LM9833 datasheet(14/42 Pages) NSC

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SENSOR PIXEL CONFIGURATION

Optical Black Pixels Start

nnn nnnnnn pixels (0 - 255)

Optical Black Pixels End

nnn nnnnnn pixels (0 - 255)

Active Pixels Start - MSB

n nnnnnn pixels (0 - 16383)

Set to the same value as register Data Pixels Start.

Active Pixels Start - LSB

nnn nnnnn

Line End - MSB

n nnnnn

n pixels (0 - 16383)

This selects the pixel count at which the current line is

ended and the next line begins. This determines the

integration time of one line.

Line End - LSB

nnn nnnnn

PIXEL DATA RANGE TO PROCESS

Data Pixels Start - MSB

n nnnnn

n pixels (Active Pixels Start - 16383)

This selects the start of the range of pixels transmitted

to the PC and determines the pixel location where

offset and shading correction begins (pixel 0 in the

DataPort). This value must be >= Active Pixels Start

Data Pixels Start - LSB

nnn nnnnn

Data Pixels End - MSB

n nnnnnn pixels (Data Pixels Start - [Line End - 20])

This selects the end of the range of pixels transmitted

to the PC. This value must be <= [Line End - 20]

Data Pixels End - LSB

nnn nnnnn

COLOR MODE SETTINGS

AFE Operation

3 Channel or 1 Channel

0003 Channel Pixel Rate Color

0013 Channel Line Rate Color

1001 Channel Grayscale

1011 Channel Color

1 Channel Grayscale Input Source

(1 Channel Color always uses the

Blue Channel as the input)

0 0

Red Channel

0 1

Green Channel

1 0

Blue Channel

N/A

TRRED (=TR1) position

(3 Channel Line Rate Mode only)

1st TR pulse position (inside Ø1 high)

2nd TR pulse position (inside Ø1 low)

TRGREEN (=TR2) position

(3 Channel Line Rate Mode only)

1st TR pulse position (inside Ø1 high)

2nd TR pulse position (inside Ø1 low)

TRBLUE (=CP2) position

(3 Channel Line Rate Mode only)

1st TR pulse position (inside Ø1 high)

2nd TR pulse position (inside Ø1 low)

3 Channel Line Rate TRRED drop

(3 Channel Line Rate Mode only)

0 0 Do not drop any TRRED pulses

01Drop 1 TRRED pulse (double integration time)

10Drop 2 TRRED pulses (triple integration time)

11N/A

3 Channel Line Rate TRGREEN drop

(3 Channel Line Rate Mode only)

0 0

Do not drop any TRGREEN pulses

0 1

Drop 1 TRGREEN pulse (double integration time)

1 0

Drop 2 TRGREEN pulses (triple integration time)

N/A

3 Channel Line Rate TRBLUE drop

(3 Channel Line Rate Mode only)

0 0

Do not drop any TRBLUE pulses

0 1

Drop 1 TRBLUE pulse (double integration time)

1 0

Drop 2 TRBLUE pulses (triple integration time)

N/A

Triple TR output

Normal operation

Outputs single TR pulse on TR1, TR2, and CP2 pins

RESERVED

Reserved

000 00000Write 00 to this register

Address

Function

Value

LM9833 Datasheet(PDF) 14 Page - National Semiconductor (TI)

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