UCPD1_STDBY=B_0x0, UCPD1_DBDIS=B_0x0, EIWUL=B_0x0, RRS=B_0x0
Power control register 3
| EWUP1 | Enable Wakeup pin WKUP1 When this bit is set, the external wakeup pin WKUP1 is enabled and triggers a wakeup from Standby or Shutdown event when a rising or a falling edge occurs. The active edge is configured via the WP1 bit in the PWR_CR4 register. |
| EWUP2 | Enable Wakeup pin WKUP2 When this bit is set, the external wakeup pin WKUP2 is enabled and triggers a wakeup from Standby or Shutdown event when a rising or a falling edge occurs. The active edge is configured via the WP2 bit in the PWR_CR4 register. |
| EWUP3 | Enable Wakeup pin WKUP3 When this bit is set, the external wakeup pin WKUP3 is enabled and triggers a wakeup from Standby or Shutdown event when a rising or a falling edge occurs. The active edge is configured via the WP3 bit in the PWR_CR4 register. |
| EWUP4 | Enable Wakeup pin WKUP4 When this bit is set, the external wakeup pin WKUP4 is enabled and triggers a wakeup from Standby or Shutdown event when a rising or a falling edge occurs. The active edge is configured via the WP4 bit in the PWR_CR4 register. |
| EWUP5 | Enable Wakeup pin WKUP5 When this bit is set, the external wakeup pin WKUP5 is enabled and triggers a wakeup from Standby or Shutdown event when a rising or a falling edge occurs.The active edge is configured via the WP5 bit in the PWR_CR4 register. |
| RRS | SRAM2 retention in Standby mode 0 (B_0x0): SRAM2 is powered off in Standby mode (SRAM2 content is lost). 1 (B_0x1): SRAM2 is powered by the low-power regulator in Standby mode (SRAM2 content is kept). |
| APC | Apply pull-up and pull-down configuration When this bit is set, the I/O pull-up and pull-down configurations defined in the PWR_PUCRx and PWR_PDCRx registers are applied. When this bit is cleared, the PWR_PUCRx and PWR_PDCRx registers are not applied to the I/Os. |
| UCPD1_STDBY | UCPD1_STDBY USB Type-C and Power Delivery standby mode. 0 (B_0x0): Write ‘0’ immediately after standby exit when using UCPD1, (and before writing any UCPD1 registers). 1 (B_0x1): Write ‘1’ just before entering standby when using UCPD1. |
| UCPD1_DBDIS | USB Type-C and Power Delivery Dead Battery disable. After exiting reset, the USB Type-C “dead battery” behavior is enabled, which may have a pull-down effect on CC1 and CC2 pins. It is recommended to disable it in all cases, either to stop this pull-down or to hand over control to the UCPD1 (which should therefore be initialized before doing the disable). 0 (B_0x0): Enable USB Type-C dead battery pull-down behavior on UCPD1_CC1 and UCPD1_CC2 pins. 1 (B_0x1): Disable USB Type-C dead battery pull-down behavior on UCPD1_CC1 and UCPD1_CC2 pins. |
| EIWUL | Enable internal wakeup line 0 (B_0x0): Internal wakeup line disable. 1 (B_0x1): Internal wakeup line enable. |