BU21170MUV Datasheet, PDF (9/33 Pages) Rohm – Capacitive Switch Controller IC

BU21170MUV
【0x1B : State of interrupt from the peripherals】
Name:
STATE_INT
Address: 0x1B
Description: This register shows the peripheral which issues an interrupt to MPU.
1 : Interrupt is. 0 : Interrupt is not.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x1B
PWM3
PWM2
PWM1
PWM0
WDT
-
AFE
I2C
R/W
R
R
R
R
R
-
R
R
Initial val.
0
0
0
0
0
0
0
0
【0x1C : State of IC】
Name:
STATE
Address: 0x1C
Description: This register indicates the state of IC.
Indicates whether the IC is in calibration or not.
1 : In calibration. 0 : Not in calibration
The required time for calibration.：About 140 msec.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x1C
-
-
-
-
-
-
-
CALIB
R/W
-
-
-
-
-
-
-
R
Initial val.
0
0
0
0
0
0
0
0
【0x1D : Sensor State】
Name:
STATE_SIN
Address: 0x1D
Description: This register indicates the state of each sensor
1 : Switch-on. (Register ‘SIN_DATA’ > Register ‘TH_ON’)
0 : Switch-off. (Register ‘SIN_DATA’ < Register ‘TH_OFF’)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x1D
-
-
-
SIN4
SIN3
SIN2
SIN1
SIN0
R/W
-
-
-
R
R
R
R
R
Initial val.
0
0
0
0
0
0
0
0
【0x1E : Read register for operation check of IC】
Name:
RACT
Address: 0x1E
Description: This register is a read register for operational check of the IC. The value written to the write register for
operation check (Address is 0xFE) is copied to this register. If the write value and the read value are equal,
MPU and I/F are operating normally.
The required time to copy to this register from the write register for operation check : About 20usec.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x1E
RACT[7:0]
R/W
R
R
R
R
R
R
R
R
Initial val.
0
0
0
0
0
0
0
0
【0x85 , 0x8A : Software Reset】
Name:
SOFTRESET
Address: 0x85, 0x8A
Description: These registers are used for hardware reset. If the 0x85 register’s value is 0x55 and the 0x8A is 0xAA,
then a hardware reset will be done.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0x85
SRST[7:0]
0x8A
SRST[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial val.
0
0
0
0
0
0
0
0
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TSZ02201-0L5L0F300830-1-2
14.Jul.2016 Rev.002