E202075_HD404889 Datasheet, PDF (61/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
STOP/SBY
instruction
IF=1
No
IM=0
Yes
No
Interrupt handling
routine
IE=0
Yes
Hardware NOP
Execution
PC ←(PC)+1
Standby/watch mode
IF=1
No
IM=0
Yes
Clearing Standby
watch mode
Hardware NOP
Execution
PC ←(PC)+1
Stop Mode
WU0~WU3
No
=
Yes
Clearing Stop
mode
NOP
PC ←(PC)+2
Instruction
Execution
Instruction
Execution
MCU
Operation Cycle
Note: See figure 14, MCU Operation Flowchart, for IF and IM operation.
Figure 19 MCU Operating Sequence (Low-Power Mode Operation)
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