AXIS_ASFIFOX
+-
+
- +ENTITY AXIS_ASFIFOX IS +
- Generics
+ +
+PortsGeneric
Type
Default
Description
TDATA_WIDTH
natural
512
Width of AXI-Stream data signal in bits.
TUSER_WIDTH
natural
64
Width of AXI-Stream user signal in bits.
FIFO_ITEMS
natural
512
FIFO depth in number of data words, must be power of two! +Minimum value is 2.
RAM_TYPE
string
“BRAM”
Select memory implementation. Options: +“LUT” - effective for shallow FIFO (approx. ITEMS <= 64), +“BRAM” - effective for deep FIFO (approx. ITEMS > 64).
FWFT_MODE
boolean
True
First Word Fall Through mode. If FWFT_MODE=True, valid data will be +ready at the ASFIFOX output without TX_AXIS_TREADY requests.
OUTPUT_REG
boolean
True
Enabled output registers allow better timing for a few flip-flops.
AFULL_OFFSET
natural
FIFO_ITEMS/2
Sets the maximum number of remaining free data words in the ASFIFOX +that triggers the RX_FIFO_AFULL signal.
AEMPTY_OFFSET
natural
FIFO_ITEMS/2
Sets the maximum number of data words stored in the ASFIFOX that +triggers the TX_FIFO_AEMPTY signal.
DEVICE
string
“AGILEX”
Target device: AGILEX, STRATIX10, ULTRASCALE,…
+ +
+Port
Type
Mode
Description
=====
RX AXI-Stream interface (RX_CLK)
=====
=====
RX_CLK
std_logic
in
+ RX_RESET
std_logic
in
+ RX_AXIS_TDATA
std_logic_vector(TDATA_WIDTH-1 downto 0)
in
+ RX_AXIS_TUSER
std_logic_vector(TUSER_WIDTH-1 downto 0)
in
+ RX_AXIS_TKEEP
std_logic_vector(TDATA_WIDTH/8-1 downto 0)
in
+ RX_AXIS_TLAST
std_logic
in
+ RX_AXIS_TVALID
std_logic
in
+ RX_AXIS_TREADY
std_logic
out
+ RX_FIFO_AFULL
std_logic
out
+ RX_FIFO_STATUS
std_logic_vector(log2(FIFO_ITEMS) downto 0)
out
+ =====
TX AXI-Stream interface (TX_CLK)
=====
=====
TX_CLK
std_logic
in
+ TX_RESET
std_logic
in
+ TX_AXIS_TDATA
std_logic_vector(TDATA_WIDTH-1 downto 0)
out
+ TX_AXIS_TUSER
std_logic_vector(TUSER_WIDTH-1 downto 0)
out
+ TX_AXIS_TKEEP
std_logic_vector(TDATA_WIDTH/8-1 downto 0)
out
+ TX_AXIS_TLAST
std_logic
out
+ TX_AXIS_TVALID
std_logic
out
+ TX_AXIS_TREADY
std_logic
in
+ TX_FIFO_AEMPTY
std_logic
out
+ TX_FIFO_STATUS
std_logic_vector(log2(FIFO_ITEMS) downto 0)
out
+