MC68HC908JG16 Datasheet, PDF (301/324 Pages) Motorola, Inc – Microcontrollers

Technical Data — MC68HC908JG16
Section 19. Break Module (BRK)
19.1 Contents
19.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
19.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
19.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .302
19.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . . 304
19.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .304
19.4.3 TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . 304
19.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 304
19.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
19.5.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304
19.5.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305
19.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
19.6.1 Break Status and Control Register. . . . . . . . . . . . . . . . . . . 305
19.6.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 306
19.6.3 SIM Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . 306
19.6.4 SIM Break Flag Control Register . . . . . . . . . . . . . . . . . . . . 308
19.2 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.
MC68HC908JG16 — Rev. 1.1
Freescale Semiconductor
Break Module (BRK)
Technical Data
301