MC68HC908GT16 Datasheet, PDF (101/412 Pages) Motorola, Inc – Microcontrollers

Technical Data — MC68HC908GT16 • MC68HC908GT8
Section 6. Break Module (BRK)
6.1 Contents
6.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
6.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . . 104
6.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .104
6.4.3 TIM1 and TIM2 During Break Interrupts. . . . . . . . . . . . . . . 104
6.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .104
6.5 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
6.5.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
6.5.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
6.6 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
6.6.1 Break Status and Control Register . . . . . . . . . . . . . . . . . . .105
6.6.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 106
6.6.3 Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
6.6.4 Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . . . 108
6.2 Introduction
This section describes the break module (BRK). The break module can
generate a break interrupt that stops normal program flow at a defined
address to enter a background program.
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
MOTOROLA
Break Module (BRK)
Technical Data
101