Function PIC_RFIFO - Read a block of data from the PCI FIFO PIC p Handle to Device int data[] Array of words to receive FIFO data int bytes Number of bytes to read int flags 0=Normal, FLG_NOWAIT only reads what is currently available Reads a block of data from the PCI Interface FIFO register. This is used to transfer non-DMA blocks of data from the Processor.