Справочник Пользователя для Motorola MC68HC908MR16

Motorola

MC68HC908MR16/MC68HC908MR32 — Rev. 4.0

Advance Information

MOTOROLA

Break Module (BRK)

359

Advance Information — MC68HC908MR16/MC68HC908MR32

Section 21. Break Module (BRK)

21.1 Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Flag Protection During Break Interrupts . . . . . . . . . . . . . . .362

CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 362

TIM1 and TIM2 During Break Interrupts . . . . . . . . . . . . . . .362

COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 362

Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362

Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363

Break Status and Control Register. . . . . . . . . . . . . . . . . . . 363

Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . .364

Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . . . 366

21.2 Introduction

This section describes the break module (BRK). The break module can
generate a break interrupt that stops normal program flow at a defined
address to enter a background program.