MC68HC705C8A_13 Datasheet, PDF (49/222 Pages) Freescale Semiconductor, Inc – Technical Data

Freescale Semiconductor, Inc.
Technical Data — MC68HC705C8A
Section 4. Interrupts
4.1 Contents
4.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3 Interrupt Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3.1 Software Interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.3.2 External Interrupt (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.3.3 Port B Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
4.3.4 Capture/Compare Timer Interrupts . . . . . . . . . . . . . . . . . . .55
4.3.5 SCI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.3.6 SPI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.4 Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
4.2 Introduction
This section describes how interrupts temporarily change the normal
processing sequence.
MC68HC705C8A — Rev. 3
MOTOROLA
Interrupts
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Technical Data