MC68HC908KX8 Datasheet, PDF (269/310 Pages) Motorola, Inc – Microcontrollers

Technical Data — MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8
Section 19. Break (BRK) Module
19.1 Contents
19.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
19.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
19.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
19.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . . 272
19.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .272
19.4.3 TIM1 and TIM2 During Break Interrupts. . . . . . . . . . . . . . . 272
19.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .272
19.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
19.5.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
19.5.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273
19.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
19.6.1 Break Status and Control Register . . . . . . . . . . . . . . . . . . .273
19.6.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 274
19.6.3 Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
19.6.4 Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . . . 276
19.6.5 Break Auxiliary Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
19.2 Introduction
This section describes the break (BRK) module. The break module can
generate a break interrupt that stops normal program flow at a defined
address to enter a background program.
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
MOTOROLA
Break (BRK) Module
Technical Data
269