MC68HC908GP32 Datasheet, PDF (99/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
Technical Data – MC68HC908GP32•MC68HC08GP32
Section 6. Break Module (BRK)
6.1 Contents
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
6.2 Introduction
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.
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Break Module (BRK)
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Technical Data
97