OV7620 datasheet(38/60 Pages) ETC

38 / 60 page

OV7620 Product Specifications - Rev. 1.2 (5/13/00)

OMNIVISION TECHNOLOGIES INC.

Preliminary Company Confidential

MIDL<7:0>- read only, always returns “A2”

These two registers are reserved for internal use. Write data to these registers will not function.

COME7 - Modified CCIR656 format vertical sizing enabled. “1” will enable vertical windowing function. “0”

will limit vertical size to 480 lines - unchanged by [19] and [1B ].

COME6 - Field luminance average signal generation enable.Value is stored in register [7C]

COME5 - “1” First stage aperture correction enable. Correction strength will be decided by register [07]. “0”

disable first stage aperture correction.

COME4 - “1” Second stage aperture correction enable. Correction strength and threshold value will be

decided by register 26 bit 7 ~ register 26 bit 4.

COME3 - AWB smart mode enable. 1 - Drop out pixel when compare pixel red, blue and green component

level to change register [01] and [02], which luminance level is higher than presetting level and

lower than presetting level, this two level is set by register [0F]. 0 - calculate all pixels to get

AWB result. Valid only when register 13 bit 0=1 and register 12 bit 2=1

COME2 - Reserved.

COME1 - AWB fast/slow mode selection. “1” - AWB is always fast mode, that is register [01] and [02] is

changed every field/frame. “0” AWB is slow mode, [01] and [02] change every 16/64 field/

frame decided by register 70 bit 1. When AWB enable, register 12 bit 2=1, AWB is working as

fast mode at first 1024 field/frame, than as slow mode later.

COME0 - Digital output driver capability increase selection: “1” Double digital output driver current; “0” low

output driver current status.

Y6-Y0: Y channel digital output offset adjustment. Range: +127mV ~ -127mV. If COMG2=0, this register

will be updated by internal auto A/D BLC circuit, and write a value to this register with SCCB

has no effect. If COMG2=1, Y channel offset adjustment will use the register stored value

which can be changed by SCCB. If COMF1=0, this register has no adjustment effect to A/D

output data. If output RGB raw data, this register will adjust R/G/B data.

Y7: Offset adjustment direction 0 - Add Y[6:0]; 1 - Subtract Y[6:0].

Bits

COME7

COME6

COME5

COME4

COME3

COME2

COME1

COME0

Default

Bits

Default

OV7620 Datasheet(PDF) 38 Page - List of Unclassifed Manufacturers