AK4160 AKM [Asahi Kasei Microsystems], AK4160 Datasheet - Page 34

• Manufacturer Part Number: AK4160
• Description: 16-channel Capacitive Touch Sensor IC
• Manufacturer: AKM [Asahi Kasei Microsystems]

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