stm32 /stm32wl3 /STM32WL33 /PWRC /CR5

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Interpret as CR5

Description

CR5 register

Fields

SMPSLVL	SMPSLVL[3:0] SMPS Output Level Voltage Selection Select the SMPS output voltage with a granularity of 50mV. Default = ‘0100’ (1.4V) Vout = 1.2 + 0.05*SMPSOUT (V)
SMPSBOMSEL	SMPSBOMSEL: SMPS BOM Selection: 00: BOM1 01: BOM2 (default) 10: BOM3 11: n/a
SMPS_BOF_STATIC	SMPS_BOF_STATIC: SMPS Bypass on the Fly static 0 : disabled (by default) 1 : SMPS Bypass on the fly static is enabled (EN_SW=1)
NOSMPS_BOF	NOSMPS_BOF: No SMPS Mode to be used in accordance to SMPS_BOF_STATIC =1 When this bit is set, the SMPS regulator will be disabled. Note that this configuration should be used only SMPS_BOF_STATIC=1. 0 : No effect, SMPS is enabled. (default) 1 : SMPS is disabled;
SMPSLPOPEN	SMPSLPOPEN: In Low Power mode SMPS is in OPEN mode (instead of PRECHARGE mode). When this bit is set, when the chip is in Low power mode the SMPS regulator will be disabled (HZ) Documentation needed. 0 : in Low Power mode, SMPS is in PRECHARGE, output is connected to VDDIO. (default) 1 : in Low Power mode, SMPS is disabled, output is floating
SMPSFBYP	SMPSFB Force SMPS Regulator in bypass mode When this bit is set, the SMPS regulator will be forced to operate in precharge mode. the actual state of SMPS can be observed thanks to the replica SR2.SMPSBYPR. 0 : no effect (by default) 1 : SMPS is disabled and bypassed (ENABLE_3V3=0 and PRECHARGE_3V3=1)
NOSMPS	NOSMPS: No SMPS Mode When this bit is set, the SMPS regulator will be disabled. Note that this configuration should be used only when SMPS_FB pad is directly connected to VBATT or Vext, without L/C BOM. 0 : No effect, SMPS is enabled. (Default) 1 : SMPS is disabled;
SMPS_ENA_DCM	SMPS_ENA_DCM: enable discontinuous conduction mode 0 : disable (Default) 1 : enable
CLKDETR_DISABLE	CLKDETR_DISABLE: disable SMPS clock detection The SMPS clock detection enables an automatic SMPS bypass switching in case of unwanted loss of SMPS clock. 0 : SMPS clock detection enabled (default) 1 : SMPS clock detection disabled
SMPS_PRECH_CUR_SEL	SMPS_PRECH_CUR_SEL[1:0] Selection for SMPS PRECHARGE limit current 00: 2.5mA 01: 5mA 10: 10mA 11: 20mA (default)
SMPS_BOF_DYN	SMPS_BOF_DYN: SMPS Bypass on the Fly dynamic 0 : disabled (by default) 1 : SMPS Bypass on the fly dynamic is enabled (EN_LDO=1)

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