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ftdi_245fifo_top.v
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//--------------------------------------------------------------------------------------------------------
// Module : ftdi_245fifo_top
// Type : synthesizable, IP's top
// Standard: Verilog 2001 (IEEE1364-2001)
// Function: FTDI USB chip's 245fifo mode controller
// support FT232H, FT2232H, FT600, FT601. (and maybe FT245 (untested))
// to realize USB communication
//--------------------------------------------------------------------------------------------------------
module ftdi_245fifo_top #(
parameter TX_EW = 2 , // TX data stream width, 0=8bit, 1=16bit, 2=32bit, 3=64bit, 4=128bit ...
parameter TX_EA = 10, // TX FIFO depth = 2^TX_EA
parameter RX_EW = 2 , // RX data stream width, 0=8bit, 1=16bit, 2=32bit, 3=64bit, 4=128bit ...
parameter RX_EA = 10, // RX FIFO depth = 2^RX_EA
parameter CHIP_TYPE = "FTx232H", // can be "FTx232H", "FT600", "FT601"
parameter SIMULATION = 0 // 0:for normal use 1:enable assert for simulation
) (
// asynchronous reset, active low
rstn_async,
// user send interface (FPGA -> USB -> PC), AXI-stream slave.
tx_clk, // User-specified clock for send interface
tx_tready,
tx_tvalid,
tx_tdata,
tx_tkeep,
tx_tlast,
// user recv interface (PC -> USB -> FPGA), AXI-stream master.
rx_clk, // User-specified clock for recv interface
rx_tready,
rx_tvalid,
rx_tdata,
rx_tkeep,
rx_tlast,
// FTDI 245FIFO interface, connect these signals to FTDI USB chip
ftdi_clk,
ftdi_rxf_n,
ftdi_txe_n,
ftdi_oe_n,
ftdi_rd_n,
ftdi_wr_n,
ftdi_data,
ftdi_be // only FT600&FT601 have BE signal, ignore it when the chip don't have this signal
);
localparam CHIP_EW = (CHIP_TYPE=="FT601") ? 2 : (CHIP_TYPE=="FT600") ? 1 : 0;
localparam CHIP_DRIVE_AT_NEGEDGE = (CHIP_TYPE=="FT601") ? 0 : (CHIP_TYPE=="FT600") ? 0 : 0;
//-----------------------------------------------------------------------------------------------------------------------------
// in/out signals
//-----------------------------------------------------------------------------------------------------------------------------
input wire rstn_async;
input wire tx_clk;
output wire tx_tready;
input wire tx_tvalid;
input wire [(8<<TX_EW)-1:0] tx_tdata;
input wire [(1<<TX_EW)-1:0] tx_tkeep;
input wire tx_tlast;
input wire rx_clk;
input wire rx_tready;
output wire rx_tvalid;
output wire [(8<<RX_EW)-1:0] rx_tdata;
output wire [(1<<RX_EW)-1:0] rx_tkeep;
output wire rx_tlast;
input wire ftdi_clk;
input wire ftdi_rxf_n;
input wire ftdi_txe_n;
output wire ftdi_oe_n;
output wire ftdi_rd_n;
output wire ftdi_wr_n;
inout [(8<<CHIP_EW)-1:0] ftdi_data;
