参数资料
型号: MC68HC08AS20CFN
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 37/96页
文件大小: 3243K
代理商: MC68HC08AS20CFN
4
MOTOROLA
4-6
MC68HC05E0
RESETS, INTERRUPTS AND LOW POWER MODES
Figure 4-4 STOP/WAIT Flow Chart
RESET
?
Fetch
Instruction
No
Yes
STOP
Stop Oscillator
and all clocks
Clear I Bit
Turn on oscillator
Wait for
stabilisation
time delay
WAIT
Oscillator active
Processor clock stopped
All other clocks active
Clear I Bit
Turn on oscillator
Wait for
stabilisation
time delay
RESET
?
INTX or
Wake-up
?
Reset
Processor
Load PC
from
$1FFE,
$1FFF
Restart
Internal
Clocks
Restart
Internal
Clocks
Stack
PC/X/A/CC
Load PC
from
$1FFA,
$1FFB
Restart
Internal
Clocks
Load PC
from
$1FF8,
$1FF9
Restart
Internal
Clocks
Load PC
from
$1FF6,
$1FF7
Set
I-bit
Set
I-bit
Set
I-bit
Stack
PC/X/A/CC
Stack
PC/X/A/CC
TIMER A
?
TIMER B
?
SI
?
Restart
Internal
Clocks
Load PC
from
$1FF4,
$1FF5
Set
I-bit
Stack
PC/X/A/CC
INTX, RTI
or Wake-up
?
Load PC
from
$1FFE,
$1FFF
Reset
Processor
Stack
PC/X/A/CC
Set
I-bit
Load PC
from
$1FFA,
$1FFB
Fetch
Instruction
Yes
No
42
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