MC68HC08XL36 Datasheet, PDF (141/362 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Break Module (BRK)
BRK
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Flag Protection During Break Interrupts . . . . . . . . . . . . . . . . . . . .144
CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
DMA During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Low-Power Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Stop Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Break Status and Control Register . . . . . . . . . . . . . . . . . . . . . . . .146
Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
Introduction
The break module can generate a break interrupt that stops normal
program flow at a defined address to enter a background program.
1-brk_a
MOTOROLA
Break Module (BRK)
For More Information On This Product,
Go to: www.freescale.com
MC68HC08XL36
141