參數(shù)資料
型號: MC68HC05L25PB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP52
封裝: TQFP-52
文件頁數(shù): 91/152頁
文件大?。?/td> 897K
代理商: MC68HC05L25PB
External Interrupt (IRQ)
MC68HC05L25 Data Sheet, Rev. 3.1
Freescale Semiconductor
43
Figure 6-1. Interrupt Processing Flowchart
FROM RESET
IS
I BIT
SET?
LOAD PC FROM:
SWI: $1FFC:$1FFD
IRQ: $1FFA:$1FFB
KWI: $1FF8:$1FF9
EVI: $1FF4:$1FF5
SPII: $1FF2:$1FF3
TBI: $1FF0:$1FF1
SET I BIT IN CCR.
STACK PC, X, A, CC.
RESTORE REGISTERS
FROM STACK
CC, A, X, PC.
Y
N
IRQ
INTERRUPT?
Y
N
TIME BASE
INTERRUPT?
Y
N
EXECUTE
INSTRUCTION.
FETCH NEXT
INSTRUCTION.
RTI
INSTRUCTION
?
Y
N
SWI
INSTRUCTION
?
Y
N
SPI
INTERRUPT?
Y
N
PC = PC+1
IRQ
INTERRUPT?
Y
N
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