PixArt Imaging Inc.

PAW3101DB

CMOS Optical Mouse Sensor

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4

PixArt Imaging Inc.

V3.1 May. 2008

3. Registers and Operation

The released registers of the mouse sensor can be programmed via a serial port interface. The user can modify

released DSP configuration and read motion data from these registers. Some registers not being listed are

reserved not allowed to be modified.

3.1 Registers

Address

Name

R/W Reset Value

Data Type

0x00

Operation_Mode1 R/W

0x00

Bit field

0x01

Product_ID1

R

0x01

Bit field

0x02

Delta_Y

R

-

Eight bits 2’s complement number

0x03

Delta_X

R

-

Eight bits 2’s complement number

0x04

Image_Quality

R

-

Eight bits unsigned integer

0x05

|

0x13

-

-

-

Reserved for future use

0x14

Product_ID2

R

0x10

Eight bits 11:4] number with the product identifier

0x15

Product_ID3

R

0x1X

Four bits[3:0] number with the product identifier

Reserved[3:0] number is reserved for future use

0x16

Motion_Status

R

-

Bit field

0x17

Delta_X

R

-

Eight bits 2’s complement number

0x18

Delta_Y

R

-

Eight bits 2’s complement number

0x19

Image_Quality

R

-

Eight bits unsigned integer

0x1A

Operation_Mode2 R/W

-

Bit field

0x1B

Configuration

R/W

-

Bit field

0x1C

|

0x3F

-

-

-

Reserved for future use

0x40

Operation_Mode3 R/W

0x20

Bit field

0x41

Product_ID4

R

0x41

Bit field

0x42

Delta_Y

R

-

Eight bits 2’s complement number

0x43

Delta_X

R

-

Eight bits 2’s complement number

0x44

Image_Quality

R

-

Eight bits unsigned integer