LIS3DSH 查看數據表（PDF） - STMicroelectronics

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LIS3DSH

MEMS digital output motion sensor ultra low-power high performance three-axis “nano” accelerometer

STMicroelectronics 

LIS3DSH

Register description

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

8.28

CTRL_REG1 (21h)

SM1 control register.

Table 59. SM1 control register

HYST2_1 HYST1_1 HYST0_1

-

SM1_PIN

-

-

SM1_EN

Table 60.

HYST2_1

HYST1_1

HYST0_1

SM1_PIN

SM1_EN

SM1 control register structure

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

Default value=000

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

Default value=0

0=SM1 disabled, 1=SM1 enabled

Default value=0

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.

Table 61. Timer4 default value

0

0

0

0

0

0

0

0

8.31

TIM3_1 (51h)

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

Doc ID 022405 Rev 1

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