MFB Trasformer

ENTITY MFB_TRANSFORMER IS

This component performs changing MFB word size by increasing or decreasing the number of Regions on RX to TX.

There are two possible solutions:

• RX_REGIONS > TX_REGIONS - Multiple Regions in one word on the RX side are sent in multiple words with fewer Regions from the TX side.

• RX_REGIONS < TX_REGIONS - Multiple words on the RX side are put together to form one word with multiple Regions on the TX side.

Generics

Generic	Type	Default	Description
=====	MFB Configuration	=====	=====
RX_REGIONS	integer	2
TX_REGIONS	integer	1
REGION_SIZE	integer	1
BLOCK_SIZE	integer	8
ITEM_WIDTH	integer	32
META_WIDTH	integer	0

Ports

Port	Type	Mode	Description
=====	Clock and Reset	=====	=====
CLK	std_logic	in
RESET	std_logic	in
=====	MFB input interface	=====	=====
RX_DATA	std_logic_vector(RX_REGIONS*REGION_SIZE*BLOCK_SIZE*ITEM_WIDTH-1 downto 0)	in
RX_META	std_logic_vector(RX_REGIONS*META_WIDTH-1 downto 0)	in
RX_SOP	std_logic_vector(RX_REGIONS-1 downto 0)	in
RX_EOP	std_logic_vector(RX_REGIONS-1 downto 0)	in
RX_SOP_POS	std_logic_vector(RX_REGIONS*max(1, log2(REGION_SIZE))-1 downto 0)	in
RX_EOP_POS	std_logic_vector(RX_REGIONS*max(1, log2(REGION_SIZE*BLOCK_SIZE))-1 downto 0)	in
RX_SRC_RDY	std_logic	in
RX_DST_RDY	std_logic	out
=====	MFB output interface	=====	=====
TX_DATA	std_logic_vector(TX_REGIONS*REGION_SIZE*BLOCK_SIZE*ITEM_WIDTH-1 downto 0)	out
TX_META	std_logic_vector(TX_REGIONS*META_WIDTH-1 downto 0)	out
TX_SOP	std_logic_vector(TX_REGIONS-1 downto 0)	out
TX_EOP	std_logic_vector(TX_REGIONS-1 downto 0)	out
TX_SOP_POS	std_logic_vector(TX_REGIONS*max(1, log2(REGION_SIZE))-1 downto 0)	out
TX_EOP_POS	std_logic_vector(TX_REGIONS*max(1, log2(REGION_SIZE*BLOCK_SIZE))-1 downto 0)	out
TX_SRC_RDY	std_logic	out
TX_DST_RDY	std_logic	in