inout [(1<<CHIP_EW)-1:0] ftdi_be;
//-----------------------------------------------------------------------------------------------------------------------------
// tri-state driver for inout pins
//-----------------------------------------------------------------------------------------------------------------------------
wire ftdi_master_oe;
wire [(8<<CHIP_EW)-1:0] ftdi_data_out;
wire [(1<<CHIP_EW)-1:0] ftdi_be_out;
assign ftdi_data = ftdi_master_oe ? ftdi_data_out : {(8<<CHIP_EW){1'bZ}}; // tri-state driver
assign ftdi_be = ftdi_master_oe ? ftdi_be_out : {(1<<CHIP_EW){1'bZ}}; // tri-state driver
//-----------------------------------------------------------------------------------------------------------------------------
// generate reset
//-----------------------------------------------------------------------------------------------------------------------------
wire rstn_ftdi;
wire rstn_tx;
wire rstn_rx;
resetn_sync u_resetn_sync_usb (rstn_async, ftdi_clk, rstn_ftdi);
resetn_sync u_resetn_sync_tx (rstn_async, tx_clk , rstn_tx );
resetn_sync u_resetn_sync_rx (rstn_async, rx_clk , rstn_rx );
//-----------------------------------------------------------------------------------------------------------------------------
// internal signals
//-----------------------------------------------------------------------------------------------------------------------------
localparam TX_FIFO_EW = (TX_EW > CHIP_EW) ? TX_EW : CHIP_EW;
localparam RX_FIFO_EW = (RX_EW > CHIP_EW) ? RX_EW : CHIP_EW;
wire tx_a_tready;
wire tx_a_tvalid;
wire [(8<<TX_EW)-1:0] tx_a_tdata;
wire [(1<<TX_EW)-1:0] tx_a_tkeep;
wire tx_a_tlast;
wire tx_b_tready;
wire tx_b_tvalid;
wire [(8<<TX_EW)-1:0] tx_b_tdata;
wire [(1<<TX_EW)-1:0] tx_b_tkeep;
wire tx_b_tlast;
wire tx_c_tready;
wire tx_c_tvalid;
wire [(8<<TX_FIFO_EW)-1:0] tx_c_tdata;
wire [(1<<TX_FIFO_EW)-1:0] tx_c_tkeep;
wire tx_d_tready;
wire tx_d_tvalid;
wire [(8<<TX_FIFO_EW)-1:0] tx_d_tdata;
wire [(1<<TX_FIFO_EW)-1:0] tx_d_tkeep;
wire tx_e_tready;
wire tx_e_tvalid;
wire [(8<<TX_FIFO_EW)-1:0] tx_e_tdata;
wire [(1<<TX_FIFO_EW)-1:0] tx_e_tkeep;
wire tx_f_tready;
wire tx_f_tvalid;
wire [(8<<CHIP_EW)-1:0] tx_f_tdata;
wire [(1<<CHIP_EW)-1:0] tx_f_tkeep;
wire tx_g_tready;
wire tx_g_tvalid;
wire [(8<<CHIP_EW)-1:0] tx_g_tdata;
wire [(1<<CHIP_EW)-1:0] tx_g_tkeep;
wire tx_h_tready;
wire tx_h_tvalid;
wire [(8<<CHIP_EW)-1:0] tx_h_tdata;
wire [(1<<CHIP_EW)-1:0] tx_h_tkeep;
wire rx_a_almost_full;
wire rx_a_tvalid;
wire [(8<<CHIP_EW)-1:0] rx_a_tdata;
wire [(1<<CHIP_EW)-1:0] rx_a_tkeep;
wire rx_a_tlast;
wire rx_b_tready;
wire rx_b_tvalid;
wire [(8<<CHIP_EW)-1:0] rx_b_tdata;
wire [(1<<CHIP_EW)-1:0] rx_b_tkeep;
wire rx_b_tlast;
