VDDIO4VRSEL=B_0x0, VDDIO4SV=B_0x0, VDDIO4RDY=B_0x0, VDDIO4VRSTBY=B_0x0, VDDIO4VMEN=B_0x0
PWR supply voltage monitoring control register 1
| VDDIO4VMEN | V less than sub>DDIO4 less than /sub>independent I/O voltage monitor enable 0 (B_0x0): V less than sub>DDIO4 less than /sub> voltage monitor disabled 1 (B_0x1): V less than sub>DDIO4 less than /sub> voltage monitor enabled |
| VDDIO4SV | V less than sub>DDIO4 less than /sub>independent I/O supply valid. 0 (B_0x0): V less than sub>DDIO4 less than /sub> is not present. Logical and electrical isolation is applied to ignore this supply. 1 (B_0x1): V less than sub>DDIO4 less than /sub> is valid. |
| VDDIO4RDY | V less than sub>DDIO4 less than /sub>ready 0 (B_0x0): V less than sub>DDIO4 less than /sub> is below the threshold of the V less than sub>DDIO4 less than /sub> voltage monitor. 1 (B_0x1): V less than sub>DDIO4 less than /sub> is equal or above the threshold of the V less than sub>DDIO4 less than /sub> voltage monitor. |
| VDDIO4VRSEL | V less than sub>DDIO4 less than /sub> I/O voltage range selection 0 (B_0x0): 3v3 voltage range selected. If V less than sub>DDIO4 less than /sub> is in 1v8 range with this setting, I/Os work in degraded mode. 1 (B_0x1): 1v8 voltage range selected. HSLV_VDDIO4 option bit must be set to allow 1v8 voltage range operation. Setting this configuration while V less than sub>DDIO4 less than /sub> is in 3v3 range damages the device. |
| VDDIO4VRSTBY | V less than sub>DDIO4 less than /sub> I/O voltage range Standby mode 0 (B_0x0): VDDIO4VRSEL not retained in Standby mode 1 (B_0x1): VDDIO4VRSEL retained in Standby mode |