stm32 /stm32wba5 /STM32WBA50 /PWR /PWR_CR2

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Interpret as PWR_CR2

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (B_0x0)SRAM1PDS1 0 (B_0x0)SRAM2PDS1 0 (B_0x0)ICRAMPDS 0 (B_0x0)FLASHFWU

FLASHFWU=B_0x0, SRAM1PDS1=B_0x0, ICRAMPDS=B_0x0, SRAM2PDS1=B_0x0

Description

PWR control register 2

Fields

SRAM1PDS1

SRAM1 power-down in Stop modes (Stop 0, 1) Note: The SRAM1 retention in Standby mode is controlled by R1RSB1 bit in PWR_CR1.

0 (B_0x0): SRAM1 content retained in Stop modes

1 (B_0x1): SRAM1 content lost in Stop modes

SRAM2PDS1

SRAM2 power-down in Stop modes (Stop 0, 1) Note: The SRAM2 retention in Standby mode is controlled by R2RSB1 bit in PWR_CR1.

0 (B_0x0): SRAM2 content retained in Stop modes

1 (B_0x1): SRAM2 content lost in Stop modes

ICRAMPDS

ICACHE SRAM power-down in Stop modes (Stop 0, 1)

0 (B_0x0): ICACHE SRAM content retained in Stop modes

1 (B_0x1): ICACHE SRAM content lost in Stop modes

FLASHFWU

Flash memory fast wakeup from Stop modes (Stop 0, 1) This bit is used to obtain the best trade-off between low-power consumption and wakeup time when exiting the Stop 0 or Stop 1 modes. When this bit is set, the Flash memory remains in normal mode in Stop 0 and Stop 1 modes, which offers a faster startup time with higher consumption.

0 (B_0x0): Flash memory enters low-power mode in Stop 0 and Stop 1 modes (lower-power consumption).

1 (B_0x1): Flash memory remains in normal mode in Stop 0 and Stop 1 modes (faster wakeup time).

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