wire rx_c_tready;
wire rx_c_tvalid;
wire [(8<<CHIP_EW)-1:0] rx_c_tdata;
wire [(1<<CHIP_EW)-1:0] rx_c_tkeep;
wire rx_c_tlast;
wire rx_d_tready;
wire rx_d_tvalid;
wire [(8<<RX_FIFO_EW)-1:0] rx_d_tdata;
wire [(1<<RX_FIFO_EW)-1:0] rx_d_tkeep;
wire rx_d_tlast;
wire rx_e_tready;
wire rx_e_tvalid;
wire [(8<<RX_FIFO_EW)-1:0] rx_e_tdata;
wire [(1<<RX_FIFO_EW)-1:0] rx_e_tkeep;
wire rx_e_tlast;
wire rx_f_tready;
wire rx_f_tvalid;
wire [(8<<RX_EW)-1:0] rx_f_tdata;
wire [(1<<RX_EW)-1:0] rx_f_tkeep;
wire rx_f_tlast;
//-----------------------------------------------------------------------------------------------------------------------------
// submodules
//-----------------------------------------------------------------------------------------------------------------------------
fifo2 # (
.DW ( 1 + (1<<TX_EW) + (8<<TX_EW) )
) u_tx_fifo2_1 (
.rstn ( rstn_tx ),
.clk ( tx_clk ),
.i_rdy ( tx_tready ),
.i_en ( tx_tvalid ),
.i_data ( {tx_tlast, tx_tkeep, tx_tdata} ),
.o_rdy ( tx_a_tready ),
.o_en ( tx_a_tvalid ),
.o_data ( {tx_a_tlast, tx_a_tkeep, tx_a_tdata} )
);
axi_stream_packing #(
.EW ( TX_EW ),
.SUBMIT_IMMEDIATE ( TX_EW >= TX_FIFO_EW )
) u_tx_packing (
.rstn ( rstn_tx ),
.clk ( tx_clk ),
.i_tready ( tx_a_tready ),
.i_tvalid ( tx_a_tvalid ),
.i_tdata ( tx_a_tdata ),
.i_tkeep ( tx_a_tkeep ),
.i_tlast ( tx_a_tlast ),
.o_tready ( tx_b_tready ),
.o_tvalid ( tx_b_tvalid ),
.o_tdata ( tx_b_tdata ),
.o_tkeep ( tx_b_tkeep ),
.o_tlast ( tx_b_tlast )
);
axi_stream_resizing #(
.IEW ( TX_EW ),
.OEW ( TX_FIFO_EW )
) u_tx_upsizing (
.rstn ( rstn_tx ),
.clk ( tx_clk ),
.i_tready ( tx_b_tready ),
.i_tvalid ( tx_b_tvalid ),
.i_tdata ( tx_b_tdata ),
.i_tkeep ( tx_b_tkeep ),
.i_tlast ( tx_b_tlast ),
.o_tready ( tx_c_tready ),
.o_tvalid ( tx_c_tvalid ),
.o_tdata ( tx_c_tdata ),
.o_tkeep ( tx_c_tkeep ),
.o_tlast ( )
);
fifo_async #(
.DW ( (1<<TX_FIFO_EW) + (8<<TX_FIFO_EW) ),
.EA ( TX_EA )
) u_tx_fifo_async (
.i_rstn ( rstn_tx ),
.i_clk ( tx_clk ),
.i_tready ( tx_c_tready ),
.i_tvalid ( tx_c_tvalid ),
.i_tdata ( {tx_c_tkeep, tx_c_tdata} ),
.o_rstn ( rstn_ftdi ),
.o_clk ( ftdi_clk ),
.o_tready ( tx_d_tready ),
.o_tvalid ( tx_d_tvalid ),
.o_tdata ( {tx_d_tkeep, tx_d_tdata} )
);
fifo2 # (
.DW ( (1<<TX_FIFO_EW) + (8<<TX_FIFO_EW) )
) u_tx_fifo2_2 (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_rdy ( tx_d_tready ),
.i_en ( tx_d_tvalid ),
.i_data ( {tx_d_tkeep, tx_d_tdata} ),
.o_rdy ( tx_e_tready ),
.o_en ( tx_e_tvalid ),
.o_data ( {tx_e_tkeep, tx_e_tdata} )
);
axi_stream_resizing #(
.IEW ( TX_FIFO_EW ),
.OEW ( CHIP_EW )
) u_tx_downsizing (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_tready ( tx_e_tready ),
.i_tvalid ( tx_e_tvalid ),
