GigaDevice Semiconductor GD32F3x0 - Page 68

GD32F3x0 User Manual
68
1: LDO voltage select ready
14
WUPEN6
WKUP Pin6 (PB15) Enable
0: Disable WKUP pin6 function
1: Enable WKUP pin6 function
If WUPEN6 is set before entering the Standby mode, a rising edge on the WKUP
pin6 wakes up the system from the Standby mode. As the WKUP pin6 is active
high, the WKUP pin6 is internally configured to input pull down mode. And set this
bit will trigger a wakeup event when the input is already high.
13
WUPEN5
WKUP Pin5 (PB5) Enable
0: Disable WKUP pin5 function
1: Enable WKUP pin5 function
If WUPEN5 is set before entering the Standby mode, a rising edge on the WKUP
pin5 wakes up the system from the Standby mode. As the WKUP pin5 is active
high, the WKUP pin5 is internally configured to input pull down mode. And set this
bit will trigger a wakeup event when the input is already high.
12
WUPEN4
WKUP Pin4 (PC5) Enable
0: Disable WKUP pin4 function
1: Enable WKUP pin4 function
If WUPEN4 is set before entering the Standby mode, a rising edge on the WKUP
pin4 wakes up the system from the Standby mode. As the WKUP pin4 is active
high, the WKUP pin4 is internally configured to input pull down mode. And set this
bit will trigger a wakeup event when the input is already high.
11:10
Reserved
Must be kept at reset value.
9
WUPEN1
WKUP Pin 1 (PC13) Enable
0: Disable WKUP pin1 function
1: Enable WKUP pin1 function
If WUPEN1 is set before entering the Standby mode, a rising edge on the WKUP
pin1 wakes up the system from the Standby mode. As the WKUP pin1 is active
high, the WKUP pin1 is internally configured to input pull down mode. And set this
bit will trigger a wakeup event when the input is already high.
8
WUPEN0
WKUP Pin 0 (PA0) Enable
0: Disable WKUP pin0 function
1: Enable WKUP pin0 function
If WUPEN0 is set before entering the Standby mode, a rising edge on the WKUP
pin0 wakes up the system from the Standby mode. As the WKUP pin0 is active
high, the WKUP pin0 is internally configured to input pull down mode. And set this
bit will trigger a wakeup event when the input is already high.
7:3
Reserved
Must be kept at reset value.
2
LVDF
Low Voltage Detector Status Flag
0: Low Voltage event has not occurred (V
DD
is higher than the specified LVD