MFB Dropper

ENTITY MFB_DROPPER IS

This component is able to drop the incoming packet when RX_DROP input is set to one. This input allows to specify the dropping for each MFB region separately.

Generics

Generic	Type	Default	Description
REGIONS	natural	4	any positive
REGION_SIZE	natural	8	any power of two
BLOCK_SIZE	natural	8	any power of two
ITEM_WIDTH	natural	8	any power of two
META_WIDTH	natural	2

Ports

Port	Type	Mode	Description
=====	CLOCK AND RESET	=====	=====
CLK	std_logic	in
RESET	std_logic	in
=====	INPUT MFB INTERFACE WITH DROP ENABLE FLAGS	=====	=====
RX_DATA	std_logic_vector(REGIONS*REGION_SIZE*BLOCK_SIZE*ITEM_WIDTH-1 downto 0)	in
RX_META	std_logic_vector(REGIONS*META_WIDTH-1 downto 0)	in
RX_SOF_POS	std_logic_vector(REGIONS*max(1,log2(REGION_SIZE))-1 downto 0)	in
RX_EOF_POS	std_logic_vector(REGIONS*max(1,log2(REGION_SIZE*BLOCK_SIZE))-1 downto 0)	in
RX_SOF	std_logic_vector(REGIONS-1 downto 0)	in
RX_EOF	std_logic_vector(REGIONS-1 downto 0)	in
RX_SRC_RDY	std_logic	in
RX_DST_RDY	std_logic	out
RX_DROP	std_logic_vector(REGIONS-1 downto 0)	in	Packet drop, valid with each SOF.
=====	OUTPUT MFB INTERFACE	=====	=====
TX_DATA	std_logic_vector(REGIONS*REGION_SIZE*BLOCK_SIZE*ITEM_WIDTH-1 downto 0)	out
TX_META	std_logic_vector(REGIONS*META_WIDTH-1 downto 0)	out
TX_SOF_POS	std_logic_vector(REGIONS*max(1,log2(REGION_SIZE))-1 downto 0)	out
TX_EOF_POS	std_logic_vector(REGIONS*max(1,log2(REGION_SIZE*BLOCK_SIZE))-1 downto 0)	out
TX_SOF	std_logic_vector(REGIONS-1 downto 0)	out
TX_EOF	std_logic_vector(REGIONS-1 downto 0)	out
TX_SRC_RDY	std_logic	out
TX_DST_RDY	std_logic	in