MC68HC908LD64 Datasheet, PDF (335/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

Data Sheet — MC68HC908LD64
Section 23. Break Module (BRK)
23.1 Contents
23.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
23.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
23.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
23.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . . 338
23.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .338
23.4.3 TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . 338
23.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 338
23.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
23.5.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .338
23.5.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339
23.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
23.6.1 Break Status and Control Register. . . . . . . . . . . . . . . . . . . 339
23.6.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 340
23.6.3 SIM Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . 340
23.6.4 SIM Break Flag Control Register . . . . . . . . . . . . . . . . . . . . 342
23.2 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.
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
Break Module (BRK)
Data Sheet
335