Product data

HD404818 Series

The low-power mode operation sequence is shown in figure 17. With the IE flag cleared and an interrupt

flag set together with its interrupt mask cleared, if a STOP/SBY instruction is executed, the instruction is

cancelled (regarded as an NOP) and the following instruction is executed. Before executing a STOP/SBY

instruction, make sure all interrupt flags are cleared or all interrupts are masked.

Power on

RESET = 1 ?

Reset

MCU

operation

cycle

Yes

Figure 15 MCU Operating Sequence (power on)