LSM6DSO32X datasheet(5/162 Pages) STMICROELECTRONICS

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Definition of Finite State Machine

A state machine is a mathematical abstraction used to design logic connections. It is a behavioral model

composed of a finite number of states and transitions between states, similar to a flow chart in which one can

inspect the way logic runs when certain conditions are met. The state machine begins with a start state, goes to

different states through transitions dependent on the inputs, and can finally end in a specific state (called stop

state). The current state is determined by the past states of the system. Figure 1. Generic state machine shows a

generic state machine.

Figure 1. Generic state machine

Finite State Machine in the LSM6DSO32X

The LSM6DSO32X works as a combo accelerometer-gyroscope sensor, generating acceleration and angular

rate output data. It is also possible to connect an external sensor (magnetometer) by using the Sensor Hub

feature (Mode 2). These data can be used as input of up to 16 programs in the embedded Finite State Machine

(Figure 2. State machine in the LSM6DSO32X).

All 16 finite state machines are independent: each one has its dedicated memory area and it is independently

executed. An interrupt is generated when the end state is reached or when some specific command is performed.

Figure 2. State machine in the LSM6DSO32X

LSM6DSO32X

Finite State Machine

DS13607 - Rev 1

page 5/162

LSM6DSO32X Datasheet(PDF) 5 Page - STMicroelectronics