38.11.1.1 Transmit Queue Interrupts

CxTXQCON contains the interrupt enable flags and CxTXQSTA contains the interrupt flags for the TXQ.

The TXQ interrupt occurs when there is a change in the status of the TXQ. There are two interrupt sources:
  • TXQ Not Full Interrupt Flag (TXQNIF)
  • TXQ Empty Interrupt Flag (TXQEIF)

Both interrupts can be enabled individually. The interrupts cannot be cleared by the application; they will be cleared when the condition of the FIFO terminates.

Both interrupt sources are OR’d together and reflected in the TFIF0 flag (CxTXIF[0]).