MVB MUX

Multi-value bus multiplexer. Selects, which input MVB will be transmitting to output MVB.

The selection is done base on received select transactions. For each RX transaction, there must be exactly one select transaction. If there is none, the component will wait until one is received.

ENTITY GEN_MVB_MUX IS

Multi-value bus multiplexer. Selects, which input MVB interface will be transmitting to output MVB. The selection is done base on received select transactions. For each RX transaction, there must be exactly one select transaction. If there is none, the component will wait until one is received.

Generics

Generic	Type	Default	Description
MVB_ITEMS	natural	1
DATA_WIDTH	natural	64	One MVB item width
MUX_WIDTH	natural	2	Number of RX MVB interfaces
FIFO_DEPTH	natural	2	Depth of select FIFO
DEVICE	string	“ULTRASCALE”

Ports

Port	Type	Mode	Description
CLK	std_logic	in	Clock signal
RESET	std_logic	in	Synchronous reset with CLK
RX_DATA	std_logic_vector(MUX_WIDTH * MVB_ITEMS * DATA_WIDTH - 1 downto 0)	in	MUX_WIDTH of RX MVB interfaces
RX_VLD	std_logic_vector(MUX_WIDTH * MVB_ITEMS - 1 downto 0)	in
RX_SRC_RDY	std_logic_vector(MUX_WIDTH - 1 downto 0)	in
RX_DST_RDY	std_logic_vector(MUX_WIDTH - 1 downto 0)	out
TX_DATA	std_logic_vector(MVB_ITEMS * DATA_WIDTH - 1 downto 0)	out	TX MVB interface
TX_VLD	std_logic_vector(MVB_ITEMS - 1 downto 0)	out
TX_SRC_RDY	std_logic	out
TX_DST_RDY	std_logic	in
RX_SEL_DATA	std_logic_vector(max(log2(MUX_WIDTH), 1) - 1 downto 0)	in	MVB interface for select signal, for each RX transaction one wants to multiplex, there must be one select transaction.
RX_SEL_VLD	std_logic_vector(0 downto 0)	in
RX_SEL_SRC_RDY	std_logic	in
RX_SEL_DST_RDY	std_logic	out