Merge pull request #59 from muhammadhamza15/main

Simulation Models Updates

models_internal/verilog/LATCH.v

@@ -0,0 +1,17 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// LATCH simulation model
+// Positive level-sensitive latch
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module LATCH (
+  input D, // Data Input
+  input G,
+  output Q // Data Output
+);
+
+endmodule
+`endcelldefine

models_internal/verilog/LATCHN.v

@@ -0,0 +1,17 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// LATCHN simulation model
+// Negative level-sensitive latch
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module LATCHN (
+  input D, // Data Input
+  input G,
+  output Q // Data Output
+);
+
+endmodule
+`endcelldefine

models_internal/verilog/LATCHNR.v

@@ -0,0 +1,18 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// LATCHNR simulation model
+// Negative level-sensitive latch with active-high asyncronous reset
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module LATCHNR (
+  input D, // Data Input
+  input G,
+  input R, // Active-high asyncronous reset
+  output Q // Data Output
+);
+
+endmodule
+`endcelldefine

models_internal/verilog/LATCHNS.v

@@ -0,0 +1,18 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// LATCHNS simulation model
+// Negative level-sensitive latch with active-high asyncronous set
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module LATCHNS (
+  input D, // Data Input
+  input G, // Active-high asyncronous set
+  input R, // Active-high asyncronous reset
+  output Q // Data Output
+);
+
+endmodule
+`endcelldefine

models_internal/verilog/LATCHR.v

@@ -0,0 +1,18 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// LATCHR simulation model
+// Positive level-sensitive latch with active-high asyncronous reset
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module LATCHR (
+  input D, // Data Input
+  input G,
+  input R, // Active-high asyncronous reset
+  output Q // Data Output
+);
+
+endmodule
+`endcelldefine

models_internal/verilog/LATCHS.v

@@ -0,0 +1,18 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// LATCHS simulation model
+// Positive level-sensitive latch with active-high asyncronous set
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module LATCHS (
+  input D, // Data Input
+  input G, // Active-high asyncronous set
+  input R, // Active-high asyncronous reset
+  output Q // Data Output
+);
+
+endmodule
+`endcelldefine

