Receive a Packet - 4.3 English

AXI4-Stream FIFO LogiCORE IP Product Guide (PG080)

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4.3 English
  1. On receiving the RX Interrupt, the FIFOHandler interrupt handler is called which in turn calls the FIFORecvHandler.
  2. Read RLR to find the number of bytes.
  3. Read the number of bytes till the number of bytes read from RLR while checking the occupancy by using the XLlFifo_iRxOccupancy function.
  4. Clear the ISR.
  5. Check if there is an Interrupt pending for RX. Go to step 2.