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| MC68HC05K0 Datasheet, PDF (43/154 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit | |||
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Freescale Semiconductor, Inc.
Technical Data â MC68HC05K0 ⢠MC68HC05K1
Section 4. Interrupts
4.1 Contents
4.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4.3 Interrupt Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.3.1 Software Interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.3.2 External Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
4.3.2.1
4.3.2.2
IRQ/VPP Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
PA3âPA0 Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
4.3.2.3 IRQ Status and Control Register . . . . . . . . . . . . . . . . . . .48
4.3.3 Timer Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
4.3.3.1 Timer Overflow Interrupt . . . . . . . . . . . . . . . . . . . . . . . . .49
4.3.3.2 Real-Time Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
4.4 Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
4.2 Introduction
This section describes how interrupts temporarily change the processing
sequence.
MC68HC05K0 ⢠MC68HC05K1 â Rev. 2.0
Interrupts
For More Information On This Product,
Go to: www.freescale.com
Technical Data
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