.i_tdata ( tx_e_tdata ),
.i_tkeep ( tx_e_tkeep ),
.i_tlast ( 1'b0 ),
.o_tready ( tx_f_tready ),
.o_tvalid ( tx_f_tvalid ),
.o_tdata ( tx_f_tdata ),
.o_tkeep ( tx_f_tkeep ),
.o_tlast ( )
);
fifo_delay_submit #(
.DW ( (1<<CHIP_EW) + (8<<CHIP_EW) )
) u_tx_fifo_delay_submit (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_rdy ( tx_f_tready ),
.i_en ( tx_f_tvalid ),
.i_data ( {tx_f_tkeep, tx_f_tdata} ),
.o_rdy ( tx_g_tready ),
.o_en ( tx_g_tvalid ),
.o_data ( {tx_g_tkeep, tx_g_tdata} )
);
fifo2 # (
.DW ( (1<<CHIP_EW) + (8<<CHIP_EW) )
) u_tx_fifo2_3 (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_rdy ( tx_g_tready ),
.i_en ( tx_g_tvalid ),
.i_data ( {tx_g_tkeep, tx_g_tdata} ),
.o_rdy ( tx_h_tready ),
.o_en ( tx_h_tvalid ),
.o_data ( {tx_h_tkeep, tx_h_tdata} )
);
ftdi_245fifo_fsm #(
.CHIP_EW ( CHIP_EW ),
.CHIP_DRIVE_AT_NEGEDGE ( CHIP_DRIVE_AT_NEGEDGE )
) u_ftdi_245fifo_fsm (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.tx_tready ( tx_h_tready ),
.tx_tvalid ( tx_h_tvalid ),
.tx_tdata ( tx_h_tdata ),
.tx_tkeep ( tx_h_tkeep ),
.rx_almost_full ( rx_a_almost_full ),
.rx_tvalid ( rx_a_tvalid ),
.rx_tdata ( rx_a_tdata ),
.rx_tkeep ( rx_a_tkeep ),
.rx_tlast ( rx_a_tlast ),
.ftdi_rxf_n ( ftdi_rxf_n ),
.ftdi_txe_n ( ftdi_txe_n ),
.ftdi_oe_n ( ftdi_oe_n ),
.ftdi_rd_n ( ftdi_rd_n ),
.ftdi_wr_n ( ftdi_wr_n ),
.ftdi_master_oe ( ftdi_master_oe ),
.ftdi_data_out ( ftdi_data_out ),
.ftdi_be_out ( ftdi_be_out ),
.ftdi_data_in ( ftdi_data ),
.ftdi_be_in ( ftdi_be )
);
fifo4 # (
.DW ( 1 + (1<<CHIP_EW) + (8<<CHIP_EW) )
) u_rx_fifo4 (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_almost_full ( rx_a_almost_full ),
.i_rdy ( ),
.i_en ( rx_a_tvalid ),
.i_data ( {rx_a_tlast, rx_a_tkeep, rx_a_tdata} ),
.o_rdy ( rx_b_tready ),
.o_en ( rx_b_tvalid ),
.o_data ( {rx_b_tlast, rx_b_tkeep, rx_b_tdata} )
);
axi_stream_packing #(
.EW ( CHIP_EW )
) u_rx_packing (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_tready ( rx_b_tready ),
.i_tvalid ( rx_b_tvalid ),
.i_tdata ( rx_b_tdata ),
.i_tkeep ( rx_b_tkeep ),
.i_tlast ( rx_b_tlast ),
.o_tready ( rx_c_tready ),
.o_tvalid ( rx_c_tvalid ),
.o_tdata ( rx_c_tdata ),
.o_tkeep ( rx_c_tkeep ),
.o_tlast ( rx_c_tlast )
);
axi_stream_resizing #(
.IEW ( CHIP_EW ),
.OEW ( RX_FIFO_EW )
) u_rx_upsizing (
.rstn ( rstn_ftdi ),
.clk ( ftdi_clk ),
.i_tready ( rx_c_tready ),
.i_tvalid ( rx_c_tvalid ),
.i_tdata ( rx_c_tdata ),
.i_tkeep ( rx_c_tkeep ),
.i_tlast ( rx_c_tlast ),
.o_tready ( rx_d_tready ),
.o_tvalid ( rx_d_tvalid ),
.o_tdata ( rx_d_tdata ),
.o_tkeep ( rx_d_tkeep ),
.o_tlast ( rx_d_tlast )
);
fifo_async #(
.DW ( 1 + (1<<RX_FIFO_EW) + (8<<RX_FIFO_EW) ),
.EA ( RX_EA )
) u_rx_fifo_async (
