EIWUL=B_0x0, RRS=B_0x0
Power control register 3
| EWUP1 | Enable Wake-up pin WKUP1 When this bit is set, the external wake-up pin WKUP1 is enabled and triggers a wake-up 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 Wake-up pin WKUP2 When this bit is set, the external wake-up pin WKUP2 is enabled and triggers a wake-up 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 Wake-up pin WKUP3 When this bit is set, the external wake-up pin WKUP3 is enabled and triggers a wake-up 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 Wake-up pin WKUP4 When this bit is set, the external wake-up pin WKUP4 is enabled and triggers a wake-up 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 Wake-up pin WKUP5 When this bit is set, the external wake-up pin WKUP5 is enabled and triggers a wake-up 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. |
| EWUP7 | Enable Wake-up pin WKUP7. When this bit is set, the external wake-up pin WKUP7 is enabled and triggers a wake-up from Standby or Shutdown event when a rising or a falling edge occurs.The active edge is configured via the WP7 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). |
| ENULP | Enable ULP sampling When this bit is set, the BORL, BORH and PVD are periodically sampled instead continuous monitoring to reduce power consumption. Fast supply drop between two sample/compare phases is not detected in this mode. This bit has impact only on STOP2, Standby and shutdown low power modes. |
| 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, instead the I/Os are in floating mode during Standby or configured according GPIO controller GPIOx_PUPDR register during RUN mode. |
| EIWUL | Enable internal wake-up line 0 (B_0x0): Internal wake-up line disable. 1 (B_0x1): Internal wake-up line enable. |