BU21010MUV Datasheet, PDF (7/15 Pages) Rohm – Capacitive Sensor Switch Control IC

BU21010MUV
Technical Note
【1*h : Sensor Output Data】
Name:
SENS_DATA
Address:
1* h (one byte per sensor channel)
Description: The sensor output that converts to 10bit. Scaling, offsets and filtering (when enabled) are applied.
The most significant 8 bits are presented to the software with this register.
1*h
R/W
Initial val.
Bit7
SD_*[7]
R
1
Bit6
SD_*[6]
R
0
Bit5
SD_*[5]
R
0
Bit4
SD_*[4]
R
0
Bit3
SD_*[3]
R
0
Bit2
SD_*[2]
R
0
Bit1
SD_*[1]
R
0
Bit0
SD_*[0]
R
0
【32h : Button On/Off 】
Name:
BTN
Address:
32h
Description: This is the state of the sensor when considered as an ON/OFF button. Here 1 : On. 0 :Off.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
32h
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
R/W
R
R
R
R
R
R
R
R
Initial val.
0
0
0
0
0
0
0
0
【35h : Button State Data】
Name:
BTN_STATE
Address:
35h
Description: This provides information about the press.
CH[3:0] : Effective channel ：
This indicates which button is dominant.
SIMUL : Button effective ：
This indicates that the effective channel corresponds to a valid button press according to the thresholds. 1 : On. 0 : Off.
CONTINU : A push and hold is effective ：
Indicates that the button was pressed and held for more than push/hold judgment time. 1 : On. 0 : Off.
Bit7
Bit6
35h
CONTINU
-
R/W
R
-
Initial val.
0
-
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
-
SIMUL
CH[3]
CH[2]
CH[1]
CH[0]
-
R
R
R
R
R
-
0
0
0
0
0
【4* h : Offset Correction Data】
Name:
OFFSET
Address:
4* h (one byte per sensor channel)
Description: This is the offset required to correct the sense data to half scale during the calibration procedure.
4*h
R/W
Initial val.
Bit7
OFS_*[7]
R
1
Bit6
OFS_*[6]
R
0
Bit5
OFS_*[5]
R
0
Bit4
OFS_*[4]
R
0
Bit3
OFS_*[3]
R
0
Bit2
OFS_*[2]
R
0
Bit1
OFS_*[1]
R
0
Bit0
OFS_*[0]
R
0
【60h / 61h : Gesture Duration】
Name:
GES_VEL
Address:
60h, 61h
Description: Indicates the duration of the gesture in number of internal clocks.
The count is a clock set with 0xE4(GES_CLK).
It is possible to count up to 0～4095 clocks.
Gesture duration＝（gesture sampling interval） * VEL [sec]
60h
61h
R/W
Initial val.
Bit7
VEL[7]
-
R
0
Bit6
VEL[6]
-
R
0
Bit5
VEL[5]
-
R
0
Bit4
VEL[4]
-
R
0
Bit3
VEL[3]
VEL[11]
R
0
Bit2
VEL[2]
VEL[10]
R
0
Bit1
VEL[1]
VEL[9]
R
0
Bit0
VEL[0]
VEL[8]
R
0
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
7/14
2009.04 - Rev.B