.i_rstn ( rstn_ftdi ),
.i_clk ( ftdi_clk ),
.i_tready ( rx_d_tready ),
.i_tvalid ( rx_d_tvalid ),
.i_tdata ( {rx_d_tlast, rx_d_tkeep, rx_d_tdata} ),
.o_rstn ( rstn_rx ),
.o_clk ( rx_clk ),
.o_tready ( rx_e_tready ),
.o_tvalid ( rx_e_tvalid ),
.o_tdata ( {rx_e_tlast, rx_e_tkeep, rx_e_tdata} )
);
axi_stream_resizing #(
.IEW ( RX_FIFO_EW ),
.OEW ( RX_EW )
) u_rx_downsizing (
.rstn ( rstn_rx ),
.clk ( rx_clk ),
.i_tready ( rx_e_tready ),
.i_tvalid ( rx_e_tvalid ),
.i_tdata ( rx_e_tdata ),
.i_tkeep ( rx_e_tkeep ),
.i_tlast ( rx_e_tlast ),
.o_tready ( rx_f_tready ),
.o_tvalid ( rx_f_tvalid ),
.o_tdata ( rx_f_tdata ),
.o_tkeep ( rx_f_tkeep ),
.o_tlast ( rx_f_tlast )
);
fifo2 #(
.DW ( 1 + (1<<RX_EW) + (8<<RX_EW) )
) u_rx_fifo2 (
.rstn ( rstn_rx ),
.clk ( rx_clk ),
.i_rdy ( rx_f_tready ),
.i_en ( rx_f_tvalid ),
.i_data ( {rx_f_tlast, rx_f_tkeep, rx_f_tdata} ),
.o_rdy ( rx_tready ),
.o_en ( rx_tvalid ),
.o_data ( {rx_tlast, rx_tkeep, rx_tdata} )
);
//-----------------------------------------------------------------------------------------------------------------------------
// simulation asserts
//-----------------------------------------------------------------------------------------------------------------------------
generate if (SIMULATION) begin
axi_stream_assert #(
.NAME ( "axis_tx_in" ),
.BW ( 1<<TX_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 0 )
) u_axis_assert_tx_in (
.clk ( tx_clk ),
.tready ( tx_tready ),
.tvalid ( tx_tvalid ),
.tdata ( tx_tdata ),
.tkeep ( tx_tkeep ),
.tlast ( tx_tlast )
);
axi_stream_assert #(
.NAME ( "axis_tx_a" ),
.BW ( 1<<TX_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 0 )
) u_axis_assert_tx_a (
.clk ( tx_clk ),
.tready ( tx_a_tready ),
.tvalid ( tx_a_tvalid ),
.tdata ( tx_a_tdata ),
.tkeep ( tx_a_tkeep ),
.tlast ( tx_a_tlast )
);
axi_stream_assert #(
.NAME ( "axis_tx_b" ),
.BW ( 1<<TX_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_b (
.clk ( tx_clk ),
.tready ( tx_b_tready ),
.tvalid ( tx_b_tvalid ),
.tdata ( tx_b_tdata ),
.tkeep ( tx_b_tkeep ),
.tlast ( tx_b_tlast )
);
axi_stream_assert #(
.NAME ( "axis_tx_c" ),
.BW ( 1<<TX_FIFO_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_c (
.clk ( tx_clk ),
.tready ( tx_c_tready ),
.tvalid ( tx_c_tvalid ),
.tdata ( tx_c_tdata ),
.tkeep ( tx_c_tkeep ),
.tlast ( 1'b1 )
);
axi_stream_assert #(
.NAME ( "axis_tx_d" ),
.BW ( 1<<TX_FIFO_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_d (
.clk ( ftdi_clk ),
.tready ( tx_d_tready ),
.tvalid ( tx_d_tvalid ),
.tdata ( tx_d_tdata ),
.tkeep ( tx_d_tkeep ),
.tlast ( 1'b1 )
);
axi_stream_assert #(
.NAME ( "axis_tx_e" ),
.BW ( 1<<TX_FIFO_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_e (
