MC68HC908AZ60 Datasheet, PDF (163/480 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Break Module
Break Module
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Flag Protection During Break Interrupts . . . . . . . . . . . . . . . . . . . . 163
CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Stop Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Break Status and Control Register . . . . . . . . . . . . . . . . . . . . . . . . 165
Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Introduction
The break module can generate a break interrupt that stops normal
program flow at a defined address to enter a background program.
Features
• Accessible I/O Registers during Break Interrupts
• CPU-Generated Break Interrupts
• Software-Generated Break Interrupts
• COP Disabling during Break Interrupts
1-brk
MOTOROLA
Break Module
MC68HC908AZ60 — Rev 2.0
161