//+FHDR------------------------------------------------------------------------
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//+FHDR------------------------------------------------------------------------
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//Copyright (c) 2013 Latin Group American Integhrated Circuit, Inc. All rights reserved
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//Copyright (c) 2013 Latin Group American Integhrated Circuit, Inc. All rights reserved
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//GLADIC Open Source RTL
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//GLADIC Open Source RTL
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//FILE NAME :
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//FILE NAME :
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//DEPARTMENT : IC Design / Verification
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//DEPARTMENT : IC Design / Verification
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//AUTHOR : Felipe Fernandes da Costa
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//AUTHOR : Felipe Fernandes da Costa
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//AUTHOR’S EMAIL :
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//AUTHOR’S EMAIL :
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//RELEASE HISTORY
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//RELEASE HISTORY
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//VERSION DATE AUTHOR DESCRIPTION
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//VERSION DATE AUTHOR DESCRIPTION
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//1.0 YYYY-MM-DD name
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//1.0 YYYY-MM-DD name
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//KEYWORDS : General file searching keywords, leave blank if none.
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//KEYWORDS : General file searching keywords, leave blank if none.
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//PURPOSE : ECSS_E_ST_50_12C_31_july_2008
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//PURPOSE : ECSS_E_ST_50_12C_31_july_2008
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//PARAMETERS
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//PARAMETERS
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//PARAM NAME RANGE : DESCRIPTION : DEFAULT : UNITS
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//PARAM NAME RANGE : DESCRIPTION : DEFAULT : UNITS
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//e.g.DATA_WIDTH [32,16] : width of the DATA : 32:
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//e.g.DATA_WIDTH [32,16] : width of the DATA : 32:
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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//REUSE ISSUES
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//REUSE ISSUES
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//Reset Strategy :
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//Reset Strategy :
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//Clock Domains :
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//Clock Domains :
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//Critical Timing :
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//Critical Timing :
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//Test Features :
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//Test Features :
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//Asynchronous I/F :
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//Asynchronous I/F :
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//Scan Methodology :
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//Scan Methodology :
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//Instantiations :
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//Instantiations :
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//Synthesizable (y/n) :
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//Synthesizable (y/n) :
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//Other :
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//Other :
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//-FHDR------------------------------------------------------------------------
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//-FHDR------------------------------------------------------------------------
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`timescale 1ns/1ns
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`timescale 1ns/1ns
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module TX_SPW (
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module TX_SPW (
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input pclk_tx,
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input pclk_tx,
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//
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//
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input [8:0] data_tx_i,
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input [8:0] data_tx_i,
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input txwrite_tx,
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input txwrite_tx,
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//
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//
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input [7:0] timecode_tx_i,
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input [7:0] timecode_tx_i,
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input tickin_tx,
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input tickin_tx,
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//
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//
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input enable_tx,
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input enable_tx,
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input send_null_tx,
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input send_null_tx,
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input send_fct_tx,
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input send_fct_tx,
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|
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//
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//
