Interrupt Mask Register
| EP0INT | Mask Endpoint 0 Interrupt |
| EP1INT | Mask Endpoint 1 Interrupt |
| EP2INT | Mask Endpoint 2 Interrupt |
| EP3INT | Mask Endpoint 3 Interrupt |
| EP4INT | Mask Endpoint 4 Interrupt |
| EP5INT | Mask Endpoint 5 Interrupt |
| EP6INT | Mask Endpoint 6 Interrupt |
| EP7INT | Mask Endpoint 7 Interrupt |
| RXSUSP | Mask UDP Suspend Interrupt |
| RXRSM | Mask UDP Resume Interrupt. |
| EXTRSM | |
| SOFINT | Mask Start Of Frame Interrupt |
| BIT12 | UDP_IMR Bit 12 |
| WAKEUP | USB Bus Wakeup Interrupt |