HD6433713 datasheet(56/324 Pages) RENESAS

Part #	HD6433713

Description	single-chip microcontrollers

PDF	324 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

56 / 324 page

2.6 CPU States

2.6.1 Overview

There are three CPU states: program execution state, program halt state, and exception-handling

state. Program execution state includes active mode and subactive mode. In program halt state

there are sleep mode, standby mode, and watch mode. These states are shown in figure 2-12.

Figure 2-13 shows the state transitions.

Figure 2-12 CPU Operation States

State

Program

execution state

Active mode

Subactive mode

The CPU executes successive program

instructions, synchronized by the system clock.

The CPU executes

successive program

instructions at reduced

speed, synchronized

by the subclock.

Program halt state

A state in which CPU

operations are

stopped to conserve

power.

Exception-

handling state

A transient state in which the CPU changes

the processing flow due to a reset or an interrupt.

Sleep mode

Standby mode

Watch mode

Low-power

operation

modes

HD6433713 Datasheet(PDF) 56 Page - Renesas Technology Corp