MVB Merge Items
- ENTITY MVB_MERGE_ITEMS IS
This MVB_MERGE_ITEMS component allows to merge two different MVB streams by merging items from both streams into one item. Both input MVB streams must receive the same number of items in the same order, but they can be aligned differently. TX MVB has same item aligment as RX0 MVB input.
Generics
PortsGeneric
Type
Default
Description
RX0_ITEMS
natural
4
Number of RX0 items, same for output (TX)
RX0_ITEM_WIDTH
natural
32
RX0 item width in bits
RX1_ITEMS
natural
4
Number of RX1 items
RX1_ITEM_WIDTH
natural
16
RX1 item width in bits
TX_ITEM_WIDTH
natural
RX0_ITEM_WIDTH+RX1_ITEM_WIDTH
TX item width in bits (must be sum of RX0 and RX1)
RX0_FIFO_EN
boolean
False
Enable of FIFOX on RX0 input
FIFO_DEPTH
natural
32
Depth of FIFOs on inputs
OUTPUT_REG
boolean
False
Enable output register on TX MVB
DEVICE
string
“STRATIX10”
FPGA device string (required for FIFOs)
Port
Type
Mode
Description
CLK
std_logic
in
Clock input
RESET
std_logic
in
Reset input synchronized with CLK
RX0_DATA
std_logic_vector(RX0_ITEMS*RX0_ITEM_WIDTH-1 downto 0)
in
RX0 MVB: data word with MVB items
RX0_VLD
std_logic_vector(RX0_ITEMS-1 downto 0)
in
RX0 MVB: valid of each MVB item
RX0_SRC_RDY
std_logic
in
RX0 MVB: source ready
RX0_DST_RDY
std_logic
out
RX0 MVB: destination ready
RX1_DATA
std_logic_vector(RX1_ITEMS*RX1_ITEM_WIDTH-1 downto 0)
in
RX1 MVB: data word with MVB items
RX1_VLD
std_logic_vector(RX1_ITEMS-1 downto 0)
in
RX1 MVB: valid of each MVB item
RX1_SRC_RDY
std_logic
in
RX1 MVB: source ready
RX1_DST_RDY
std_logic
out
RX1 MVB: destination ready
TX_DATA
std_logic_vector(RX0_ITEMS*TX_ITEM_WIDTH-1 downto 0)
out
TX MVB: Data word from both inputs (concatenated)
TX_DATA0
std_logic_vector(RX0_ITEMS*RX0_ITEM_WIDTH-1 downto 0)
out
TX MVB: Data word from RX0 input
TX_DATA1
std_logic_vector(RX0_ITEMS*RX1_ITEM_WIDTH-1 downto 0)
out
TX MVB: Data word from RX1 input
TX_VLD
std_logic_vector(RX0_ITEMS-1 downto 0)
out
TX MVB: valid of each MVB item
TX_SRC_RDY
std_logic
out
TX MVB: source ready
TX_DST_RDY
std_logic
in
TX MVB: destination ready