BU21010MUV Datasheet, PDF (8/15 Pages) Rohm – Capacitive Sensor Switch Control IC

BU21010MUV
Technical Note
【62h : Gesture Direction Judgment】
Name:
GES_DIR
Address:
62h
Description: Gesture direction judgment
DIR_A : gesture direction A
0xE3(GES_CTL) reference
DIR_B : gesture direction B
0xE3(GES_CTL) reference
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
62h
-
-
-
-
-
-
DIR_B
DIR_A
R/W
-
-
-
-
-
-
R
R
Initial val.
-
-
-
-
-
-
0
0
【E2h : Gesture Clear】
Name:
GES_CLR
Address:
E2h
Description: This register when written to clears GES_VEL and GES_DIR.
It is cleared by one, and it returns to 0 by the automatic operation.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
E2h
CLR
-
-
-
-
-
-
-
R/W
W
-
-
-
-
-
-
-
Initial val.
0
-
-
-
-
-
-
-
【E3h : Gesture Function Setting】
Name:
GES_CTL
Address:
E3h
Description: This register controls what key-press sequence is recognized as a gesture.
Only 4 channels may be used - SIN0, SIN2, SIN4, and SIN6.
EN : enable
These are the enable bits. One is provided for each of the 4 sense inputs used for gesture. EN[0] is for SN0, EN[1] is for
SN2, EN[2] is for SN4 and EN[3] is for SN6. 1 is to enable and 0 is for disable.
MODE : mode
0 : Requires all sensors to be present in the sequence before the gesture is recognized.（All detection mode）
1 : Allows one or more of the keys to be missed in the sequence.（Verbose mode）
The condition and the direction of detection that can be detected in each mode are as follows.
mode
All detection
Verbose
MODE
0
1
Direction（GES_DIR）
DIR_A
DIR_B
DIR_A
DIR_B
Detected
1)SIN0→SIN2→SIN4→SIN6
1)SIN6→SIN4→SIN2→SIN0
1)SIN0→SIN2→SIN4
2)SIN0→SIN2→
SIN6
3)
SIN2→SIN4→SIN6
4)SIN0→
SIN4
5)
SIN2→
SIN6
1)SIN6→SIN4→SIN2
2)SIN6→SIN4→
SIN0
3)
SIN4→SIN2→SIN0
4)SIN6→
SIN2
5)
SIN4→
SIN0
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
E3h
-
-
-
MODE
EN[3]
EN[2]
EN[1]
EN[0]
R/W
-
-
-
W
W
W
W
W
Initial val.
-
-
-
1
1
1
1
1
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8/14
2009.04 - Rev.B