Datasheet

MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
MOTOROLA Break Module (BREAK) 201
NON-DISCLOSURE AGREEMENT REQUIRED
Data Sheet — MC68HC908QY4
Section 17. Break Module (BREAK)
17.1 Contents
17.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201
17.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202
17.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202
17.4.1 Flag Protection During Break Interrupts. . . . . . . . . . . . . . .204
17.4.2 CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .204
17.4.3 TIM During Break Interrupts. . . . . . . . . . . . . . . . . . . . . . . .204
17.4.4 COP During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . .204
17.5 Break Module Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
17.5.1 Break Status and Control Register. . . . . . . . . . . . . . . . . . .205
17.5.2 Break Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . .206
17.5.3 Break Auxiliary Register. . . . . . . . . . . . . . . . . . . . . . . . . . .207
17.5.4 Break Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
17.5.5 Break Flag Control Register . . . . . . . . . . . . . . . . . . . . . . .209
17.6 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
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.