AK4160 AKM [Asahi Kasei Microsystems], AK4160 Datasheet - Page 27

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

Charge Current Register (CCn: n=0~15)
These bits can not be changed by the serial I/F in run-mode.
Charge Time Register (CTn: n=0, 2, 4, 6, 8, 10, 12, 14)
These bits can not be changed by the serial I/F in run-mode.
GPIO Date Register (GPDT)
GPIO Enable Register (GPEN)
MS1313-E-01
Address 0x45-0x54 (W/R) Default 0x00
Address 0x55-0x5C (W/R) Default 0x00
Address 0x5D (W/R) Default 0x00
Address 0x5E (W/R) Default 0x00
GPIO Enable Register
GPIO Data Register
D7-D6
D5-D0
D6-D4
D2-D0
D7-D0
D7-D0
D7,D3
Charge Current
Bits
Bits
Bits
Bits
Charge Time
Description
Description
Description
Description
Reserved
Reserved
CTn+1
GPDT
GPEN
Name
Name
Name
Name
CCn
CTn
GPDT[7]
GPEN[7]
Reserved
Reserved
Reserved: This bit should be written “0”.
The charge current from the terminal CSn is set. 0.556 x CCn x VDD [uA]
Reserved: This bit should be written “0”.
The charge time at the terminal CSn is set. 0.25us~32us = 0.25us x 2
GPIO Output Data Setting
GPIO Enable
D7
D7
D7
D7
Exclusive control is provided for the sense terminal select (SCC Register NCH
bit).
When a pin has already been selected as GPIO, the sense terminal selection is
invalid.
When automatic setting is valid (Addr 0x5F ACE bit = “1”), these bits are
updated after the setting is completed. This value may not be correct during the
automatic setting.
When automatic setting is valid (Addr 0x5F ACE bit = “1”), these bits are
updated after the setting is completed. This value may not be correct during the
automatic setting.
When the touch status is output (SRC1-0 bits = “01”, “10”, “11”), the output is
valid according to GPDT7-0 bits = “1”.
CTn+1[2]
Reserved
GPDT[6]
GPEN[6]
D6
D6
D6
D6
CTn+1[1]
GPDT[5]
GPEN[5]
CCn[5]
- 27 -
D5
D5
D5
D5
CTn+1[0]
GPDT[4]
GPEN[4]
CCn[4]
D4
D4
D4
D4
Description
Description
Description
Description
GPDT[3]
GPEN[3]
Reserved
CCn[3]
D3
D3
D3
D3
GPDT[2]
GPEN[2]
CCn[2]
CTn[2]
D2
D2
D2
D2
GPDT[1]
GPEN[1]
CCn[1]
CTn[1]
D1
D1
D1
D1
CTn
GPDT[0]
GPEN[0]
[AK4160]
CCn[0]
CTn[0]
2011/11
D0
D0
D0
D0