參數(shù)資料
型號: MC68HC11D3CFN3
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 89/138頁
文件大?。?/td> 1047K
代理商: MC68HC11D3CFN3
Resets, Interrupts, and Low-Power Modes
MC68HC711D3 Data Sheet, Rev. 2.1
54
Freescale Semiconductor
Figure 4-4. Processing Flow Out of Reset (Sheet 2 of 2)
I BIT IN
CCR SET?
2A
Y
N
ANY I-BIT
INTERRUPT
Y
N
PENDING?
FETCH OPCODE
ILLEGAL
OPCODE?
N
Y
WAI
Y
N
INSTRUCTION?
SWI
INSTRUCTION?
Y
N
RTI
INSTRUCTION?
Y
N
EXECUTE THIS
INSTRUCTION
STACK CPU
REGISTERS
N
Y
INTERRUPT
YET?
SET I BIT
STACK CPU
REGISTERS
SET I BIT
FETCH VECTOR
$FFF8, $FFF9
STACK CPU
REGISTERS
FETCH VECTOR
$FFF6, $FFF7
RESTORE CPU
REGISTERS
FROM STACK
1A
STACK CPU
REGISTERS
RESOLVE INTERRUPT
PRIORITY AND FETCH
VECTOR FOR HIGHEST
PENDING SOURCE
SET I BIT
START NEXT
INSTRUCTION
SEQUENCE
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