Use the Interrupt Priority Registers to assign a priority from 0 to 3 to each of the available interrupts. 0 is the highest priority, and 3 is the lowest.
| IP_4 | Priority of interrupt 4 |
| IP_5 | Priority of interrupt 5 |
| IP_6 | Priority of interrupt 6 |
| IP_7 | Priority of interrupt 7 |