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STM32W108C8

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<strong>STM32W108C8</strong><br />

System modules<br />

6.5.2 Basic sleep modes<br />

The power management state diagram in Figure 6 shows the basic operation of the power<br />

management controller.<br />

Figure 6.<br />

Power management state diagram<br />

CDBGPWRUPREQ set<br />

DEEP SLEEP<br />

CDBGPWRUPREQ cleared<br />

EMULATED<br />

DEEP SLEEP<br />

CDBGPWRUPREQ=0<br />

& CSYSPWRUPREQ=0<br />

CDBGPWRUPREQ=1<br />

& CSYSPWRUPREQ=0<br />

Wake up event<br />

OR CSYSPWRUPREQ set<br />

(resets the processor)<br />

Wake up event<br />

(resets the processor)<br />

PRE- DEEP<br />

SLEEP<br />

Deep sleep requested<br />

(WFI instruction with SLEEP_DEEP=1)<br />

RUNNING<br />

CSYSPWRUPREQ & INHIBIT<br />

Sleep requested<br />

(WFI instruction with SLEEP_DEEP=0)<br />

Interrupt<br />

IDLE SLEEP<br />

Doc ID 018587 Rev 2 50/215

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