參數(shù)資料
型號: MC68HSC05C8FB
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數(shù): 90/156頁
文件大小: 1755K
代理商: MC68HSC05C8FB
MC68HC05C8A — Rev. 4.0
Advance Information
MOTOROLA
Interrupts
39
Advance Information — MC68HC05C8A
Section 4. Interrupts
4.1 Contents
4.2 Introduction
The microcontroller unit (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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MC68HC05C8MFB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
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