Interrupt enable bits
| RX_START_INT_ENA | This is the interrupt enable bit for UHCI_RX_START_INT interrupt. |
| TX_START_INT_ENA | This is the interrupt enable bit for UHCI_TX_START_INT interrupt. |
| RX_HUNG_INT_ENA | This is the interrupt enable bit for UHCI_RX_HUNG_INT interrupt. |
| TX_HUNG_INT_ENA | This is the interrupt enable bit for UHCI_TX_HUNG_INT interrupt. |
| IN_DONE_INT_ENA | This is the interrupt enable bit for UHCI_IN_DONE_INT interrupt. |
| IN_SUC_EOF_INT_ENA | This is the interrupt enable bit for UHCI_IN_SUC_EOF_INT interrupt. |
| IN_ERR_EOF_INT_ENA | This is the interrupt enable bit for UHCI_IN_ERR_EOF_INT interrupt. |
| OUT_DONE_INT_ENA | This is the interrupt enable bit for UHCI_OUT_DONE_INT interrupt. |
| OUT_EOF_INT_ENA | This is the interrupt enable bit for UHCI_OUT_EOF_INT interrupt. |
| IN_DSCR_ERR_INT_ENA | This is the interrupt enable bit for UHCI_IN_DSCR_ERR_INT interrupt. |
| OUT_DSCR_ERR_INT_ENA | This is the interrupt enable bit for UHCI_OUT_DSCR_ERR_INT interrupt. |
| IN_DSCR_EMPTY_INT_ENA | This is the interrupt enable bit for UHCI_IN_DSCR_EMPTY_INT interrupt. |
| OUTLINK_EOF_ERR_INT_ENA | This is the interrupt enable bit for UHCI_OUTLINK_EOF_ERR_INT interrupt. |
| OUT_TOTAL_EOF_INT_ENA | This is the interrupt enable bit for UHCI_OUT_TOTAL_EOF_INT interrupt. |
| SEND_S_REG_Q_INT_ENA | This is the interrupt enable bit for UHCI_SEND_S_REG_Q_INT interrupt. |
| SEND_A_REG_Q_INT_ENA | This is the interrupt enable bit for UHCI_SEND_A_REG_Q_INT interrupt. |
| DMA_INFIFO_FULL_WM_INT_ENA | This is the interrupt enable bit for UHCI_DMA_INFIFO_FULL_WM_INT interrupt. |