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| HD404629R Datasheet, PDF (43/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit | |||
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STOP/SBY
instruction
HD404629R Series
IF = 1 and
No
IM = 0?
Yes
No
Interrupt
service routine
IE = 0
Yes
Hardware NOP
execution
Standby/watch
mode
*
No
IF = 1 and
IM = 0?
Yes
Hardware NOP
execution
Stop mode
No
STOPC = 0?
Yes
RAME = 1
PC â (PC)+1
PC â (PC)+1
Reset MCU
Instruction
execution
MCU operation
cycle
Note: * Refer to figure 15, Flowchart for Exiting Low Power Modes,
for IF and IM operation.
Figure 22 MCU Operating Sequence (Low-Power Mode Operation)
41
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