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8 power-down mode – Renesas MCU Board for PC4504 Emulator System M34570T-MCU User Manual

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5.8 Power-down Mode

In the power-down mode, the M34570T-MCU operates differently from the actual chip of each
MCU.

(1) Power-down operation of M34570T-MCU

Although the actual chip of each MCU is placed in the power-down mode by executing a
combination of EPOF and POF instructions, the M34570T-MCU is placed in the power-down
mode by only the POF instruction.

In the M34570T-MCU, the EPOF instruction does not have any effect.

Program example 5.1

Program example 5.2

RC

INY

EPOF

POF


Actual MCU

The power-down mode works.

M34570T-MCU

The power-down mode works.

RC

INY

POF



Actual MCU

The power-down mode does NOT work.

M34570T-MCU

The power-down mode works.