OTG device OUT endpoint 4 interrupt register
| XFRC | Transfer completed interrupt |
| EPDISD | Endpoint disabled interrupt |
| AHBERR | AHB error |
| STUP | SETUP phase done |
| OTEPDIS | OUT token received when endpoint disabled |
| STSPHSRX | Status phase received for control write |
| B2BSTUP | Back-to-back SETUP packets received |
| OUTPKTERR | OUT packet error |
| BERR | Babble error interrupt |
| NAK | NAK input |
| NYET | NYET interrupt |
| STPKTRX | Setup packet received |