38.11.1.2 Receive FIFO Interrupts (RFIF)
The receive FIFO interrupts occur when there is a change in the status of
the receive FIFO. There are three interrupt sources:
- Receive FIFO Full Interrupt Flag (RFFIF)
- Receive FIFO Half Full Interrupt Flag (RFHIF)
- Receive FIFO Not Empty Interrupt Flag (RFNIF)
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 RFIF[31:16] (CxRXIF[31:16]) and RFIF[15:1] (CxRXIF[15:1]) flags.