參數(shù)資料
型號: MC68HC11F1CPU4R2
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, LQFP-80
文件頁數(shù): 137/163頁
文件大?。?/td> 711K
代理商: MC68HC11F1CPU4R2
MC68HC11F1
RESETS AND INTERRUPTS
MOTOROLA
TECHNICAL DATA
5-13
Figure 5-2 Processing Flow Out of Reset (2 of 2)
ANY I BIT
INTERRUPT
PENDING
?
STACK CPU
REGISTERS
SET X AND I BITS
FETCH VECTOR
$FFE6, FFE7
YES
1A
1B
YES
NO
STACK CPU
REGISTERS
SET X AND I BITS
FETCH VECTOR
$FFE8, FFE9
FETCH OPCODE
STACK CPU
REGISTERS
STACK CPU
REGISTERS
SET I BIT
EXECUTE THIS
INSTRUCTION
RESTORE CPU
REGISTERS
FROM STACK
RESOLVE INTERRUPT
PRIORITY AND FETCH
VECTOR FOR HIGHEST
PENDING SOURCE
(REFER TO FIGURE 5-2)
START NEXT
INSTRUCTION
SEQUENCE
YES
NO
I BIT IN
CCR SET
?
NO
ILLEGAL
OPCODE
?
NO
WAI
?
NO
SWI
?
NO
RTI
?
NO
INTERRUPT
YET
?
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