register DRQSEL
| USBEP1 | bitfield USBEP1 |
| USBEP2 | bitfield USBEP2 |
| USBEP3 | bitfield USBEP3 |
| USBEP4 | bitfield USBEP4 |
| USBEP5 | bitfield USBEP5 |
| ADCSCAN0 | bitfield ADCSCAN0 |
| ADCSCAN1 | bitfield ADCSCAN1 |
| ADCSCAN2 | bitfield ADCSCAN2 |
| IRQ0BT0 | bitfield IRQ0BT0 |
| IRQ0BT2 | bitfield IRQ0BT2 |
| IRQ0BT4 | bitfield IRQ0BT4 |
| IRQ0BT6 | bitfield IRQ0BT6 |
| MFS0RX | bitfield MFS0RX |
| MFS0TX | bitfield MFS0TX |
| MFS1RX | bitfield MFS1RX |
| MFS1TX | bitfield MFS1TX |
| MFS2RX | bitfield MFS2RX |
| MFS2TX | bitfield MFS2TX |
| MFS3RX | bitfield MFS3RX |
| MFS3TX | bitfield MFS3TX |
| MFS4RX | bitfield MFS4RX |
| MFS4TX | bitfield MFS4TX |
| MFS5RX | bitfield MFS5RX |
| MFS5TX | bitfield MFS5TX |
| MFS6RX | bitfield MFS6RX |
| MFS6TX | bitfield MFS6TX |
| MFS7RX | bitfield MFS7RX |
| MFS7TX | bitfield MFS7TX |
| EXINT0 | bitfield EXINT0 |
| EXINT1 | bitfield EXINT1 |
| EXINT2 | bitfield EXINT2 |
| EXINT3 | bitfield EXINT3 |