AK4160 AKM [Asahi Kasei Microsystems], AK4160 Datasheet - Page 33

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

IRQ Mask Register (IRQMn: n=0~2)
Noise Filter Control Register (NFC)
These bits can not be changed by the serial I/F in run-mode.
MS1313-E-01
Address 0x66/0x6A/0x6E (W/R) Default 0x00
Address 0x67/0x6B/0x6F (W/R) Default 0x00
Address 0x70 (W/R) Default 0x00
Noise Filter Control
D7-D6
D5-D4
D3-D2
15-0
Bits
Bits
D1
D0
Description
Description
Description
IRQ Mask
IRQ Mask
IRQM
Name
Name
NF2S
NF1S
LCH
RCH
RIM
IRQM[15]
NF2S[1]
IRQM[7]
Intended channel setting of Touch/Release Interrupt
Number of samples at the noise filter (the second filter)
Number of samples at the noise filter (the first filter)
Initial Reference Setting Selection
Priority Setting of sense terminals without multi touch function
Release Operation Setting of sense terminals without multi touch function
D7
D7
D7
0: No Target of Interrupt
1: Target of Interrupt
00: 4 samples
01: 6 samples
10: 10 samples
11: 18 samples
00: 4 samples
01: 6 samples
10: 10 samples
11: 18 samples
00: User Setting (reference value set by Addr 0x80-0x9F REFn bits)
01: First Measurement Value as a Reference
10: 31/32 of First Measurement Value as a Reference
11: 30/32 of First Measurement Value as a Reference
0: The sense terminal to touch most strongly is selected.
1: The sense terminal of the youngest number is selected.
0: The next touch judgment is not executed until all the sense terminals are
1: When the sense terminal that is judged as touched is released, the next touch
released once.
judgment is executed.
IRQM[14]
NF2S[0]
IRQM[6]
D6
D6
D6
IRQM[13]
NF1S[1]
IRQM[5]
- 33 -
D5
D5
D5
IRQM[12]
NF1S[0]
IRQM[4]
D4
D4
D4
Description
Description
IRQM[11]
IRQM[3]
RIM[1]
D3
D3
D3
IRQM[10]
IRQM[2]
RIM[0]
D2
D2
D2
IRQM[9]
IRQM[1]
LCH
D1
D1
D1
IRQM[8]
IRQM[0]
[AK4160]
RCH
2011/11
D0
D0
D0