SCA3000-D01 datasheet(20/43 Pages) VTI

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SCA3000 Series

VTI Technologies Oy

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www.vti.fi

Doc.Nr. 8257300A.07

Rev.A.07

Address: 14h

Bits

Mode

Initial

Value

Name

Description

BUF_EN

Output ring buffer

1 – Enabled

0 – Disabled (Buffer in power down)

BUF_8BIT

Output ring buffer data length

1 – Ring buffer is read in single 8 bit frame per

stored axis (8 bit mode)

0 – Ring buffer is read in two 8 bit frames per

stored axis (11 bit mode). Unused bits are

set to 0.

Reserved

FFD_EN

Free-fall detection

1 – Enabled

0 – Disabled (detection in power down)

Reserved

2:0

000

MODE_BITS

Selects SCA3000 series operation mode

000 – Normal measurement mode

010 – Optional measurement mode 1 (see Table 2)

001 – Optional measurement mode 2 (see Table 2)

011 – MD, Motion Detector

Other combinations are reserved

Address: 17h

2C read operation

Bits

Mode

Initial

Value

Name

Description

7:0

00h

ADDR

Address of register to be read via I

2C. Register is

used only for I

2C read access.

Address: 18h

Bits

Mode

Initial

Value

Name

Description

7:5

000

Reserved

4:0

00000

SELECT

Indirect control registers,

select register address for read / write access:

00001 – I2C_DISABLE

00010 – MD_CTRL (Motion Detector control)

00011 – MD_Y_TH (Motion Detector Y-

threshold)

00100 – MD_X_TH (Motion Detector X-

threshold)

00101 – MD_Z_TH (Motion Detector Z-

threshold)

01011 – OUT_CTRL (Output control)

Other combinations are reserved

CTRL_SEL register works as an address pointer for registers listed below. When this register is

written the content of selected register is available for reading/writing from/to register CTRL_DATA.

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