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input gotfct_tx,
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input gotfct_tx,
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input send_fct_now,
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input send_fct_now,
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//
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//
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output reg tx_dout,
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output reg tx_dout,
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output reg tx_sout,
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output reg tx_sout,
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//
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//
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output reg ready_tx_data,
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output reg ready_tx_data,
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output ready_tx_timecode
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output reg ready_tx_timecode
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);
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);
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localparam [2:0] tx_spw_start = 3'b000,
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localparam [2:0] tx_spw_start = 3'b000,
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tx_spw_null = 3'b001,
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tx_spw_null = 3'b001,
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tx_spw_null_fct = 3'b010,
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tx_spw_null_fct = 3'b010,
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tx_spw_full = 3'b100;
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tx_spw_full = 3'b100;
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localparam [5:0] NULL = 6'b000001,
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localparam [5:0] NULL = 6'b000001,
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FCT = 6'b000010,
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FCT = 6'b000010,
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EOP = 6'b000100,
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EOP = 6'b000100,
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EEP = 6'b001000,
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EEP = 6'b001000,
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DATA = 6'b010000,
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DATA = 6'b010000,
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TIMEC = 6'b100000;
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TIMEC = 6'b100000;
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reg [2:0] state_tx;
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reg [2:0] state_tx;
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reg [2:0] next_state_tx;
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reg [2:0] next_state_tx;
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reg [7:0] null_s;
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reg [7:0] null_s;
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reg [3:0] fct_s;
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reg [3:0] fct_s;
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reg [3:0] eop_s;
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reg [3:0] eop_s;
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reg [3:0] eep_s;
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reg [3:0] eep_s;
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reg [13:0] timecode_s;
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reg [13:0] timecode_s;
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reg [5:0] last_type;
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reg [5:0] last_type;
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reg [8:0] txdata_flagctrl_tx_last;
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reg [8:0] txdata_flagctrl_tx_last;
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reg [7:0] last_timein_control_flag_tx;
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reg [7:0] last_timein_control_flag_tx;
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reg first_time;
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reg first_time;
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reg hold_null;
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reg hold_null;
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reg hold_fct;
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reg hold_fct;
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reg hold_data;
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reg hold_data;
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reg hold_time_code;
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reg hold_time_code;
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reg enable_null;
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reg enable_null;
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reg enable_fct;
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reg enable_fct;
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reg enable_n_char;
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reg enable_n_char;
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reg enable_time_code;
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reg enable_time_code;
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reg [2:0] fct_send;
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reg [2:0] fct_send;
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reg [2:0] fct_send_last;
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reg [2:0] fct_send_last;
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reg [2:0] fct_flag;
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reg [2:0] fct_flag;
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reg [5:0] fct_counter;
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reg [5:0] fct_counter;
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reg [5:0] fct_counter_last;
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reg [5:0] fct_counter_last;
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reg [5:0] fct_counter_receive;