models_internal/verilog/MIPI_TX.v

@@ -0,0 +1,126 @@
+`timescale 1ns/1ps
+`celldefine
+//
+// MIPI_TX simulation model
+// MIPI Transmitter
+//
+// Copyright (c) 2023 Rapid Silicon, Inc.  All rights reserved.
+//
+
+module MIPI_TX #(
+  parameter WIDTH = 4, // Width of input data to serializer (3-10)
+  parameter EN_ODLY = "FALSE", // True or False
+  parameter LANE_MODE = "Master", // Master or Slave
+  parameter DELAY = 0 // Fixed TAP delay value (0-63)
+) (
+  input RST, // Active-low, asynchronous reset
+  input RX_CLK, // MIPI RX_IO clock input, PLL_CLK
+  input PLL_LOCK, // PLL lock input
+  input CLK_IN, // Fabric core clock input
+  input [WIDTH-1:0] HS_TX_DATA, // Parallel Data input bus from fabric
+  input HS_TXD_VALID, // Load word input from Fabric
+  input HS_EN, // EN HS Data Transmission (From Fabric)
+  input TX_LP_DP, // LP TX Data positive from the Fabric
+  input TX_LP_DN, // LP TX Data negative from the Fabric
+  input LP_EN, // EN LP Data Transmission (From Fabric). Active high signal. This is a common signal between MIPI RX/TX interface.
+  input TX_ODT_EN, // EN Termination
+  input DLY_LOAD, // Delay load input, from Fabric
+  input DLY_ADJ, // Delay adjust input, from Fabric
+  input DLY_INCDEC, // Delay increment / decrement input, from Fabric
+  output TX_OE, // IBUF OE signal for MIPI O_BUF
+  output TX_DP, // Serial Data output to O_BUF
+  output TX_DN, // Serial Data output to O_BUF
+  input CHANNEL_BOND_SYNC_IN, // Channel bond sync input
+  output CHANNEL_BOND_SYNC_OUT // Channel bond sync output
+);
+
+
+  wire o_serdes_dout;
+  wire o_delay_dout;
+
+  O_SERDES # (
+    .DATA_RATE("DDR"),
+    .WIDTH(WIDTH)
+  )
+  O_SERDES_inst (
+    .D(HS_TX_DATA),
+    .RST(RST),
+    .DATA_VALID(HS_TXD_VALID),
+    .CLK_IN(CLK_IN),
+    .OE_IN(),
+    .OE_OUT(),
+    .Q(o_serdes_dout),
+    .CHANNEL_BOND_SYNC_IN(CHANNEL_BOND_SYNC_IN),
+    .CHANNEL_BOND_SYNC_OUT(CHANNEL_BOND_SYNC_OUT),
+    .PLL_LOCK(PLL_LOCK),
+    .PLL_CLK(RX_CLK)
+  );
+
+O_DELAY # (
+  .DELAY(DELAY)
+)
+O_DELAY_inst (
+  .I(tx_dp),
+  .DLY_LOAD(DLY_LOAD),
+  .DLY_ADJ(DLY_ADJ),
+  .DLY_INCDEC(DLY_INCDEC),
+  .DLY_TAP_VALUE(),
+  .CLK_IN(CLK_IN),
+  .O(o_delay_dout)
+);
+  reg tx_dp;
+  reg tx_dn;
+  assign TX_OE = LP_EN | HS_EN;
+
+  always @(*) 
+  begin
+    if(HS_EN && TX_OE)
+    begin
+      tx_dp = o_serdes_dout;
+      tx_dn = ~tx_dp;
+    end
+    else if (LP_EN && TX_OE) 
+    begin
+      tx_dp = TX_LP_DP;
+      tx_dn = TX_LP_DN;
+    end
+  end
+
+  assign TX_DP = (EN_ODLY=="FALSE")? tx_dp:o_delay_dout;
+  assign TX_DN = (EN_ODLY=="FALSE")? tx_dn:~o_delay_dout;
+
+  // assign TX_DP = tx_dp;
+  // assign TX_DN = tx_dn;
+
+  always@(*)
+  begin
+    if(LP_EN && HS_EN)
+      $fatal(1,"\nERROR: MIPI TX instance %m LP_EN and HS_EN can't be hight at same time");
+  end initial begin
+
+    if ((WIDTH < 3) || (WIDTH > 10)) begin
+       $fatal(1,"MIPI_TX instance %m WIDTH set to incorrect value, %d.  Values must be between 3 and 10.", WIDTH);
+    end
+    case(EN_ODLY)
+      "TRUE" ,
+      "FALSE": begin end
+      default: begin
+        $fatal(1,"\nError: MIPI_TX instance %m has parameter EN_ODLY set to %s.  Valid values are TRUE, FALSE\n", EN_ODLY);
+      end
+    endcase
+    case(LANE_MODE)
+      "Master" ,
+      "Slave": begin end
+      default: begin
+        $fatal(1,"\nError: MIPI_TX instance %m has parameter LANE_MODE set to %s.  Valid values are Master, Slave\n", LANE_MODE);
+      end
+    endcase
+
+    if ((DELAY < 0) || (DELAY > 63)) begin
+       $fatal(1,"MIPI_TX instance %m DELAY set to incorrect value, %d.  Values must be between 0 and 63.", DELAY);
+    end
+
+  end
+
+endmodule
+`endcelldefine

models_internal/verilog/inc/MIPI_TX.inc.v

@@ -0,0 +1,64 @@
+
+
+  wire o_serdes_dout;
+  wire o_delay_dout;
+
+  O_SERDES # (
+    .DATA_RATE("DDR"),
+    .WIDTH(WIDTH)
+  )
+  O_SERDES_inst (
+    .D(HS_TX_DATA),
+    .RST(RST),
+    .DATA_VALID(HS_TXD_VALID),
+    .CLK_IN(CLK_IN),
+    .OE_IN(),
+    .OE_OUT(),
+    .Q(o_serdes_dout),
+    .CHANNEL_BOND_SYNC_IN(CHANNEL_BOND_SYNC_IN),
+    .CHANNEL_BOND_SYNC_OUT(CHANNEL_BOND_SYNC_OUT),
+    .PLL_LOCK(PLL_LOCK),
+    .PLL_CLK(RX_CLK)
+  );
+
+O_DELAY # (
+  .DELAY(DELAY)
+)
+O_DELAY_inst (
+  .I(tx_dp),
+  .DLY_LOAD(DLY_LOAD),
+  .DLY_ADJ(DLY_ADJ),
+  .DLY_INCDEC(DLY_INCDEC),
+  .DLY_TAP_VALUE(),
+  .CLK_IN(CLK_IN),
+  .O(o_delay_dout)
+);
+  reg tx_dp;
+  reg tx_dn;
+  assign TX_OE = LP_EN | HS_EN;
+
+  always @(*) 
+  begin
+    if(HS_EN && TX_OE)
+    begin
+      tx_dp = o_serdes_dout;
+      tx_dn = ~tx_dp;
+    end
+    else if (LP_EN && TX_OE) 
+    begin
+      tx_dp = TX_LP_DP;
+      tx_dn = TX_LP_DN;
+    end
+  end
+
+  assign TX_DP = (EN_ODLY=="FALSE")? tx_dp:o_delay_dout;
+  assign TX_DN = (EN_ODLY=="FALSE")? tx_dn:~o_delay_dout;
+
+  // assign TX_DP = tx_dp;
+  // assign TX_DN = tx_dn;
+
+  always@(*)
+  begin
+    if(LP_EN && HS_EN)
+      $fatal(1,"\nERROR: MIPI TX instance %m LP_EN and HS_EN can't be hight at same time");
+  end

