OV2655 View Datasheet(PDF) - OmniVision Technologies, Inc.

Part Name

Description

View to exact match

OV2655

1/5" CMOS UXGA (2 Megapixel) CameraChip™ sensor with OmniPixel3-HS™ technology

OmniVision Technologies, Inc. 

7-1

7 register tables

The following tables provide descriptions of the device control registers contained in the OV2655. For all register

enable/disable bits, ENABLE = 1 and DISABLE = 0. The device slave addresses are 0x60 for write and 0x61 for read.

) table 7-1

ial ly address

n 0x3000

ent a O 0x3001

id in 0x3002

nf h 0x3003

Co VT C 0x3004

r O 0x3005 ~

0x3007

0x300A

o0x300B

(F0x300C

system control registers (sheet 1 of 10)

register name

AGC[7:0]

AGCs[7:0]

AEC[15:8]

AEC[7:0]

AECL[7:0]

default

value

0x00

0x00

0x00

0x01

0x00

R/W

RW

RW

RW

RW

RW

description

Auto Gain Control

Bit[7:0]: Actual Gain

Range from 1x to 32x

Gain = (Bit[7]+1) x (Bit[6]+1) x (Bit[5]+1) x

(Bit[4]+1) x (1+Bit[3:0]/16)

Auto Gain Control

Bit[7:0]: Actual Gain

Range from 1x to 32x Gain =

(Bit[7]+1) x (Bit[6]+1) × (Bit[5]+1)

× (Bit[4]+1) × (1+Bit[3:0]/16)

Set Auto1[2] (R0x3013[2]) = 0 to disable

AGC.

Auto Exposure Control - AEC[15:8]

Auto Exposure Control - AEC[7:0]

AEC[15:0]:

Tex = Tline × AEC[15:0]

Tline < Tex < 1 frame period

The maximum exposure time will be 1 frame

period even if Tex is set longer than 1 frame

period. Set Auto1[0] (R0x3013[0]) = 0 to

disable AEC.

Manual Extreme Bright Exposure Control -

AECL[7:0]

In extremely bright conditions where Tex

must be less than Tline, the exposure time

may be set manually by this control.

Tex = Tline – L1AEC[7:0] steps

Tex min. < Tex < Tline

Set Auto2[1] (R0x3014[1]) = 1 to enable

manual AECL.

RSVD

–

–

Reserved

PIDH

PIDL

SCCB ID

0x26

0x55

0x60

R

Product ID MSBs (read only)

R

Product ID LSBs (read only)

RW

SCCB ID

07.01.2008

PRELIMINARY SPECIFICATION

proprietary to OmniVision Technologies

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