ov7620 OmniVision Technologies, Inc, ov7620 Datasheet - Page 48

• Manufacturer Part Number: ov7620
• Description: Single-chip Cmos Vga Color Digital Camera
• Manufacturer: OmniVision Technologies, Inc

OV7620/OV7120 Product Specifications - Rev. 1.2 (7/10/01)
Register 70 - rw: Common Control K
Register 71 - rw: Common Control J
Register 72- rw: Horizontal Sync 1st Edge shifting
Bits
Default
Bits
Default
Bits
Default
COMK7 - “1” HREF edges coincident (no delay) with PCLK negative/falling edges (COMD6 must be set to
COMK6 - Output port drive current additional 2x control bit.
COMK5 - Reserved.
COMK4 - Selects ZV port timing. “1” VSYNC output ZV port vertical sync signal. “0” normal TV vertical
COMK3 - Accelerated saturation mode for camera mode change. (QVGA, 8 Bit output, CCIR 656 mode
COMK2 - Reserved.
COMK1 - AWB update rate selection. “1” fast mode; “0” slow mode.
COMK0 - Set to “1” in single line mode, otherwise set to “0” and set COMG4 to disable.
COML7 - Auto Brightness update rate: “1” - Slow mode; “0” - fast mode.
COML6 - Gated PCLK selection. “1” - Enables PCLK gated by HREF; “0” - PCLK is free running clock
COML5 - Swap HREF output pin with CHSYNC. “1” - HREF pin output CHSYNC signal; “0” - No swap.
COML4 - Swap CHSYNC output pin with HREF. “1” - CHSYNC pin output HREF signal; “0” - normal out-
COML<3:2>- Highest 2 bit for HSYNC rising edge shift control, combined with register [72]
COML<1:0>- Highest 2 bit for HSYNC falling edge shift control, combined with register [73]
HSDY<7:0> - Lower 8 bit control for shifting horizontal sync CHSYNC first edge. Range is [000] - [3FF].
COMK7
COML7
HSDY7
1
0
0
“0”). “0” HREF edge occurs 10 ns after PCLK positive/rising edge.
sync signal.
and Progressive Scan Mode). 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.
put.
Every count equals 1 PCLK.
COMK6
COML6
HSDY6
0
0
0
COMK5
COML5
HSDy5
0
0
0
COMK4
COML4
HSDY4
0
0
1
Preliminary
COMK3
COML3
HSDY3
0
0
0
COMK2
COMK2
HSDY2
0
0
1
Company Confidential
OMNIVISION TECHNOLOGIES INC.
COMK1
COML1
HSDY1
0
0
0
COMK0
COML0
HSDY0
1
0
0