Interrupt Mask Register
| CDET | Card detect. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| RE | Response error. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| CDONE | Command done. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| DTO | Data transfer over. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| TXDR | Transmit FIFO data request. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| RXDR | Receive FIFO data request. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| RCRC | Response CRC error. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| DCRC | Data CRC error. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| RTO | Response time-out. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| DRTO | Data read time-out. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| HTO | Data starvation-by-host time-out (HTO) /Volt_switch_int. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| FRUN | FIFO underrun/overrun error. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| HLE | Hardware locked write error. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| SBE | Start-bit error. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| ACD | Auto command done. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| EBE | End-bit error (read)/Write no CRC. Bits used to mask unwanted interrupts. Value of 0 masks interrupt; value of 1 enables interrupt. |
| SDIO_INT_MASK | Mask SDIO interrupt. When masked, SDIO interrupt detection for card is disabled. A 0 masks an interrupt, and 1 enables an interrupt. In MMC-Ver3.3-only mode, this bit is always 0. |
| RESERVED | Reserved |