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reg [5:0] fct_counter_receive;
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reg last_tx_dout;
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reg last_tx_dout;
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reg last_tx_sout;
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reg last_tx_sout;
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reg [3:0] global_counter_transfer;
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reg [3:0] global_counter_transfer;
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assign ready_tx_timecode = (enable_time_code & global_counter_transfer == 14)?1'b1:1'b0;
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/*
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/*
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assign ready_tx_timecode = (enable_time_code & global_counter_transfer == 13)?1'b1:1'b0;
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assign ready_tx_data = (enable_n_char & global_counter_transfer == 4'd9 & !data_tx_i[8])?1'b1:
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assign ready_tx_data = (enable_n_char & global_counter_transfer == 4'd9 & !data_tx_i[8])?1'b1:
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(enable_n_char & global_counter_transfer == 4'd3 & data_tx_i[8])?1'b1:1'b0;
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(enable_n_char & global_counter_transfer == 4'd3 & data_tx_i[8])?1'b1:1'b0;
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*/
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*/
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always@(*)
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always@(*)
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begin
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begin
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tx_dout = 1'b0;
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tx_dout = 1'b0;
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if(!enable_tx)
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if(!enable_tx)
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begin
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begin
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tx_dout = 1'b0;
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tx_dout = 1'b0;
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end
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end
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else if( enable_null & first_time & global_counter_transfer == 4'd0)
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else if( enable_null & first_time & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = null_s[7];
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tx_dout = null_s[7];
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end
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end
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else if( enable_null & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
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else if( enable_null & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(null_s[6]^null_s[0]^null_s[1]);
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tx_dout = !(null_s[6]^null_s[0]^null_s[1]);
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end
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end
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else if( enable_null & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
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else if( enable_null & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(null_s[6]^fct_s[0]^fct_s[1]);
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tx_dout = !(null_s[6]^fct_s[0]^fct_s[1]);
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end
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end
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else if( enable_null & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
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else if( enable_null & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(null_s[6]^eop_s[0]^eop_s[1]);
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tx_dout = !(null_s[6]^eop_s[0]^eop_s[1]);
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end
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end
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else if( enable_null & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
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else if( enable_null & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(null_s[6]^eep_s[0]^eep_s[1]);
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tx_dout = !(null_s[6]^eep_s[0]^eep_s[1]);
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end
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end
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else if( enable_null & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
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else if( enable_null & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(null_s[6]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
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tx_dout = !(null_s[6]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
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end
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end
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else if( enable_null & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
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else if( enable_null & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(null_s[6]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
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tx_dout = !(null_s[6]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd1)
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else if( enable_null & !first_time & global_counter_transfer == 4'd1)
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begin
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begin
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tx_dout = null_s[6];
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tx_dout = null_s[6];
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd2)
