Proprietary to OmniVision Technologies, Inc. Version 1.1, March 30, 2007
OV7725 Color CMOS VGA OmniPixel2™ CAMERACHIP™ Sensor
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9E UVADJ0 11 RW
Auto UV Adjust Control 0
Bit[7:4]: Auto UV adjust offset control 4 LSBs
Bit[3:0]: Auto UV adjust threshold control
9F UVADJ1 02 RW
Auto UV Adjust Control 1
Bit[7:3]: Auto UV adjust value
Bit[2]: Reserved
Bit[1]: Auto UV adjust stop control
Bit[0]: Auto UV adjust offset control MSB
A0 SCAL0 00 RW
DCW Ratio Control
Bit[7:4]: Reserved
Bit[3:2]: Vertical down sampling select
00: Bypass
01: 1/2 vertical down sampling
10: 1/4 vertical down sampling
11: 1/8 vertical down sampling
Bit[1:0]: Horizontal down sampling select
00: Bypass
01: 1/2 horizontal down sampling
10: 1/4 horizontal down sampling
11: 1/8 horizontal down sampling
A1 SCAL1 40 RW
Horizontal Zoom Out Control
A2 SCAL2 40 RW
Vertical Zoom Out Control
A3 FIFOdlyM 06 RW FIFO Manual Mode Delay Control
A4 FIFOdlyA 00 RW FIFO Auto Mode Delay Control
A5 RSVD XX – Reserved
A6 SDE 00 RW
Special Digital Effect Control
Bit[7]: Reserved
Bit[6]: Negative image enable
Bit[5]: Gray scale image enable
Bit[4]: V fixed value enable
Bit[3]: U fixed value enable
Bit[2]: Contrast/Brightness enable
Bit[1]: Saturation enable
Bit[0]: Hue enable
A7 USAT 40 RW
U Component Saturation Gain
Gain × 0x40
Table 6 Device Control Register List (Sheet 12 of 13)
Address
(Hex)
Register
Name
Default
(Hex)
R/W Description
Horizontal zoom ratio =
0x40
SCAL1[7:0]
Vertical zoom ratio =
0x40
SCAL2[7:0]