參數(shù)資料
型號: MC68HC05X4CDWR2
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.2 MHz, MICROCONTROLLER, PDSO28
封裝: PLASTIC, SOIC-28
文件頁數(shù): 120/168頁
文件大小: 656K
代理商: MC68HC05X4CDWR2
Resets, Interrupts and Low Power Modes
Low power modes
MC68HC05X4 Rev 1.0
MOTOROLA
Resets, Interrupts and Low Power Modes
55
9-resets
Figure 2. Reset flow chart
Load PC from:
SWI:
$1FFC-$1FFD
CIRQ:
$1FFA-$1FFB
Core timer:$1FF8-$1FF9
WOI:
$1FF6-$1FF7
16-bit timer:$1FF4-$1FF5
Reset
Is I-bit set?
Fetch next
instruction
Execute
instruction
Clear relevant IRQ
request latch
Stack
PC, X, A, CC
Restore registers
from stack:
CC, A, X, PC
No
Yes
No
Yes
No
Yes
CIRQ
interrupt?
Core timer?
WOI
interrupt?
No
16-bit timer?
SWI
instruction?
RTI
instruction?
Yes
No
Set I-bit
Yes
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