models_internal/verilog/tb/MIPI_TX_tb.v

@@ -0,0 +1,93 @@
+`timescale 1ns/1ps
+module MIPI_TX_tb;
+
+  // Parameters
+  localparam  WIDTH = 4;
+  localparam  EN_ODLY = "FALSE";
+  localparam  LANE_MODE = "Master";
+  localparam  DELAY = 0;
+
+  //Ports
+  reg  RST;
+  reg  RX_CLK;
+  reg  PLL_LOCK;
+  reg  CLK_IN;
+  reg [WIDTH-1:0] HS_TX_DATA;
+  reg  HS_TXD_VALID;
+  reg  HS_EN;
+  reg  TX_LP_DP;
+  reg  TX_LP_DN;
+  reg  LP_EN;
+  reg  TX_ODT_EN;
+  reg  DLY_LOAD;
+  reg  DLY_ADJ;
+  reg  DLY_INCDEC;
+  wire  TX_OE;
+  wire  TX_DP;
+  wire  TX_DN;
+  reg  CHANNEL_BOND_SYNC_IN;
+  wire  CHANNEL_BOND_SYNC_OUT;
+
+  MIPI_TX # (
+    .WIDTH(WIDTH),
+    .EN_ODLY(EN_ODLY),
+    .LANE_MODE(LANE_MODE),
+    .DELAY(DELAY)
+  )
+  MIPI_TX_inst (
+    .RST(RST),
+    .RX_CLK(RX_CLK),
+    .PLL_LOCK(PLL_LOCK),
+    .CLK_IN(CLK_IN),
+    .HS_TX_DATA(HS_TX_DATA),
+    .HS_TXD_VALID(HS_TXD_VALID),
+    .HS_EN(HS_EN),
+    .TX_LP_DP(TX_LP_DP),
+    .TX_LP_DN(TX_LP_DN),
+    .LP_EN(LP_EN),
+    .TX_ODT_EN(TX_ODT_EN),
+    .DLY_LOAD(DLY_LOAD),
+    .DLY_ADJ(DLY_ADJ),
+    .DLY_INCDEC(DLY_INCDEC),
+    .TX_OE(TX_OE),
+    .TX_DP(TX_DP),
+    .TX_DN(TX_DN),
+    .CHANNEL_BOND_SYNC_IN(CHANNEL_BOND_SYNC_IN),
+    .CHANNEL_BOND_SYNC_OUT(CHANNEL_BOND_SYNC_OUT)
+  );
+
+  always #0.2  RX_CLK = ! RX_CLK ; // 2.5 GHz
+  always #0.8  CLK_IN = ! CLK_IN ;
+
+  initial 
+  begin
+    CLK_IN=0;
+		RX_CLK=1;
+		PLL_LOCK=0;
+		RST=0;
+		HS_EN=1;
+		LP_EN=0;
+		CHANNEL_BOND_SYNC_IN=0;
+		HS_TXD_VALID=1;
+		HS_TX_DATA=0;
+		@(negedge CLK_IN);
+		RST=1;
+		CHANNEL_BOND_SYNC_IN=1;
+		PLL_LOCK=1;
+		repeat(260)@(posedge RX_CLK);
+		HS_TX_DATA=4'b0101;
+		@(negedge CLK_IN);
+		HS_TX_DATA=$urandom();
+		@(negedge CLK_IN);
+		HS_TX_DATA=$urandom();
+		#1000;
+		$finish;
+
+  end
+
+  initial 
+  begin
+    $dumpfile("waves.vcd");
+    $dumpvars;
+	end
+endmodule