OTG host channel 6 interrupt register
| XFRC | Transfer completed. |
| CHH | Channel halted. |
| AHBERR | AHB error |
| STALL | STALL response received interrupt. |
| NAK | NAK response received interrupt. |
| ACK | ACK response received/transmitted interrupt. |
| NYET | Not yet ready response received interrupt. |
| TXERR | Transaction error. |
| BBERR | Babble error. |
| FRMOR | Frame overrun. |
| DTERR | Data toggle error. |