XSPICAP1=B_0x0, SDEXTRDY=B_0x0, VBRS=B_0x0, BYPASS=B_0x0, SDHILEVEL=B_0x0, VBE=B_0x0, USBREGEN=B_0x0, USB33RDY=B_0x0, XSPICAP2=B_0x0, LDOEN=B_0x0, USBHSREGEN=B_0x0, SMPSEXTHP=B_0x0, SDEN=B_0x0, USB33DEN=B_0x0
PWR control register 2
| BYPASS | Power management unit bypass Note: Illegal combinations of SDHILEVEL, SMPSEXTHP, SDEN, LDOEN and BYPASS are described in Table 41. 0 (B_0x0): Power management unit normal operation. 1 (B_0x1): Power management unit bypassed, voltage monitoring still active. |
| LDOEN | Low drop-out regulator enable Note: Illegal combinations of SDHILEVEL, SMPSEXTHP, SDEN, LDOEN and BYPASS are described in Table 41. 0 (B_0x0): Low drop-out regulator disabled. 1 (B_0x1): Low drop-out regulator enabled (default) |
| SDEN | SMPS step-down converter enable Note: Illegal combinations of SDHILEVEL, SMPSEXTHP, SDEN, LDOEN and BYPASS are described in Table 41. 0 (B_0x0): SMPS step-down converter disabled |
| SMPSEXTHP | SMPS external power delivery selection Note: Illegal combinations of SDHILEVEL, SMPSEXTHP, SDEN, LDOEN and BYPASS are described in Table 41. 0 (B_0x0): SMPS normal operating mode, no power delivery to external circuits 1 (B_0x1): SMPS external operating mode, power delivery to external circuits |
| SDHILEVEL | SMPS step-down converter voltage output for LDO or external supply This bit is used when both the LDO and SMPS step-down converter are enabled with SDEN and LDOEN enabled or when SMPSEXTHP is enabled. In this case SDHILEVEL has to be set to 1 to confirm the regulator settings 0 (B_0x0): Reset value 1 (B_0x1): 1.8V |
| VBE | VBAT charging enable 0 (B_0x0): VBAT battery charging disabled. 1 (B_0x1): VBAT battery charging enabled. |
| VBRS | VBAT charging resistor selection 0 (B_0x0): Charge VBAT through a 5 k resistor. 1 (B_0x1): Charge VBAT through a 1.5 k resistor. |
| XSPICAP1 | XSPI port 1 capacitor control bits see the product datasheet for more details 0 (B_0x0): XSPI Capacitor OFF (default) note: to confirm with analog design 1 (B_0x1): XSPI Capacitor set to 1/3 2 (B_0x2): XSPI Capacitor set to 2/3 3 (B_0x3): XSPI Capacitor set to full capacitance |
| XSPICAP2 | XSPI port 2 capacitor control bits see the product datasheet for more details 0 (B_0x0): XSPI Capacitor OFF (default) note: to confirm with analog design 1 (B_0x1): XSPI Capacitor set to 1/3 2 (B_0x2): XSPI Capacitor set to 2/3 3 (B_0x3): XSPI Capacitor set to full capacitance |
| EN_XSPIM1 | EN_XSPIM1: this bit allow the SW to enable the XSPI interface. The XSPIM_P1 supply must be stable prior to setting this bit. |
| EN_XSPIM2 | EN_XSPIM2: this bit allows the SW to enable the XSPI interface, when available. The XSPIM_P2 supply must be stable prior to setting this bit. It should also be set when FMC is used. |
| SDEXTRDY | SMPS step-down converter external supply ready This bit is set by hardware to indicate that the external supply from the SMPS step-down converter is ready. 0 (B_0x0): External supply not ready. 1 (B_0x1): External supply ready. |
| USB33DEN | VDD33_USB voltage level detector enable 0 (B_0x0): VDD33_USB voltage level detector disabled 1 (B_0x1): VDD33_USB voltage level detector enabled. |
| USBREGEN | USB regulator enable. 0 (B_0x0): USB regulator disabled 1 (B_0x1): USB regulator enabled. |
| USB33RDY | USB supply ready. 0 (B_0x0): USB33 supply not ready 1 (B_0x1): USB33 supply ready. |
| USBHSREGEN | USB HS regulator enable. 0 (B_0x0): USB HS PHY regulator disabled (default) 1 (B_0x1): USB HS PHY regulator enabled |