AK4160 Datasheet, PDF (34/40 Pages) Asahi Kasei Microsystems – 16-channel Capacitive Touch Sensor IC

[AK4160]
Debounce Control Register (DEB)
Address 0x71 (W/R) Default 0x00
Description
D7
Debounce Control
DEBT[3]
D6
DEBT[2]
D5
DEBT[1]
D4
DEBT[0]
D3
DEBR[3]
D2
DEBR[2]
D1
DEBR[1]
D0
DEBR[0]
Bits
Name
Description
D7-D4
DEBT
Debounce Count Setting of the touch judgment
When the touch recognition is consecutive, it is judged as “Touched”.
The consecutive time is set by these bits.
D3-D0
DEBR
Debounce Count Setting of the release judgment
When the release recognition is consecutive, it is judged as “Released”.
The consecutive time is set by these bits.
The condition to use both the multi touch prohibition function and the debounce function: DEBT ≥ DEBR
These bits can not be changed by the serial I/F in run-mode.
Environment Filter Control Register (EFC)
Address 0x72 (W/R) Default 0x00
Description
D7
Environment Filter Control EUP[5]
D6
EUP[4]
Address 0x73 (W/R) Default 0x00
Description
D7
Environment Filter Control EDP[5]
D6
EDP[4]
D5
EUP[3]
D5
EDP[3]
D4
EUP[2]
D4
EDP[2]
D3
EUP[1]
D3
EDP[1]
D2
EUP[0]
D2
EDP[0]
D1
EUR[1]
D1
EDR[1]
D0
EUR[0]
D0
EDR[0]
Bits
Name
Description
D7-D2
EUP
Operation Interval of the Environmental correction filter
(measurement > reference)
Operation at Each “Output Rate × (1+EUP)”, (EUP = 0~63)
Output Rate = Sampling Rate × NF2S (Addr 0x70)
D1-D0
EUR
Operation Coefficient of the Environmental correction filter
(measurement > reference)
reference = reference – (reference – measurement) / (2^(EUR+1)), (EUR = 0~3)
This bits can not be changed by the serial I/F in run-mode.
Bits
Name
Description
D7-D2
EDP
Operation Interval of the Environmental correction filter
(measurement < reference)
Operation at Each “Output Rate × (1+EDP)”, (EDP = 0~63)
Output Rate = Sampling Rate × NF2S (Addr 0x70)
D1-D0
EDR
Operation Coefficient of the Environmental correction filter
(measurement < reference)
reference = reference – (reference – measurement) / (2^(EDR+1)), (EDR = 0~3)
These bits can not be changed by the serial I/F in run-mode.
MS1313-E-01
- 34 -
2011/11