This register indicates the status of an endpoint with respect to USB- and AHB-related events. It is shown in Figure724. The application must read this register when the OUT endpoints interrupt bit of the GINTSTS register (OEPINT bit in GINTSTS) is set. Before the application can read this register, it must first read the DAINT register to get the exact endpoint number for the DOEPINTx register. The application must clear the appropriate bit in this register to clear the corresponding bits in the DAINT and GINTSTS registers.
| XFRC | XFRC |
| EPDISD | EPDISD |
| AHBERR | AHBERR |
| STUP | STUP |
| OTEPDIS | OTEPDIS |
| STSPHSRX | STSPHSRX |
| B2BSTUP | B2BSTUP |
| OUTPKTERR | OUTPKTERR |
| BNA | BNA |
| BERR | BERR |
| NAK | NAK |
| NYET | NYET |
| STPKTRX | STPKTRX |