SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS

March 4, 2000

Version 1.0

22

Table 16 I

Sub-

address

(hex)

Register

Default

(hex)

Read/

Write

Descriptions

00

GAIN

00

RW

AGC gain control

GC[7:6] – Unimplemented.

GC[5:0] – The current gain setting.

This register is updated automatically if AGC is enabled. The internal controller stores the

optimal gain value in this register. The current value is stored in this register if AGC is not

enabled.

01

BLUE

80

RW

Blue gain control

BLU[7] – “0” decrease gain, “1” increase gain.

BLU[6:0] – blue channel gain balance value.

Note: This function is not available on the OV6130 image sensor.

02

RED

80

RW

Red gain control

RED[7] – “0” decrease gain, “1” increase gain.

RED[6:0] – red channel balance value.

Note: This function is not available on the OV6130 image sensor.

03

SAT

80

RW

Color saturation control

SAT[7:3] – Saturation adjustment. “F8h” is highest and “00h” is lowest.

SAT[2:0] – Unimplemented.

Note: This function is not available on the OV6130 image sensor.

04

Rsvd 04

××

–

Reserved

05

CTR

48

RW

Contrast control

CTR[7] – selects gain at the dark area. “0” – gain=0.5 and “1” – gain=1.

CTR[6:4] – reserved.

CTR[3:0] – Contrast adjustment. “FFh” is highest and “00h” is lowest.

06

BRT

80

RW

Brightness control

BRT[7:0] – Brightness adjustment. “FFh” is highest and “00h” is lowest.

07

SHP

C6

RW

Sharpness control

SHP[7:4] – Coring adjustment. Range: 0~80mV with step 5mV.

SHP[3:0] – Strength adjustment. Range: 0~8

× with step 0.5×.

08-0B

Rsvd 08-0B

××

–

Reserved

0C

ABLU

20

RW

White balance background: Blue channel

ABLU[7:6] – rsvd

ABLU[5] – “0” decrease background blue component, “1” increase background blue

component

ABLU[4:0] - White balance blue ratio adjustment

Note: This function is not available on the OV6130 image sensor.

0D

ARED

20

RW

White balance background: Red channel

ARED[7:6] – rsvd

ARED[5] – “0” decrease background red component, “1” increase background red

component

ARED[4:0] - White balance red ratio adjustment

Note: This function is not available on the OV6130 image sensor.

0E

COMR

0D

RW

Common control R

COMR[7] – Analog signal 2x gain control bit. “1” - Additional 2x gain, “0” - normal.

COMR[6:0] – Reserved.

0F

COMS

05

RW

Common control S

COMS[7:6] – Reserved

COMS[5:4] – select the lowest signal used in automatic black level expanding (or

automatic brightness). “00” – lowest, “11” – highest and image is brighter.

COMS[3:2] – select highest luminance level to be available in AWB control. “00” –