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STM32WLE4JC 数据表(PDF) 32 Page - STMicroelectronics |
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STM32WLE4JC 数据表(HTML) 32 Page - STMicroelectronics |
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32 / 145 page  Functional overview STM32WLE5/E4xx 32/145 DS13105 Rev 8 Table 8. Low-power mode summary Mode name Entry Wakeup source(1) Wakeup system clock Effect on clocks Voltage regulators MR LPR Sleep (Sleep-now or Sleep-on-exit) WFI or return from ISR Any interrupt Same as before entering Sleep mode CPU clock OFF No effect on other clocks or analog clock sources ON ON WFE Wakeup event LPRun Set LPR bit Clear LPR bit Same as LPRun clock None OFF ON LPSleep Set LPR bit + WFI or return from ISR Any interrupt Same as before entering LPSleep mode CPU clock OFF No effect on other clocks or analog clock sources OFF ON Set LPR bit + WFE Wakeup event OFF ON Stop 0 LPMS = 0b000 + SLEEPDEEP bit + WFI or return from ISR or WFE Any EXTI line (configured in the EXTI registers). Specific peripherals events HSI16 when STOPWUCK = 1 in RCC_CFGR. MSI with the frequency before entering the Stop mode when STOPWUCK = 0. All clocks OFF except HSI16, LSI and LSE ON ON Stop 1 LPMS = 0b001 + SLEEPDEEP bit + WFI or return from ISR or WFE OFF Stop 2 (with I2C3, LPUART1, LPTIM1, SRAM1, SRAM2) LPMS = 0b010+ SLEEPDEEP bit + WFI or return from ISR or WFE Standby (with SRAM2) LPMS = 0b011+ Set RRS bit + SLEEPDEEP bit + WFI or return from ISR or WFE Wakeup PVD, RFIRQ, wakeup RFBUSY, WKUP pin edge, RTC and TAMP event, LSECSS, external reset in NRST pin, IWDG reset MSI 4 MHz All clocks OFF except LSI and LSE OFF ON Standby LPMS = 0b011 + Clear RRS bit + SLEEPDEEP bit + WFI or return from ISR or WFE OFF OFF Shutdown LPMS = 0b1xx + SLEEPDEEP bit + WFI or return from ISR or WFE WKUP pin edge, RTC and TAMP event, external reset in NRST pin MSI 4 MHz All clocks OFF except LSE OFF OFF 1. Refer to Table 7: Functionalities depending on system operating mode. |
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