GPIO status
| OUTFROMPERI | output signal from selected peripheral, before register override is applied |
| OUTTOPAD | output signal to pad after register override is applied |
| OEFROMPERI | output enable from selected peripheral, before register override is applied |
| OETOPAD | output enable to pad after register override is applied |
| INFROMPAD | input signal from pad, before override is applied |
| INTOPERI | input signal to peripheral, after override is applied |
| IRQFROMPAD | interrupt from pad before override is applied |
| IRQTOPROC | interrupt to processors, after override is applied |