PixArt Imaging Inc.
PAW3204DB
Wireless Optical Mouse Sensor
0x0D
Image_ Threshold
Bit
7
6
5
4
3
2
1
0
Field
Imgqa_th[7:0]
Image_ Threshold register allows the user to set image threshold. The mouse sensor calculates data to
Usage Delta_X and Delta_Y registers when image quality (please see Image_Quality register) is larger than
image threshold.
Notes Field Name
Imgqa_th[7:0]
0x0E
Description
Image threshold: 0 (High recognition rate) ~ 255 (Low recognition rate). The
minimum level for normally working is 10. Default is 00001010.
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.
Notes Field Name
Description
Peak threshold weighting: 0 (Low recognition rate) ~ 7 (High recognition rate).
Default is 111.
pk_wt[2:0]
Bit 4
MUST always be 0
Image qualification threshold difference: 0 (High recognition rate) ~ 15 (Low
recognition rate). Default is 1001.
Imgqa_df[3:0]
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
11
V3.0, Apr. 2008
PIXART [ PIXART IMAGING INC. ]
