USB SOF, BUS RESET and EP0 Interrupt Mask
| SOF_INTR_MASK | Set to 1 to enable interrupt corresponding to interrupt request register |
| BUS_RESET_INTR_MASK | Set to 1 to enable interrupt corresponding to interrupt request register |
| EP0_INTR_MASK | Set to 1 to enable interrupt corresponding to interrupt request register |
| LPM_INTR_MASK | Set to 1 to enable interrupt corresponding to interrupt request register |
| RESUME_INTR_MASK | Set to 1 to enable interrupt corresponding to interrupt request register |