Packet format

The parity bit is calculated by the NI and the processor has no control over it.

Flit type is generated by the NI and process has no control over it.

SOURCE ADDRESS is added automatically by the NI (the processor has no control over it)

DESTINATION ADDRESS is writen in the first write by the PE in FIFO_Data_out(13 downto 0)

PACEKT ID is determined and added by the NI (the processor has no control over it)

PACKET LENGTH is written in the 2nd write by PE in FIFO_Data_out(27 downto 14)

PAYLOAD DATA is written by the PE in FIFO_Data_out(27 downto 0)

PAYLOAD DATA is written by the PE in FIFO_Data_out(27 downto 0)