68HC08KH12 Datasheet, PDF (241/262 Pages) Motorola, Inc – 8 BIT MICROCONTROLLER UNITS

Advance Information — MC68HC(7)08KH12
Section 16. Break Module (BREAK)
16.1 Contents
16.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
16.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
16.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
16.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . 244
16.4.2 CPU During Break Interrupts. . . . . . . . . . . . . . . . . . . . . . . 244
16.4.3 TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 244
16.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . 244
16.5 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
16.5.1 Break Status and Control Register (BRKSCR) . . . . . . . . . 245
16.5.2 Break Address Registers (BRKH and BRKL) . . . . . . . . . . 245
16.6 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
16.6.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
16.6.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
16.2 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.
MC68HC(7)08KH12 — Rev. 1.0
MOTOROLA
Break Module (BREAK)
Advance Information
241