LIS3DSH 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

比赛名单

LIS3DSH

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

STMicroelectronics 

Digital main blocks

5

Digital main blocks

LIS3DSH

5.1

State machine

The LIS3DSH embeds two state machines able to run a user defined program.

The program is made up of a set of instructions that define the transition to successive

states. Conditional branches are possible.

From each state (n) it is possible to have transition to the next state (n+1) or to reset state.

Transition to reset point happens when “RESET condition” is true; Transition to the next step

happens when “NEXT condition” is true.

Interrupt is triggered when output/stop/continue state is reached.

Each state machine allows to implement gesture recognition in a flexible way, free-fall,

wake-up, 4D/6D orientation, pulse counter and step recognition, click/double click,

shake/double shake, face-up/face-down, turn/double turn:

● Code and parameters are loaded by the host into dedicated memory areas for the state

program

● State program with timing based on ODR or decimated time

● Possibility of conditional branches

Table 8. LIS3DSH state machines: sequence of state to execute an algorithm

START

State 1

next

State 2

next

State 3

reset

reset

reset

next

reset

State n

OUTPUT/STOP/CONTINUE

INT set

AM10212V1

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Doc ID 022405 Rev 1

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