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| HD4074344 Datasheet, PDF (38/100 Pages) Hitachi Semiconductor – 4-bit microcomputers | |||
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HD404344R Series/HD404394 Series
Low-power mode
operation cycle
IF = 1 and
No
IM = 0?
Yes
Standby mode
(SBY)
Stop mode
Hardware NOP
execution
*
No
IF = 1 and
IM = 0?
Yes
Hardware NOP
execution
No
STOPC = 0?
Yes
RAME = 1
PC â Next
Iocation
PC â Next
Iocation
Instruction
execution
Reset MCU
MCU operation
cycle
Note: * For IF and IM operation, refer to figure 13.
Figure 16 MCU Operation Sequence (Low Power Mode Operation)
38
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