1.3.2.1 Over-Voltage Tolerance for GPIO
(Ask a Question)If GPIO is configured with the following settings, GPIO supports over-voltage tolerance, ensuring that the I/O signal at the pad is at a higher potential than the VDDIx power supply.
| Standard | OE | Clamp Diode | VREF (Input) | Weak Pull-Up/ Pull-Down | Termination | Hot-plug |
|---|---|---|---|---|---|---|
| PCI | x | ON | ON | ON | ON | Disabled |
| GPIO | 1 | ON | ON | ON | ON | Disabled |
| 0 | OFF | OFF | OFF | OFF | Enabled |
For recommended operating conditions about over-voltage tolerance, see PolarFire SoC Datasheet.