MVB Shakedown

ENTITY MVB_SHAKEDOWN IS

Converts RX_ITEMS item input MVB to TX_ITEMS amount of single item MVB interfaces. Items can be read independetly and in order (out of order is not tested, UVM verification needed).

Generics

Generic	Type	Default	Description
RX_ITEMS	natural	4	RX MVB item count
TX_ITEMS	natural	1	TX MVB independent interfaces count (can be merged to one MVB with MERGE component)
ITEM_WIDTH	natural	128	Data item width
SHAKE_PORTS	natural	2	Shake ports, when 1, RX_ITEMS must be read from TX interface to accept next transaction on RX MVB. When 2, RX_ITEMS/2 must be read, etc. Scale this number carefully, consumes lot of resources. When one needs value of 3, consider using MULTI_FIFOX for such use case. Ingored when using MUX implemetation.
USE_MUX_IMPL	boolean	False	If set to true and TX_ITEMS = 1, this component will be implemented as simple multiplexer and logic emulating shakedown. This implementation does not provide buffering and does not break existing logic loops between SRC and DST readies.
DEVICE	string	“AGILEX”

Ports

Port	Type	Mode	Description
=====	CLOCK AND RESET	=====	=====
CLK	std_logic	in
RESET	std_logic	in
=====	INPUT MVB INTERFACE	=====	=====
RX_DATA	std_logic_vector(RX_ITEMS*ITEM_WIDTH-1 downto 0)	in
RX_VLD	std_logic_vector(RX_ITEMS-1 downto 0)	in
RX_SRC_RDY	std_logic	in
RX_DST_RDY	std_logic	out
=====	OUTPUT MULTI MVB INTERFACE	=====	=====
TX_DATA	std_logic_vector(TX_ITEMS*ITEM_WIDTH-1 downto 0)	out	Transmit data (one item per MVB)
TX_VLD	std_logic_vector(TX_ITEMS-1 downto 0)	out	Item valid, can be interpreted as SRC_RDY
TX_NEXT	std_logic_vector(TX_ITEMS-1 downto 0)	in	Next item request, can be interpreted as DST_RDY