ST STM32G0 1 Series User Manual

RM0444 Rev 5 147/1390
RM0444 Power control (PWR)
159
4.4.4 Power control register 4 (PWR_CR4)
Address offset: 0x0C
Reset value: 0x0000 0000. This register is not reset when exiting Standby modes and with
the PWRRST bit in the APB peripheral reset register 1 (RCC_APBRSTR1).
Access: Additional APB cycles are needed to access this register vs. a standard APB
access (3 for a write and 2 for a read).
Bit 4 EWUP5: Enable WKUP5 wakeup pin
When this bit is set, the WKUP5 external wakeup pin is enabled and triggers a wakeup from
Standby or Shutdown mode when a rising or a falling edge occurs.The active edge is
configured via the WP5 bit in the PWR_CR4 register.
Bit 3 EWUP4: Enable WKUP4 wakeup pin
When this bit is set, the WKUP4 external wakeup pin is enabled and triggers a wakeup from
Standby or Shutdown mode when a rising or a falling edge occurs. The active edge is
configured via the WP4 bit in the PWR_CR4 register.
Bit 2 EWUP3: Enable WKUP3 wakeup pin
When this bit is set, the WKUP3 external wakeup pin is enabled and triggers a wakeup from
Standby or Shutdown mode when a rising or a falling edge occurs. The active edge is
configured via the WP3 bit of the PWR_CR4 register.
Bit 1 EWUP2: Enable WKUP2 wakeup pin
When this bit is set, the WKUP2 external wakeup pin is enabled and triggers a wakeup from
Standby or Shutdown mode when a rising or a falling edge occurs. The active edge is
configured via the WP2 bit of the PWR_CR4 register.
Bit 0 EWUP1: Enable WKUP1 wakeup pin
When this bit is set, the WKUP1 external wakeup pin is enabled and triggers a wakeup from
Standby or Shutdown mode when a rising or a falling edge occurs. The active edge is
configured via the WP1 bit of the PWR_CR4 register.
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. Res. Res. Res. Res. Res. VBRS VBE Res. Res. WP6 WP5 WP4 WP3 WP2 WP1
rw rw rw rw rw rw rw rw
Bits 31:10 Reserved, must be kept at reset value.
Bit 9 VBRS: V
BAT
battery charging resistor selection
0: 5 kΩ
1: 1.5 kΩ
Bit 8 VBE: V
BAT
battery charging enable
0: Disable
1: Enable
Bits 7:6 Reserved, must be kept at reset value.

ST STM32G0 1 Series Specifications

General

Brand	ST
Model	STM32G0 1 Series
Category	Microcontrollers
Language	English