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else if( enable_null & !first_time & global_counter_transfer == 4'd2)
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begin
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begin
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tx_dout = null_s[5];
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tx_dout = null_s[5];
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd3)
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else if( enable_null & !first_time & global_counter_transfer == 4'd3)
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begin
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begin
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tx_dout = null_s[4];
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tx_dout = null_s[4];
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd4)
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else if( enable_null & !first_time & global_counter_transfer == 4'd4)
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begin
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begin
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tx_dout = null_s[3];
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tx_dout = null_s[3];
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd5)
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else if( enable_null & !first_time & global_counter_transfer == 4'd5)
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begin
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begin
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tx_dout = null_s[2];
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tx_dout = null_s[2];
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd6)
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else if( enable_null & !first_time & global_counter_transfer == 4'd6)
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begin
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begin
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tx_dout = null_s[1];
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tx_dout = null_s[1];
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end
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end
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else if( enable_null & !first_time & global_counter_transfer == 4'd7)
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else if( enable_null & !first_time & global_counter_transfer == 4'd7)
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begin
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begin
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tx_dout = null_s[0];
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tx_dout = null_s[0];
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end
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end
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else if( enable_fct & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
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else if( enable_fct & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(fct_s[2]^null_s[0]^null_s[1]);
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tx_dout = !(fct_s[2]^null_s[0]^null_s[1]);
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end
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end
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else if( enable_fct & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
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else if( enable_fct & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(fct_s[2]^fct_s[0]^fct_s[1]);
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tx_dout = !(fct_s[2]^fct_s[0]^fct_s[1]);
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end
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end
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else if( enable_fct & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
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else if( enable_fct & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(fct_s[2]^eop_s[0]^eop_s[1]);
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tx_dout = !(fct_s[2]^eop_s[0]^eop_s[1]);
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end
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end
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else if( enable_fct & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
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else if( enable_fct & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(fct_s[2]^eep_s[0]^eep_s[1]);
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tx_dout = !(fct_s[2]^eep_s[0]^eep_s[1]);
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end
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end
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else if ( enable_fct & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
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else if ( enable_fct & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(fct_s[2]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
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tx_dout = !(fct_s[2]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
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end
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end
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else if( enable_fct & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
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else if( enable_fct & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(fct_s[2]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
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tx_dout = !(fct_s[2]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
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end
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end
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else if( enable_fct & !first_time & global_counter_transfer == 4'd1)
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else if( enable_fct & !first_time & global_counter_transfer == 4'd1)
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begin
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begin
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tx_dout = fct_s[2];