.clk ( ftdi_clk ),
.tready ( tx_e_tready ),
.tvalid ( tx_e_tvalid ),
.tdata ( tx_e_tdata ),
.tkeep ( tx_e_tkeep ),
.tlast ( 1'b1 )
);
axi_stream_assert #(
.NAME ( "axis_tx_f" ),
.BW ( 1<<CHIP_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_f (
.clk ( ftdi_clk ),
.tready ( tx_f_tready ),
.tvalid ( tx_f_tvalid ),
.tdata ( tx_f_tdata ),
.tkeep ( tx_f_tkeep ),
.tlast ( 1'b1 )
);
axi_stream_assert #(
.NAME ( "axis_tx_g" ),
.BW ( 1<<CHIP_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_g (
.clk ( ftdi_clk ),
.tready ( tx_g_tready ),
.tvalid ( tx_g_tvalid ),
.tdata ( tx_g_tdata ),
.tkeep ( tx_g_tkeep ),
.tlast ( 1'b1 )
);
axi_stream_assert #(
.NAME ( "axis_tx_h" ),
.BW ( 1<<CHIP_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 0 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_tx_h (
.clk ( ftdi_clk ),
.tready ( tx_h_tready ),
.tvalid ( tx_h_tvalid ),
.tdata ( tx_h_tdata ),
.tkeep ( tx_h_tkeep ),
.tlast ( 1'b1 )
);
axi_stream_assert #(
.NAME ( "axis_rx_b" ),
.BW ( 1<<CHIP_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 0 ),
.ASSERT_PACKED ( 0 )
) u_axis_assert_rx_b (
.clk ( ftdi_clk ),
.tready ( rx_b_tready ),
.tvalid ( rx_b_tvalid ),
.tdata ( rx_b_tdata ),
.tkeep ( rx_b_tkeep ),
.tlast ( rx_b_tlast )
);
axi_stream_assert #(
.NAME ( "axis_rx_c" ),
.BW ( 1<<CHIP_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_rx_c (
.clk ( ftdi_clk ),
.tready ( rx_c_tready ),
.tvalid ( rx_c_tvalid ),
.tdata ( rx_c_tdata ),
.tkeep ( rx_c_tkeep ),
.tlast ( rx_c_tlast )
);
axi_stream_assert #(
.NAME ( "axis_rx_d" ),
.BW ( 1<<RX_FIFO_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_rx_d (
.clk ( ftdi_clk ),
.tready ( rx_d_tready ),
.tvalid ( rx_d_tvalid ),
.tdata ( rx_d_tdata ),
.tkeep ( rx_d_tkeep ),
.tlast ( rx_d_tlast )
);
axi_stream_assert #(
.NAME ( "axis_rx_e" ),
.BW ( 1<<RX_FIFO_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_rx_e (
.clk ( rx_clk ),
.tready ( rx_e_tready ),
.tvalid ( rx_e_tvalid ),
.tdata ( rx_e_tdata ),
.tkeep ( rx_e_tkeep ),
.tlast ( rx_e_tlast )
);
axi_stream_assert #(
.NAME ( "axis_rx_f" ),
.BW ( 1<<RX_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 1 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_rx_f (
.clk ( rx_clk ),
.tready ( rx_f_tready ),
.tvalid ( rx_f_tvalid ),
.tdata ( rx_f_tdata ),
.tkeep ( rx_f_tkeep ),
.tlast ( rx_f_tlast )
);
axi_stream_assert #(
.NAME ( "axis_rx_out" ),
.BW ( 1<<RX_EW ),
.ASSERT_SLAVE_NOT_CHANGE_WHEN_HANDSHAKE_FAILED ( 0 ),
.ASSERT_PACKED ( 1 )
) u_axis_assert_rx_out (
.clk ( rx_clk ),
.tready ( rx_tready ),
.tvalid ( rx_tvalid ),
.tdata ( rx_tdata ),
.tkeep ( rx_tkeep ),
.tlast ( rx_tlast )
);
end endgenerate
endmodule