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參數(shù)資料
| 型號： | MC68HC05P9ACDW |
| 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, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 26/90頁 |
| 文件大?。?/td> | 285K |
| 代理商： | MC68HC05P9ACDW |
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GENERAL RELEASE SPECIFICATION
MOTOROLA
INTERRUPTS
MC68HC05P9A
4-6
Rev. 2.0
4.4
Optional External Interrupts (PA0-PA7)
The IRQ interrupt can be triggered by the inputs on the PA0 thru PA7 port pins if
enabled by individual mask options. With pullup enabled, each port A pin can
activate the IRQ interrupt function and the interrupt operation will be the same as
for inputs to the IRQ pin. Once enabled by mask option, each individual port A pin
can be disabled as an interrupt source if its corresponding DDR bit is congured
for output mode.
NOTE
The BIH and BIL instructions apply to the output of the logic OR
function of the enabled PA0 thru PA7 interrupt pins and the IRQ pin.
The BIH and BIL instructions do not exclusively test the state of the
IRQ pin.
NOTE
If enabled, the PA0 thru PA7 pins will cause an IRQ interrupt only if
these individual pins are congured as inputs.
4.5
Software Interrupt (SWI)
The SWI is an executable instruction and a non-maskable interrupt. It is executed
regardless of the state of the I bit in the CCR. If the I bit is zero (interrupts
enabled), SWI executes after interrupts which were pending when the SWI was
fetched but before interrupts generated after the SWI was fetched. The interrupt
service routine address is specied by the contents of memory locations $1FFC
and $1FFD.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05P9ACP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05P9ADW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05P9AMDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05P9AMP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05P9AP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
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