PixArt Imaging Inc.
ADBS-A350 Optical Finger Navigation
OFN_Engine2
Access: Read/Write
Address: 0x61
Reset Value: 0x89
7
6
5
4
3
2
1
0
Bit
Reserved
Reserved
FPD_Rest_
Wake1
FPD_Rest_
Wake0
FPD_Mot_
Cut
Reserved
PAD_Chk On FPD_SQ_EN
Field
Data Type: Bit field
USAGE: This register is used to set several properties of the sensor related to FPD function.
Field Name
Description
FPD_Rest_Wake1:0 Wakes up from rest with FPD
0 = FPD rest wake up disabled
1 = Wake up when finger is present OR motion is detected
2 = Wake up when finger is present AND motion is detected
FPD_Mot_Cut
In FPD enabled mode, cut off motion when finger is not detected and shutter is
below preset value.
Shutter preset value can configured by SHUT_CUTOFF_THRES in FPD_CTRL
(register 0x75).
0 = Disable FPD_Mot_Cut
1 = Enable FPD_Mot_Cut
PAD_Chk_On
FPD_SQ_EN
Enable this bit for PAD_STATUS check
To improve FPD on low reflectance surface by comparing the instantaneous
Squal value with a threshold set in FPD_SQUAL_THRESH (register 0x78).
0 = Disable FPD_SQ_EN
1 = Enable FPD_SQ_EN
Resolution
Access: Read/Write
Address: 0x62
Reset Value: 0x32
7
6
5
4
3
2
1
0
Bit
WakeRES3
WakeRES2
WakeRES1
WakeRES0
RES3
RES2
RES1
RES0
Field
Data Type: Bit field
USAGE: This register is used to set several properties of the sensor.
Field Name
Description
WakeRES3:0
Sets resolution when sensor wakes up from rest modes. Effective only when
speed switching is enabled.
0x00 : 125 cpi 0x05 : 1250 cpi
0x01 : 250 cpi
0x02 : 500 cpi
0x03 : 750 cpi
0x04 : 1000 cpi
RES3:0
Sets resolution of sensor.
0x00 : 125 cpi 0x05 : 1250 cpi
0x01 : 250 cpi
0x02 : 500 cpi
0x03 : 750 cpi
0x04 : 1000 cpi
If Speed switching is enabled, resolution is automatically switched from
250-500-750-1000-1250.
If speed switching is disabled, this register can be set to any of the available
settings from 0x0 to 0x5.
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
