參數(shù)資料
型號: MC68HC11A8VCFU2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Single-Chip Microcontroller
中文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP64
封裝: QFP-64
文件頁數(shù): 93/158頁
文件大小: 776K
代理商: MC68HC11A8VCFU2
MC68HC11A8
TECHNICAL DATA
RESETS, INTERRUPTS, AND LOW POWER MODES
MOTOROLA
9-13
9
Figure 9-4 Processing Flow Out of Resets (Sheet 2 of 2)
BIT I IN
CCR = 1
2A
Y
N
ANY I-BIT
INTERRUPT
PENDING
Y
N
FETCH OPCODE
ILLEGAL
OPCODE
Y
N
WAI
Y
N
INSTRUCTION
SWI
INSTRUCTION
Y
N
RTI
INSTRUCTION
Y
N
EXECUTE THIS
INSTRUCTION
STACK CPU
REGISTERS
ANY
N
Y
INTERRUPT
PENDING
SET BIT
I
IN CCR
RESOLVE INTERRUPT
PRIORITY AND FETCH
VECTOR FOR HIGHEST
PENDING SOURCE
SEE FIGURE 9–5
STACK CPU
REGISTERS
SET BIT
I
IN CCR
FETCH VECTOR
$FFF8, $FFF9
STACK CPU
REGISTERS
SET BIT
I
IN CCR
FETCH VECTOR
$FFF6, $FFF7
RESTORE CPU
REGISTERS
FROM STACK
1A
STACK CPU
REGISTERS
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