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Power control (PWR) RM0453

270/1450 RM0453 Rev 5

6.6.6 Power status register 2 (PWR_SR2)

This register is partially reset when exiting Standby/Shutdown modes.

Address offset: 0x014

Reset value: 0x0000 0000

Bit 11 WRFBUSYF: Radio busy wake-up flag

This bit is set when a wake-up event is detected on radio busy. It is cleared by writing ‘1’ in

the CWRFBUSYF bit of the PWR_SCR register.

Bits 10:9 Reserved, must be kept at reset value.

Bit 8 WPVDF: Wake-up PVD flag

This bit is set when a wake-up event is detected on PVD. It is cleared by writing ‘1’ in the

CWPVDF bit of the PWR_SCR register.

Bits 7:3 Reserved, must be kept at reset value.

Bit 2 WUF3: Wake-up flag 3

This bit is set when a wake-up event is detected on wake-up pin, WKUP3. It is cleared by

writing 1 in the CWUF3 bit of the PWR status clear register (PWR_SCR).

Bit 1 WUF2: Wake-up flag 2

This bit is set when a wake-up event is detected on wake-up pin, WKUP2. It is cleared by

writing 1 in the CWUF2 bit of the PWR status clear register (PWR_SCR).

Bit 0 WUF1: Wake-up flag 1

This bit is set when a wake-up event is detected on wake-up pin, WKUP1. It is cleared by

writing 1 in the CWUF1 bit of the PWR status clear register (PWR_SCR).

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.

1514131211109876543210

Res. PVMO3 Res. Res. PVDO VOSF

REGLPF

REGLPS

FLASHRDY

REGMRS

RFEOLF

LDORDY

SMPSRDY

RFBUSYMS

RFBUSYS

C2BOOTS

r rrrrrrrrrrrr

Bits 31:15 Reserved, must be kept at reset value.

Bit 14 PVMO3: Peripheral voltage monitoring output: V

DDA

versus 1.62 V

0: V

DDA

voltage above PVM3 threshold (around 1.62 V)

1: V

DDA

voltage below PVM3 threshold (around 1.62 V)

Note: PVMO3 is cleared when PVM3 is disabled (PVME3 = 0). After enabling PVM3, the

PVM3 output is valid after the PVM3 wake-up time.

Bits 13:12 Reserved, must be kept at reset value.

Bit 11 PVDO: Programmable voltage detector output

0: V

or voltage level on PVD_IN above the selected PVD threshold

1: V

or voltage level on PVD_IN below the selected PVD threshold

Brand	STMicroelectronics
Model	STM32WL5 Series
Category	Microcontrollers
Language	English

STMicroelectronics STM32WL5 Series User Manual

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