LIS3DSH datasheet(41/53 Pages) STMICROELECTRONICS

Part #	LIS3DSH

Description	MEMS digital output motion sensor ultra low-power high performance three-axis ?쐍ano??accelerometer

PDF	53 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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41 / 53 page

LIS3DSH

Doc ID 022405 Rev 1

41/53

8.28

CTRL_REG1 (21h)

SM1 control register.

8.29

STx_1 (40h-4Fh)

State machine 1 code register STx_1 (x = 1-16).

State machine 1 system register is made up of 16, 8- bit registers to implement 16-step op-

code.

8.30

TIM4_1 (50h)

8-bit general timer (unsigned value) for SM1 operation timing.

8.31

TIM3_1 (51h)

8-bit general timer (unsigned value) for SM1 operation timing.

Table 58.

FIFO_SRC register description

WTM

Watermark status.

0=FIFO filling is lower than WTM level; 1=FIFO filling is equal or higher than WTM

level

OVRN_FIFO

Overrun bit status. 0=FIFO is not completely filled; 1=FIFO is completely filled

EMPTY

FIFO empty bit.

0=FIFO not empty; 1=FIFO empty)

FSS4-FSS0

FIFO stored data level

Table 59.

SM1 control register

HYST2_1

HYST1_1

HYST0_1

SM1_PIN

SM1_EN

Table 60.

SM1 control register structure

HYST2_1

HYST1_1

HYST0_1

Hysteresis unsigned value to be added or subtracted from threshold value in SM1

Default value=000

SM1_PIN

0=SM1 interrupt routed to INT1, 1=SM1 interrupt routed to INT2 pin

Default value=0

SM1_EN

0=SM1 disabled, 1=SM1 enabled

Default value=0

Table 61.

Timer4 default value

000

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