參數(shù)資料
型號: 68HC05M68HC
廠商: Motorola, Inc.
英文描述: HCMOS Microcontroller Unit
中文描述: HCMOS微控制器
文件頁數(shù): 47/130頁
文件大?。?/td> 1541K
代理商: 68HC05M68HC
Interrupts
Interrupt Types
MC68HC705P6A
Rev. 2.0
Advance Information
MOTOROLA
Interrupts
47
Figure 5-1. Interrupt Processing Flowchart
5.3 Interrupt Types
The interrupts fall into three categories: reset, software, and hardware.
IS I BIT
SET
FROM RESET
LOAD PC FROM:
SWI: $1FFC, $1FFD
IRQ: $1FFA-$1FFB
TIMER: $1FF8-$1FF9
SET
I BIT IN CCR
STACK
PC, X, A, CC
CLEAR IRQ
REQUEST
LATCH
RESTORE RESISTERS
FROM STACK
CC, A, X, PC
Y
N
EXECUTE INSTRUCTION
FETCH NEXT
INSTRUCTION
IRQ
INTERRUPT
Y
N
TIMER
INTERRUPT
Y
N
SWI
INSTRUCTION
Y
N
RTI
INSTRUCTION
Y
N
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