I2S interrupt clear register.
| RX_DONE_INT_CLR | Set this bit to clear the i2s_rx_done_int interrupt  |  
| TX_DONE_INT_CLR | Set this bit to clear the i2s_tx_done_int interrupt  |  
| RX_HUNG_INT_CLR | Set this bit to clear the i2s_rx_hung_int interrupt  |  
| TX_HUNG_INT_CLR | Set this bit to clear the i2s_tx_hung_int interrupt  |