OTG host channel 2 interrupt register
| XFRC | Transfer completed. Transfer completed normally without any errors. |
| CHH | Channel halted. Indicates the transfer completed abnormally either because of any USB transaction error or in response to disable request by the application. |
| AHBERR | AHB error This error is generated only in Internal DMA mode when an AHB error occurs during an AHB read/write operation. The application can read the corresponding DMA channel address register to get the error address. |
| 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. Indicates one of the following errors occurred on the USB. CRC check failure Timeout Bit stuff error False EOP |
| BBERR | Babble error. |
| FRMOR | Frame overrun. |
| DTERR | Data toggle error. |