14.13.1.3 Transmit FIFO Interrupts - TFIF

The transmit FIFO interrupts occur when there is a change in the status of the transmit FIFO. There are three interrupt sources:

• Transmit FIFO Not Full Interrupt Flag (TFNIF)
• Transmit FIFO Half Empty Interrupt Flag (TFHIF)
• Transmit FIFO Empty Interrupt Flag (TFEIF)

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

The three interrupt sources are OR’d together and reflected in the CxTXIF[31:1] flags.