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Chapter 8 device state transition, Overview, Features – FUJITSU MB91460 SERIES FR60 User Manual

Page 149: Chapter 8, Device state transition

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Chapter 8 Device State Transition

1.Overview

Chapter 8

Device State Transition

1. Overview

MB91460 basically has devices state and flow as shown below.

For more information, see “

3. State Transition Diagram (Page No.134)

”.

2. Features

Device state

• RUN (Normal operation): State where the program is executed.

• SLEEP: State where the program is stopped (peripheral circuits are operating).

• STOP: State where the device is stopped.

• Oscillation-stabilization-wait RUN: State to return from the STOP to the RUN state (waiting until clock

oscillation is stabilized).

• Oscillation-stabilization-wait reset: State for waiting until the clock oscillation is stabilized after INIT.

• Operation-initialization reset (RST): State where the program is initialized.

• Setting-initialization reset (INIT): State where all settings are initialized.

Standby mode (Low-power-consumption mode)

SLEEP and STOP above are standby modes.

Run

Sleep

Stop

Oscillation-stabilization RUN

Oscillation-stabilization

wait reset

Operation-initialization

reset

Setting-initialization reset

INT-pin input

Interrupt request

Software-reset instruction

Interrupt request

Status transition

Power-on

Watchdog reset

INITX