Introduction; Section 6. Break Module (Brk) - Motorola MC68HC908GP32 Technical Data Manual

Technical Data - MC68HC908GP32•MC68HC08GP32
6.1 Contents

6.2 Introduction

MC68HC908GP32 MC68HC08GP32
•
MOTOROLA
Freescale Semiconductor, Inc.

Section 6. Break Module (BRK)

6.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
6.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
6.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
6.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . .100
6.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 100
6.4.3 TIM1 and TIM2 During Break Interrupts. . . . . . . . . . . . . . .100
6.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 100
6.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
6.5.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
6.5.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
6.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
6.6.1 Break Status and Control Register. . . . . . . . . . . . . . . . . . . 101
6.6.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . .102
6.6.3 Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
6.6.4 Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . . . 104
This section describes the break module. The break module can
generate a break interrupt that stops normal program flow at a defined
address to enter a background program.
Rev. 6
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Break Module (BRK)
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Technical Data
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