參數(shù)資料
型號： MC68HC05P4A
廠商： Motorola, Inc.
英文描述： 28-pin MCU (microcontroller unit) based on the MC68HC05P4(28引腳、基于MC68HC05P4升級的8位微控制器單元)
中文描述： 28引腳單片機(jī)（微控制器）的基礎(chǔ)上MC68HC05P4（28引腳，基于MC68HC05P4升級的8位微控制器單元）
文件頁數(shù)： 35/102頁
文件大?。?/td> 930K
代理商： MC68HC05P4A
MC68HC05P4A — Rev. 6.0
Advance Information
MOTOROLA
Interrupts
35
Advance Information — MC68HC05P4A
Section 4. Interrupts
4.1 Contents
4.2
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
4.3
Hardware Controlled Interrupt Sequence. . . . . . . . . . . . . . . . .36
4.4
Timer Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
4.5
External Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
4.6
Optional External Interrupts (PA0–PA7). . . . . . . . . . . . . . . . . .40
4.7
Software Interrupt (SWI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
4.2 Introduction
The MCU can be interrupted four different ways:
Two maskable hardware interrupts, IRQ and timer
Non-maskable software interrupt instruction (SWI)
Optional external asynchronous interrupt on each port A pin
(enabled by pullup mask option)
Interrupts cause the processor to save register contents on the stack
and to set the interrupt mask (I bit) to prevent additional interrupts. The
return to interrupt (RTI) instruction causes the register contents to be
recovered from the stack and normal processing to resume.
Unlike RESET, hardware interrupts do not cause the current instruction
execution to be halted, but are considered pending until the current
instruction is complete.
NOTE:
The current instruction is the one already fetched and being operated on.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05P4DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P4P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P6 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P6_1 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P8 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
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