MC68HC908JB8 Datasheet, PDF (245/286 Pages) Motorola, Inc – MICROCONTROLLERS

Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
Section 17. Break Module (BREAK)
17.1 Contents
17.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
17.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
17.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246
17.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . . 248
17.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .248
17.4.3 TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . 248
17.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 248
17.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
17.5.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248
17.5.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .249
17.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
17.6.1 Break Status and Control Register. . . . . . . . . . . . . . . . . . . 249
17.6.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 250
17.6.3 Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
17.6.4 Break Flag Control Register (BFCR) . . . . . . . . . . . . . . . . . 252
17.2 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.
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
Break Module (BREAK)
Technical Data
245