PixArt Imaging Inc.

PAN3204DB

Wireless Optical Mouse Sensor

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PixArt Imaging Inc.

E-mail: fae_service@pixart.com.tw

V3.0, Apr. 2008

0x0D

Image_ Threshold

Bit

7

6

5

4

3

2

1

0

Field

Imgqa_th[7:0]

Usage

Image_ Threshold register allows the user to set image threshold. The mouse sensor calculates data to

Delta_X and Delta_Y registers when image quality (please see Image_Quality register) is larger than

image threshold.

Field Name

Description

Notes

Imgqa_th[7:0]

Image threshold: 0 (High recognition rate) ~ 255 (Low recognition rate). The

minimum level for normally working is 10. Default is 00001010.

0x0E

Image_Recognition

Bit

7

6

5

4

3

2

1

0

Field

pk_wt[2:0]

0

Imgqa_df[3:0]

Usage

Image_Recognition register allows the user to set recognition rate.

Field Name

Description

pk_wt[2:0]

Peak threshold weighting: 0 (Low recognition rate) ~ 7 (High recognition rate).

Default is 111.

Bit 4

MUST always be 0

Notes

Imgqa_df[3:0]

Image qualification threshold difference: 0 (High recognition rate) ~ 15 (Low

recognition rate). Default is 1001.