PixArt Imaging Inc.

PAW3101DB

CMOS Optical Mouse Sensor

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5

PixArt Imaging Inc.

V3.1 May. 2008

3.2 Register Descriptions

0x00

Operation_Mode1

Bit

7

6

5

4

3

2

1

0

Field

Reset

PD_enh

0

0

0

0

0

Slp_enl

Usage

Register 0x00 allows the user to change the operation of the mouse sensor. Shown below are the bits,

their default values, and optional values.

If Slp_enl = 0, after 1 sec not moving during normal mode, the mouse sensor will enter sleep mode,

and keep on sleep mode until moving is detected or wakeup is asserted.

Field Name

Description

Reset

Full chip reset

0 = Normal operation mode (Default)

1 = Full chip reset

PD_enh

Power down mode

0 = Normal operation mode (Default)

1 = Power down mode

Bit [5:1]

MUST always be 00000

Notes

Slp_enl

Sleep mode enable/disable

0 = Enable (Default)

1 = Disable

0x01

Product_ID1

Bit

7

6

5

4

3

2

1

0

Field

PID1[2:0]

Reserved[3:0]

Opstate

Usage

Product ID of the mouse sensor and operation state of the mouse sensor.

Field Name

Description

PID1[2:0]

The product ID is 000

Reserved[3:0]

Reserved for future use

Notes

Opstate

Operation state

0 = Sleep state

1 = Normal state

0x02

Delta_Y

Bit

7

6

5

4

3

2

1

0

Field

Y7

Y6

Y5

Y4

Y3

Y2

Y1

Y0

Usage

Y movement is counts since last report. Absolute value is determined by resolution. Reading clears

the register. Report range –128 ~ +127.