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參數(shù)資料
| 型號(hào)： | MC68HC05J5ADW |
| 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, PDSO20 |
| 封裝： | SOIC-20 |
| 文件頁(yè)數(shù)： | 36/113頁(yè) |
| 文件大?。?/td> | 1212K |
| 代理商： | MC68HC05J5ADW |
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July 16, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05J5A
INTERRUPTS
MOTOROLA
REV 2.1
4-3
4.3
SOFTWARE INTERRUPT (SWI)
The SWI is an executable instruction and a non-maskable interrupt since it is exe-
cuted regardless of the state of the I-bit in the CCR. As with any instruction, inter-
rupts pending during the previous instruction will be serviced before the SWI
opcode is fetched. The interrupt service routine address is specied by the con-
tents of memory locations $0FFC and $0FFD.
4.4
HARDWARE INTERRUPTS
All hardware interrupts except RESET are maskable by the I-bit in the CCR. If the
I-bit is set, all hardware interrupts (internal and external) are disabled. Clearing
the I-bit enables the hardware interrupts. There are two types of hardware inter-
rupts which are explained in the following sections.
4.5
EXTERNAL INTERRUPT (IRQ)
The IRQ pin provides an asynchronous interrupt to the CPU. A block diagram of
the IRQ function is shown in Figure 4-2.
Figure 4-2. IRQ Function Block Diagram
IRQ
LATCH
R
VDD
IRQ Pin
IRQE
Mask Option
(IRQ Level)
IRQF
to IRQ
processing
in CPU
IRQR
to BIH & BIL
instruction
sensing
RST
Mask Option
(Port A External Int.)
PA0
PA1
PA2
PA3
IRQ Fetch Vector
IRQE1
IRQ1
LATCH
R
VDD
IRQR1
RST
IRQF1
IRQE1
PA7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05J5AJP | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP16 |
| MC68HC05J5AP | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20 |
| MICD-038-03.75-TTR-TTL-1-S | INTERCONNECTION DEVICE |
| MICD-038-03.75-TTR-TTL-3-B | INTERCONNECTION DEVICE |
| MICD-038-03.75-TTR-TTR-1-S | INTERCONNECTION DEVICE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05J5AJDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-bit microcontroller units |
| MC68HC05J5AJP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-bit microcontroller units |
| MC68HC05J5AP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-bit microcontroller units |
| MC68HC05JJ6 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
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