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tx_dout = fct_s[2];
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end
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end
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else if( enable_fct & !first_time & global_counter_transfer == 4'd2)
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else if( enable_fct & !first_time & global_counter_transfer == 4'd2)
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begin
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begin
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tx_dout = fct_s[1];
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tx_dout = fct_s[1];
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end
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end
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else if( enable_fct & !first_time & global_counter_transfer == 4'd3)
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else if( enable_fct & !first_time & global_counter_transfer == 4'd3)
|
begin
|
begin
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tx_dout = fct_s[0];
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tx_dout = fct_s[0];
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end
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end
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else if( enable_time_code & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
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else if( enable_time_code & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
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begin
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begin
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tx_dout = !(timecode_s[12]^null_s[0]^null_s[1]);
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tx_dout = !(timecode_s[12]^null_s[0]^null_s[1]);
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end
|
end
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else if( enable_time_code & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
else if( enable_time_code & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
begin
|
begin
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tx_dout = !(timecode_s[12]^fct_s[0]^fct_s[1]);
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tx_dout = !(timecode_s[12]^fct_s[0]^fct_s[1]);
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end
|
end
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else if ( enable_time_code & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
else if ( enable_time_code & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
begin
|
begin
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tx_dout = !(timecode_s[12]^eop_s[0]^eop_s[1]);
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tx_dout = !(timecode_s[12]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if( enable_time_code & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
else if( enable_time_code & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^eep_s[0]^eep_s[1]);
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tx_dout = !(timecode_s[12]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if( enable_time_code & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
else if( enable_time_code & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
tx_dout = !(timecode_s[12]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
end
|
end
|
else if( enable_time_code & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
else if( enable_time_code & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
tx_dout = !(timecode_s[12]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd1)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd1)
|
begin
|
begin
|
tx_dout = timecode_s[12];
|
tx_dout = timecode_s[12];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd2)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd2)
|
begin
|
begin
|
tx_dout = timecode_s[11];
|
tx_dout = timecode_s[11];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd3)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd3)
|
begin
|
begin
|
tx_dout = timecode_s[10];
|
tx_dout = timecode_s[10];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd4)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd4)
|
begin
|
begin
|
tx_dout = timecode_s[9];
|
tx_dout = timecode_s[9];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd5)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd5)
|
begin
|
begin
|
tx_dout = timecode_s[8];
|
tx_dout = timecode_s[8];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd6)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd6)
|
begin
|
begin
|
tx_dout = timecode_s[7];
|
tx_dout = timecode_s[0];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd7)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd7)
|
begin
|
begin
|
tx_dout = timecode_s[6];
|
tx_dout = timecode_s[1];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd8)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd8)
|
begin
|
begin
|
tx_dout = timecode_s[5];
|
tx_dout = timecode_s[2];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd9)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd9)
|
begin
|
begin
|
tx_dout = timecode_s[4];
|
tx_dout = timecode_s[3];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd10)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd10)
|
begin
|
begin
|
tx_dout = timecode_s[3];
|
tx_dout = timecode_s[4];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd11)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd11)
|
begin
|
begin
|
tx_dout = timecode_s[2];
|
tx_dout = timecode_s[5];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd12)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd12)
|
begin
|
begin
|
tx_dout = timecode_s[1];
|
tx_dout = timecode_s[6];
|
end
|
end
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd13)
|
else if( enable_time_code & !first_time & global_counter_transfer == 4'd13)
|
begin
|
begin
|
tx_dout = timecode_s[0];
|
tx_dout = timecode_s[7];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(data_tx_i[8]^null_s[0]^null_s[1]);
|
tx_dout = !(data_tx_i[8]^null_s[0]^null_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(data_tx_i[8]^fct_s[0]^fct_s[1]);
|
tx_dout = !(data_tx_i[8]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(data_tx_i[8]^eop_s[0]^eop_s[1]);
|
