OV8610 Datasheet, PDF (18/28 Pages) List of Unclassifed Manufacturers – Advanced Information Preliminary

OV8610/OV8110
SINGLE IC CMOS VGA DIGITAL CAMERAS
Sub-
address
(hex)
11
12
13
14
Register
CLKRC
COMA
COMB
COMC
Default Read/
(hex) Write
Descriptions
00
RW Clock rate control
CLKRC[7:6] – Sync output polarity selection
“00” – HSYNC=Neg, CHSYNC=Neg, VSYNC=Pos
“01” – HSYNC=Neg, CHSYNC=Neg, VSYNC=Neg
“10” – HSYNC=Pos, CHSYNC=Neg, VSYNC=Pos
“11” – HSYNC=Pos, CHSYNC=Pos, VSYNC=Pos
CLKRC[5:0] – Clock pre-scalar
CLK = (MAIN_CLOCK / ((CLKRC[5:0] + 1) × 2)) / n
Where n=1 if register [15], COMD[5] is set to “1” and n=2 otherwise.
24
RW Common control A
COMA[7] – SRST, “1” initiates soft reset. All registers are set to default values
and chip is reset to known state and resumes normal operation.
COMA[6] – MIRR, “1” selects mirror image
COMA[5] – AGCEN, “1” enables AGC,
COMA[4] – Digital output format, “0” selects 8-bit: U Y V Y U Y V Y “1” selects
8-bit: Y U Y V Y U Y V
COMA[3] – Select video data output: “1” - select RGB, “0” - select YCrCb
COMA[2] – Auto white balance “1” - Enable AWB, “0” - Disable AWB
COMA[1] – Color bar test pattern: “1” - Enable color bar test pattern
COMA[0] – ADC BLC method : “1” – precise, “0” more stable but less precise
01
RW Common control B
COMB[7] – VSYNC output selection, “1” – no VSYNC when no valid data, “0” –
VSYCN always output.
COMB[6] – AGC/AWB register SCCB update option. “1” – updated immediately
after SCCB input, “0” – updated after VSYNC
COMB[5] - Select data format. “1” - select 8-bit format, Y/CrCb and RGB is
multiplexed to 8-bit Y bus, UV bus is tri-stated, “0” - select 16-bit format
COMB[4] – “1” - enable digital output in ITU-656 format
COMB[3] – CHSYNC output. “0” - horizontal sync, “1” - composite sync
COMB[2] – “1” – Tri-state Y and UV bus. “0” - enable both bus
COMB[1] – “1” - Initiate single frame transfer.
COMB[0] – “1” - Enable auto adjust mode.
Note: COMB[5] is not programmable on the OV8110 image sensor.
00
RW Common control C
COMC[7] – AWB threshold selection. “1” - More stable and less accurate, “0” –
more accurate but less stable.
COMC[6] – UV option. “1” – UV always zero. “0” – normal color mode
COMC[5] – QSVGA digital output format selection. “1” - 400x300; “0” - 800x
600.
COMC[4] – Field/Frame vertical sync output in VSYNC port selection: “1” -
frame sync, only ODD field vertical sync; “0” - field vertical sync, effect in
Interlaced mode
COMC[3] – HREF polarity selection: “0” - HREF positive effective, “1” - HREF
negative.
COMC[2] – gamma selection: “1” - RGB Gamma on ; “0” - RGB gamma is 1.
COMC[1:0] – reserved
OmniVision Technologies, Inc. 930 Thompson Place Sunnyvale, CA 94085 U.S.A.
Tel: [phone] Fax: [phone]
e-mail: [e-mail]
Website: http://www.ovt.com
Version 1.3, August 27, 2001
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