Microcontrollers Data Sheet

MC68HC(7)08KH12 — Rev. 1.1 Advance Information
Freescale Semiconductor
241
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.