BU21008MUV

Technical Note

8/16

www.rohm.com

2009.04 - Rev.B

© 2009 ROHM Co., Ltd. All rights reserved.

【

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.

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

1*h

SD_*[7]

SD_*[6]

SD_*[5]

SD_*[4]

SD_*[3]

SD_*[2]

SD_*[1]

SD_*[0]

R/W

R

R

R

R

R

R

R

R

Initial val.

1

0

0

0

0

0

0

0

【

32h / 33h : Button On/Off】

Name:

BTN

Address:

32h, 33h

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

33h

CH15

CH14

CH13

CH12

CH11

CH10

CH9

CH8

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

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

35h

CONTINU

-

-

SIMUL

CH[3]

CH[2]

CH[1]

CH[0]

R/W

R

-

-

R

R

R

R

R

Initial val.

0

-

-

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.

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

4*h

OFS_*[7]

OFS_*[6]

OFS_*[5]

OFS_*[4]

OFS_*[3]

OFS_*[2]

OFS_*[1]

OFS_*[0]

R/W

R

R

R

R

R

R

R

R

Initial val.

1

0

0

0

0

0

0

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]

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

60h

VEL[7]

VEL[6]

VEL[5]

VEL[4]

VEL[3]

VEL[2]

VEL[1]

VEL[0]

61h

-

-

-

-

VEL[11]

VEL[10]

VEL[9]

VEL[8]

R/W

R

R

R

R

R

R

R

R

Initial val.

0

0

0

0

0

0

0

0