USB interrupt enable register
| EP_INT_EN | If this bit is set and the corresponding USB interrupt status bit is set, a HW interrupt is generated on the interrupt line indicated by the corresponding USB interrupt routing bit. |
| RESERVED | Reserved |
| FRAME_INT_EN | If this bit is set and the corresponding USB interrupt status bit is set, a HW interrupt is generated on the interrupt line indicated by the corresponding USB interrupt routing bit. |
| DEV_INT_EN | If this bit is set and the corresponding USB interrupt status bit is set, a HW interrupt is generated on the interrupt line indicated by the corresponding USB interrupt routing bit. |