参数资料
型号: MC68HC05E1DWR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 38/86页
文件大小: 491K
代理商: MC68HC05E1DWR2
CPU Core
Interrupts
MC68HC05E1 — Revision 2.0
General Release Specication
MOTOROLA
CPU Core
43
Figure 3-1. Interrupt Processing Flowchart
From
RESET
External
Interrupt
IRQ
Internal
Interrupt
Timer
I Bit
Set
Is
Load PC From:
SWI: $1FFC, $1FFD
IRQ: $1FFA-$1FFB
Timer: $1FF8-$1FF9
CPI: $1FF6, $1FF7
Set
I Bit
Stack
PC, X, A, CC
Clear IRQ
Request
Latch
Restore Resisters
from stack
CC, A, X, PC
Fetch Next
Instruction
Execute
Instruction
Y
N
Internal
Interrupt
CPI
Y
N
Instruction
?
SWI
Y
N
Instruction
?
RTI
Y
N
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