PixArt Imaging Inc.
ADBS-A350 Optical Finger Navigation
AD_ATH_HIGH
Access: Read/Write
Address: 0x6e
Reset Value: 0x3a
7
6
5
4
3
2
1
0
Bit
ATH_H
ATH_H
ATH_H
ATH_H
ATH_H
ATH_H
ATH_H
ATH_H
Field
Data Type: Bit field
USAGE: This register is used to set HIGH speed Assert shutter threshold.
Field Name
Description
ATH_H 7:0
Sets HIGH speed assert threshold. Write in hexadecimal value.
Formula (in decimal) = Shutter value / 8.
It is recommended to have hysteresis of 60 to 100 between assert and
de-assert threshold.
AD_DTH_HIGH
Access: Read/Write
Address: 0x6f
Reset Value: 0x40
7
6
5
4
3
2
1
0
Bit
DTH_H
DTH_H
DTH_H
DTH_H
DTH_H
DTH_H
DTH_H
DTH_H
Field
Data Type: Bit field
USAGE: This register is used to set HIGH speed De-assert shutter threshold.
Field Name
Description
DTH_H 7:0
Sets HIGH speed de-assert threshold. Write in hexadecimal value.
Formula (in decimal) = Shutter value / 8.
It is recommended to have hysteresis of 60 to 100 between assert and
de-assert threshold.
AD_ATH_LOW
Access: Read/Write
Address: 0x70
Reset Value: 0x35
7
6
5
4
3
2
1
0
Bit
ATH_L
ATH_L
ATH_L
ATH_L
ATH_L
ATH_L
ATH_L
ATH_L
Field
Data Type: Bit field
USAGE: This register is used to set LOW speed Assert shutter threshold.
Field Name
Description
ATH_L 7:0
Sets LOW speed assert threshold. Write in hexadecimal value.
Formula (in decimal) = Shutter value / 8.
It is recommended to have hysteresis of 60 to 100 between assert and
de-assert threshold.
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
50
PIXART [ PIXART IMAGING INC. ]