tx_dout = !(data_tx_i[8]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(data_tx_i[8]^eep_s[0]^eep_s[1]);
|
tx_dout = !(data_tx_i[8]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(data_tx_i[8]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
tx_dout = !(data_tx_i[8]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(data_tx_i[8]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
tx_dout = !(data_tx_i[8]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[3]^null_s[0]^null_s[1]);
|
tx_dout = !(eop_s[3]^null_s[0]^null_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[3]^fct_s[0]^fct_s[1]);
|
tx_dout = !(eop_s[3]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[3]^eop_s[0]^eop_s[1]);
|
tx_dout = !(eop_s[3]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[3]^eep_s[0]^eep_s[1]);
|
tx_dout = !(eop_s[3]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[3]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
tx_dout = !(eop_s[3]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[3]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
tx_dout = !(eop_s[3]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & global_counter_transfer == 4'd1)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & global_counter_transfer == 4'd1)
|
begin
|
begin
|
tx_dout = eop_s[2];
|
tx_dout = eop_s[2];
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & global_counter_transfer == 4'd2)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & global_counter_transfer == 4'd2)
|
begin
|
begin
|
tx_dout = eop_s[1];
|
tx_dout = eop_s[1];
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & global_counter_transfer == 4'd3)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b00 & !first_time & global_counter_transfer == 4'd3)
|
begin
|
begin
|
tx_dout = eop_s[0];
|
tx_dout = eop_s[0];
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == NULL & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[3]^null_s[0]^null_s[1]);
|
tx_dout = !(eep_s[3]^null_s[0]^null_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == FCT & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[3]^fct_s[0]^fct_s[1]);
|
tx_dout = !(eep_s[3]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == EOP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[3]^eop_s[0]^eop_s[1]);
|
tx_dout = !(eep_s[3]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == EEP & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[3]^eep_s[0]^eep_s[1]);
|
tx_dout = !(eep_s[3]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == DATA & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[3]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
tx_dout = !(eep_s[3]^txdata_flagctrl_tx_last[0]^txdata_flagctrl_tx_last[1]^txdata_flagctrl_tx_last[2]^txdata_flagctrl_tx_last[3]^ txdata_flagctrl_tx_last[4]^txdata_flagctrl_tx_last[5]^txdata_flagctrl_tx_last[6]^txdata_flagctrl_tx_last[7]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
else if( enable_n_char & !data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & last_type == TIMEC & global_counter_transfer == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[3]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
tx_dout = !(eep_s[3]^last_timein_control_flag_tx[7]^last_timein_control_flag_tx[6]^last_timein_control_flag_tx[5]^last_timein_control_flag_tx[4]^last_timein_control_flag_tx[3]^last_timein_control_flag_tx[2]^last_timein_control_flag_tx[1]^last_timein_control_flag_tx[0]);
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd1)
|
else if( enable_n_char & !data_tx_i[8] & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd1)
|
begin
|
begin
|
tx_dout = data_tx_i[8];
|
tx_dout = data_tx_i[8];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd2)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd2)
|
begin
|
begin
|
tx_dout = data_tx_i[0];
|
tx_dout = data_tx_i[0];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd3)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd3)
|
begin
|
begin
|
tx_dout = data_tx_i[1];
|
tx_dout = data_tx_i[1];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd4)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd4)
|
begin
|
begin
|
tx_dout = data_tx_i[2];
|
tx_dout = data_tx_i[2];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd5)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd5)
|
begin
|
begin
|
tx_dout = data_tx_i[3];
|
tx_dout = data_tx_i[3];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd6)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd6)
|
begin
|
begin
|
tx_dout = data_tx_i[4];
|
tx_dout = data_tx_i[4];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd7)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd7)
|
begin
|
begin
|
tx_dout = data_tx_i[5];
|
tx_dout = data_tx_i[5];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd8)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd8)
|
begin
|
begin
|
tx_dout = data_tx_i[6];
|
tx_dout = data_tx_i[6];
|
end
|
end
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd9)
|
else if( enable_n_char & !data_tx_i[8] & !first_time & global_counter_transfer == 4'd9)
|
begin
|
begin
|
tx_dout = data_tx_i[7];
|
tx_dout = data_tx_i[7];
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & global_counter_transfer == 4'd1)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & global_counter_transfer == 4'd1)
|
begin
|
begin
|
tx_dout = eep_s[2];
|
tx_dout = eep_s[2];
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & global_counter_transfer == 4'd2)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & global_counter_transfer == 4'd2)
|
begin
|
begin
|
tx_dout = eep_s[1];
|
tx_dout = eep_s[1];
|
end
|
end
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & global_counter_transfer == 4'd3)
|
else if( enable_n_char & data_tx_i[8] & data_tx_i[1:0] == 2'b01 & !first_time & global_counter_transfer == 4'd3)
|
begin
|
begin
|
tx_dout = eep_s[0];
|
tx_dout = eep_s[0];
|
end
|
end
|
end
|
end
|
|
|
//strobe
|
//strobe
|
always@(*)
|
always@(*)
|
begin
|
begin
|
tx_sout = 1'b0;
|
tx_sout = 1'b0;
|
|
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
tx_sout = 1'b0;
|
tx_sout = 1'b0;
|
end
|
end
|
else if((enable_null | enable_fct | enable_n_char) && tx_dout == last_tx_dout)
|
else if((enable_null | enable_fct | enable_n_char | enable_time_code) && tx_dout == last_tx_dout)
|
begin
|
begin
|
tx_sout = !last_tx_sout;
|
tx_sout = !last_tx_sout;
|
end
|
end
|
