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    參數(shù)資料
    型號: MC68HCL05C12AFB
    廠商: MOTOROLA INC
    元件分類: 微控制器/微處理器
    英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
    封裝: QFP-44
    文件頁數(shù): 86/156頁
    文件大小: 756K
    代理商: MC68HCL05C12AFB
    MC68HC05C12A Rev. 3.0
    General Release Specification
    MOTOROLA
    Interrupts
    35
    NON-DISCLOSURE
    AGREEMENT
    REQUIRED
    General Release Specification — MC68HC05C12A
    Section 4. Interrupts
    4.1 Contents
    4.2 Introduction
    The MCU can be interrupted five different ways:
    Four maskable hardware interrupts, IRQ (interrupt request), SPI
    (serial peripheral interface), SCI (serial communications
    interface), and timer
    Non-maskable software interrupt instruction (SWI)
    Port B interrupts, if enabled, are combined with the IRQ to form a single
    interrupt source.
    Interrupts cause the processor to save register contents on the stack
    and to set the interrupt mask (I bit) to prevent additional interrupts. The
    RTI (return to interrupt) instruction causes the register contents to be
    recovered from the stack and normal processing to resume.
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