MC68HC908JK1 Datasheet, PDF (183/210 Pages) Motorola, Inc – MC68HC908JK1

Technical Data — MC68H(R)C908JL3
Section 17. Break Module (BREAK)
17.1 Contents
17.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
17.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
17.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
17.4.1 Flag Protection During Break Interrupts . . . . . . . . . . . . . . . 186
17.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 186
17.4.3 TIM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . 186
17.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . 186
17.5 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
17.5.1 Break Status and Control Register (BRKSCR) . . . . . . . . . 187
17.5.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 188
17.5.3 Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
17.5.4 Break Flag Control Register (BFCR) . . . . . . . . . . . . . . . . . 190
17.6 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
17.6.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
17.6.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
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.
MC68H(R)C908JL3 — Rev. 1.0
MOTOROLA
Break Module (BREAK)
Technical Data
183