else if((enable_null | enable_fct | enable_n_char) && tx_dout != last_tx_dout)
|
else if((enable_null | enable_fct | enable_n_char | enable_time_code) && tx_dout != last_tx_dout)
|
begin
|
begin
|
tx_sout = last_tx_sout;
|
tx_sout = last_tx_sout;
|
end
|
end
|
|
|
end
|
end
|
|
|
//slots open in another side
|
//slots open in another side
|
always@(posedge gotfct_tx or negedge enable_tx)
|
always@(posedge gotfct_tx or negedge enable_tx)
|
begin
|
begin
|
|
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
fct_counter <= {6{1'b0}};
|
fct_counter <= {6{1'b0}};
|
end
|
end
|
else
|
else
|
begin
|
begin
|
if(fct_counter == 6'd56)
|
if(fct_counter == 6'd56)
|
fct_counter <= 6'd8;
|
fct_counter <= 6'd8;
|
else
|
else
|
fct_counter <= fct_counter + 6'd8;
|
fct_counter <= fct_counter + 6'd8;
|
end
|
end
|
end
|
end
|
|
|
|
|
//slots open in our side
|
//slots open in our side
|
always@(posedge send_fct_now or negedge enable_tx)
|
always@(posedge send_fct_now or negedge enable_tx)
|
begin
|
begin
|
|
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
fct_send <= {3{1'b1}};
|
fct_send <= {3{1'b1}};
|
end
|
end
|
else
|
else
|
begin
|
begin
|
|
|
if(fct_send == 3'd7)
|
if(fct_send == 3'd7)
|
begin
|
begin
|
fct_send <= 3'd1;
|
fct_send <= 3'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_send <= fct_send + 3'd1;
|
fct_send <= fct_send + 3'd1;
|
end
|
end
|
end
|
end
|
|
|
end
|
end
|
|
|
|
|
always@(*)
|
always@(*)
|
begin
|
begin
|
|
|
next_state_tx = state_tx;
|
next_state_tx = state_tx;
|
|
|
enable_null = 1'b0;
|
enable_null = 1'b0;
|
enable_fct = 1'b0;
|
enable_fct = 1'b0;
|
enable_n_char = 1'b0;
|
enable_n_char = 1'b0;
|
enable_time_code = 1'b0;
|
enable_time_code = 1'b0;
|
|
|
case(state_tx)
|
case(state_tx)
|
tx_spw_start:
|
tx_spw_start:
|
begin
|
begin
|
if(send_null_tx && enable_tx)
|
if(send_null_tx && enable_tx)
|
begin
|
begin
|
//if(!hold_null)
|
//if(!hold_null)
|
next_state_tx = tx_spw_null;
|
next_state_tx = tx_spw_null;
|
|
|
//enable_null = 1'b1;
|
//enable_null = 1'b1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_start;
|
next_state_tx = tx_spw_start;
|
end
|
end
|
end
|
end
|
tx_spw_null:
|
tx_spw_null:
|
begin
|
begin
|
enable_null = 1'b1;
|
enable_null = 1'b1;
|
|
|
if(!hold_null)
|
if(!hold_null)
|
begin
|
begin
|
if(send_null_tx && send_fct_tx && enable_tx)
|
if(send_null_tx && send_fct_tx && enable_tx)
|
next_state_tx = tx_spw_null_fct;
|
next_state_tx = tx_spw_null_fct;
|
else
|
else
|
next_state_tx = tx_spw_null;
|
next_state_tx = tx_spw_null;
|
end
|
end
|
|
|
end
|
end
|
tx_spw_null_fct:
|
tx_spw_null_fct:
|
begin
|
begin
|
|
|
enable_null = 1'b1;
|
enable_null = 1'b1;
|
|
|
if(send_fct_tx && fct_flag > 0 && !hold_null)
|
if(send_fct_tx && fct_flag > 0 && !hold_null)
|
begin
|
begin
|
next_state_tx = tx_spw_null_fct;
|
next_state_tx = tx_spw_null_fct;
|
enable_null = 1'b0;
|
enable_null = 1'b0;
|
enable_fct = 1'b1;
|
enable_fct = 1'b1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
enable_fct = 1'b0;
|
enable_fct = 1'b0;
|
if(send_fct_tx && fct_counter > 6'd0)
|
if(send_fct_tx && fct_counter > 6'd0)
|
begin
|
begin
|
//if(global_counter_transfer == 4'd7)
|
//if(global_counter_transfer == 4'd7)
|
next_state_tx = tx_spw_full;
|
next_state_tx = tx_spw_full;
|
end
|
end
|
|
|
end
|
end
|
end
|
end
|
tx_spw_full:
|
tx_spw_full:
|
begin
|
begin
|
|
|
enable_null = 1'b0;
|
enable_null = 1'b0;
|
enable_fct = 1'b0;
|
enable_fct = 1'b0;
|
enable_n_char = 1'b0;
|
enable_n_char = 1'b0;
|
enable_time_code = 1'b0;
|
enable_time_code = 1'b0;
|
|
|
/*
|
/*
|
hold_null <= 1'b0;
|
hold_null <= 1'b0;
|
hold_fct <= 1'b0;
|
hold_fct <= 1'b0;
|
hold_data <= 1'b0;
|
hold_data <= 1'b0;
|
hold_time_code <= 1'b0;
|
hold_time_code <= 1'b0;
|
*/
|
*/
|
|
|
if(tickin_tx && !hold_null && !hold_fct && !hold_data)
|
if(tickin_tx && !hold_null && !hold_fct && !hold_data)
|
begin
|
begin
|
enable_time_code = 1'b1;
|
enable_time_code = 1'b1;
|
end
|
end
|
else if(fct_flag > 3'd0 && !hold_null && !hold_time_code && !hold_data)
|
else if(fct_flag > 3'd0 && !hold_null && !hold_time_code && !hold_data)
|
begin
|
begin
|
enable_fct = 1'b1;
|
enable_fct = 1'b1;
|
end
|
end
|
else if(txwrite_tx && fct_counter_receive > 6'd0 && !hold_null && !hold_time_code && !hold_fct )
|
else if(txwrite_tx && fct_counter_receive > 6'd0 && !hold_null && !hold_time_code && !hold_fct )
|
begin
|
begin
|
enable_n_char = 1'b1;
|
enable_n_char = 1'b1;
|
end
|
end
|
else if(!hold_time_code && !hold_fct && !hold_data)
|
else if(!hold_time_code && !hold_fct && !hold_data)
|
begin
|
begin
|
enable_null = 1'b1;
|
enable_null = 1'b1;
|
end
|
end
|
|
|
end
|
end
|
endcase
|
endcase
|
|
|
end
|
end
|
|
|
always@(posedge pclk_tx)
|
always@(posedge pclk_tx)
|
begin
|
begin
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
null_s <= 8'h74;
|
null_s <= 8'h74;
|
fct_s <= 4'h4;
|
fct_s <= 4'h4;
|
eop_s <= 4'h5;
|
eop_s <= 4'h5;
|
eep_s <= 4'h6;
|
eep_s <= 4'h6;
|
timecode_s <= 14'h1e00;
|
timecode_s <= 14'b01110000000000;
|
|
|
fct_flag <= 3'd0;
|
fct_flag <= 3'd0;
|
fct_send_last <= 3'd0;
|
fct_send_last <= 3'd0;
|
|
|
first_time <= 1'b1;
|
first_time <= 1'b1;
|
ready_tx_data <= 1'b0;
|
ready_tx_data <= 1'b0;
|
|
ready_tx_timecode <= 1'b0;
|
|
|
hold_null <= 1'b0;
|
hold_null <= 1'b0;
|
hold_fct <= 1'b0;
|
hold_fct <= 1'b0;
|
hold_data <= 1'b0;
|
hold_data <= 1'b0;
|
hold_time_code <= 1'b0;
|
hold_time_code <= 1'b0;
|
|
|
last_type <= NULL;
|
last_type <= NULL;
|
|
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
txdata_flagctrl_tx_last <= 9'd0;
|
txdata_flagctrl_tx_last <= 9'd0;
|
last_timein_control_flag_tx <= 8'd0;
|
last_timein_control_flag_tx <= 8'd0;
|
|
|
fct_counter_receive <= 6'd0;
|
fct_counter_receive <= 6'd0;
|
fct_counter_last <= 6'd0;
|
fct_counter_last <= 6'd0;
|
|
|
last_tx_dout <= 1'b0;
|
last_tx_dout <= 1'b0;
|
last_tx_sout <= 1'b0;
|
last_tx_sout <= 1'b0;
|
state_tx <= tx_spw_start;
|
state_tx <= tx_spw_start;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
|
|
state_tx <= next_state_tx;
|
state_tx <= next_state_tx;
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
if(enable_null)
|
if(enable_null)
|
begin
|
begin
|
|
|
ready_tx_data <= 1'b0;
|
ready_tx_data <= 1'b0;
|
|
ready_tx_timecode <= 1'b0;
|
|
|
//
|
//
|
if(fct_send_last != fct_send)
|
if(fct_send_last != fct_send)
|
begin
|
begin
|
if(fct_send == 3'd1 && fct_send_last == 3'd7)
|
if(fct_send == 3'd1 && fct_send_last == 3'd7)
|
begin
|
begin
|
fct_flag <= fct_flag + 3'd1;
