PixArt Imaging Inc.

PAW3101DB

CMOS Optical Mouse Sensor

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8

PixArt Imaging Inc.

V3.1 May. 2008

0x19

Image_Quality

Bit

7

6

5

4

3

2

1

0

Field

Imgqa[7:0]

Usage

Image Quality is a quality level of the mouse sensor in the current frame. Report range 0 ~ 255.

Field Name

Description

Notes

Imgqa[7:0]

Image quality report range: 0(worst) ~ 255(best).

0x1A

Operation_Mode2

Bit

7

6

5

4

3

2

1

0

Field

Reset

PD_enh

0

0

LEDsht_enh

Slp_enh

Slpmu_enh

Wakeup

Usage

Register 0x1A allows the user to change the operation of the mouse sensor. Shown below are the bits,

their default values, and optional values.

Operation_Mode2[2:0]

“0xx” = Disable sleep mode

“110” = Force enter sleep

“101” = Force wakeup from sleep mode

Notes:

1. 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.

2. Only one of these two bits Slpmu_enh and Wakeup can be set to 1 at the one time, and the other

one has to be set to 0. Note that these bits are self-clear.

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 [5:4]

Must always be 00

LEDsht_enh

LED shutter enable/disable

0 = Disable

1 = Enable (Default)

Slp_enh

Sleep mode enable/disable

0 = Disable

1 = Enable (Default)

Slpmu_enh

Manual enter sleep mode, set “1” will enter sleep and this bit will be reset to “0”

Notes

Wakeup

Manual wake up from sleep mode, set “1” will enter wakeup and this bit will be

reset to “0”