Interrupt enable register (EXTINT_INTEN)
| INTEN0 | Interrupt enable or disable on line 0 |
| INTEN1 | Interrupt enable or disable on line 1 |
| INTEN2 | Interrupt enable or disable on line 2 |
| INTEN3 | Interrupt enable or disable on line 3 |
| INTEN4 | Interrupt enable or disable on line 4 |
| INTEN5 | Interrupt enable or disable on line 5 |
| INTEN6 | Interrupt enable or disable on line 6 |
| INTEN7 | Interrupt enable or disable on line 7 |
| INTEN8 | Interrupt enable or disable on line 8 |
| INTEN9 | Interrupt enable or disable on line 9 |
| INTEN10 | Interrupt enable or disable on line 10 |
| INTEN11 | Interrupt enable or disable on line 11 |
| INTEN12 | Interrupt enable or disable on line 12 |
| INTEN13 | Interrupt enable or disable on line 13 |
| INTEN14 | Interrupt enable or disable on line 14 |
| INTEN15 | Interrupt enable or disable on line 15 |
| INTEN16 | Interrupt enable or disable on line 16 |
| INTEN17 | Interrupt enable or disable on line 17 |
| INTEN18 | Interrupt enable or disable on line 18 |
| INTEN19 | Interrupt enable or disable on line 19 |
| INTEN20 | Interrupt enable or disable on line 20 |