|
fct_flag <= fct_flag + 3'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_flag <= fct_flag + (fct_send - fct_send_last);
|
fct_flag <= fct_flag + (fct_send - fct_send_last);
|
end
|
end
|
|
|
fct_send_last <= fct_send;
|
fct_send_last <= fct_send;
|
end
|
end
|
|
|
//
|
//
|
if(fct_counter_last != fct_counter)
|
if(fct_counter_last != fct_counter)
|
begin
|
begin
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + 6'd8;
|
fct_counter_receive <= fct_counter_receive + 6'd8;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last);
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last);
|
end
|
end
|
|
|
fct_counter_last <= fct_counter;
|
fct_counter_last <= fct_counter;
|
end
|
end
|
|
|
if(first_time)
|
if(first_time)
|
begin
|
begin
|
first_time <= 1'b0;
|
first_time <= 1'b0;
|
hold_null <= 1'b1;
|
hold_null <= 1'b1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
else if(global_counter_transfer != 4'd7)
|
else if(global_counter_transfer != 4'd7)
|
begin
|
begin
|
hold_null <= 1'b1;
|
hold_null <= 1'b1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
hold_null <= 1'b0;
|
hold_null <= 1'b0;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
end
|
end
|
end
|
end
|
else if(enable_fct)
|
else if(enable_fct)
|
begin
|
begin
|
|
|
ready_tx_data <= 1'b0;
|
ready_tx_data <= 1'b0;
|
|
ready_tx_timecode <= 1'b0;
|
|
|
//
|
//
|
if(fct_counter_last != fct_counter)
|
if(fct_counter_last != fct_counter)
|
begin
|
begin
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + 6'd8;
|
fct_counter_receive <= fct_counter_receive + 6'd8;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last);
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last);
|
end
|
end
|
|
|
fct_counter_last <= fct_counter;
|
fct_counter_last <= fct_counter;
|
end
|
end
|
|
|
if(global_counter_transfer != 4'd3)
|
if(global_counter_transfer != 4'd3)
|
begin
|
begin
|
hold_fct <= 1'b1;
|
hold_fct <= 1'b1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
hold_fct <= 1'b0;
|
hold_fct <= 1'b0;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
fct_flag <= fct_flag - 3'd1;
|
fct_flag <= fct_flag - 3'd1;
|
end
|
end
|
end
|
end
|
else if(enable_time_code)
|
else if(enable_time_code)
|
begin
|
begin
|
|
|
ready_tx_data <= 1'b0;
|
ready_tx_data <= 1'b0;
|
|
|
|
if(global_counter_transfer == 4'd13)
|
|
begin
|
|
ready_tx_timecode <= 1'b1;
|
|
end
|
|
|
//
|
//
|
if(fct_counter_last != fct_counter)
|
if(fct_counter_last != fct_counter)
|
begin
|
begin
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + 6'd8;
|
fct_counter_receive <= fct_counter_receive + 6'd8;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last);
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last);
|
end
|
end
|
|
|
fct_counter_last <= fct_counter;
|
fct_counter_last <= fct_counter;
|
end
|
end
|
|
|
//
|
//
|
if(fct_send_last != fct_send)
|
if(fct_send_last != fct_send)
|
begin
|
begin
|
if(fct_send == 3'd1 && fct_send_last == 3'd7)
|
if(fct_send == 3'd1 && fct_send_last == 3'd7)
|
begin
|
begin
|
fct_flag <= fct_flag + 3'd1;
|
fct_flag <= fct_flag + 3'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_flag <= fct_flag + (fct_send - fct_send_last);
|
fct_flag <= fct_flag + (fct_send - fct_send_last);
|
end
|
end
|
|
|
fct_send_last <= fct_send;
|
fct_send_last <= fct_send;
|
end
|
end
|
|
|
if(global_counter_transfer < 4'd13)
|
if(global_counter_transfer < 4'd13)
|
begin
|
begin
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
last_timein_control_flag_tx <= timecode_tx_i;
|
timecode_s <= {timecode_s[13:10],2'd2,timecode_tx_i[7:0]};
|
end
|
end
|
else
|
else
|
begin
|
begin
|
|
last_timein_control_flag_tx <= timecode_tx_i;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
end
|
end
|
end
|
end
|
else if(enable_n_char)
|
else if(enable_n_char)
|
begin
|
begin
|
|
|
|
ready_tx_timecode <= 1'b0;
|
|
|
//
|
//
|
if(fct_send_last != fct_send)
|
if(fct_send_last != fct_send)
|
begin
|
begin
|
if(fct_send == 3'd1 && fct_send_last == 3'd7)
|
if(fct_send == 3'd1 && fct_send_last == 3'd7)
|
begin
|
begin
|
fct_flag <= fct_flag + 3'd1;
|
fct_flag <= fct_flag + 3'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_flag <= fct_flag + (fct_send - fct_send_last);
|
fct_flag <= fct_flag + (fct_send - fct_send_last);
|
end
|
end
|
|
|
fct_send_last <= fct_send;
|
fct_send_last <= fct_send;
|
end
|
end
|
|
|
if(!data_tx_i[8])
|
if(!data_tx_i[8])
|
begin
|
begin
|
|
|
if(global_counter_transfer == 4'd9)
|
if(global_counter_transfer == 4'd9)
|
begin
|
begin
|
ready_tx_data <= 1'b1;
|
ready_tx_data <= 1'b1;
|
end
|
end
|
|
|
if(global_counter_transfer != 4'd9)
|
if(global_counter_transfer != 4'd9)
|
begin
|
begin
|
hold_data <= 1'b1;
|
hold_data <= 1'b1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
txdata_flagctrl_tx_last <= data_tx_i;
|
txdata_flagctrl_tx_last <= data_tx_i;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
hold_data <= 1'b0;
|
hold_data <= 1'b0;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
//
|
//
|
if(fct_counter_last != fct_counter)
|
if(fct_counter_last != fct_counter)
|
begin
|
begin
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + 6'd8 - 6'd1;
|
fct_counter_receive <= fct_counter_receive + 6'd8 - 6'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last) - 6'd1;
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last) - 6'd1;
|
end
|
end
|
|
|
fct_counter_last <= fct_counter;
|
fct_counter_last <= fct_counter;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive - 6'd1;
|
fct_counter_receive <= fct_counter_receive - 6'd1;
|
end
|
end
|
end
|
end
|
|
|
end
|
end
|
else if(data_tx_i[8])
|
else if(data_tx_i[8])
|
begin
|
begin
|
|
|
if(global_counter_transfer == 4'd3)
|
if(global_counter_transfer == 4'd3)
|
begin
|
begin
|
ready_tx_data <= 1'b1;
|
ready_tx_data <= 1'b1;
|
end
|
end
|
|
|
if(global_counter_transfer != 4'd3)
|
if(global_counter_transfer != 4'd3)
|
begin
|
begin
|
hold_data <= 1'b1;
|
hold_data <= 1'b1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
txdata_flagctrl_tx_last <= data_tx_i;
|
txdata_flagctrl_tx_last <= data_tx_i;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
hold_data <= 1'b0;
|
hold_data <= 1'b0;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
//
|
//
|
if(fct_counter_last != fct_counter)
|
if(fct_counter_last != fct_counter)
|
begin
|
begin
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
if(fct_counter == 6'd8 && fct_counter_last == 6'd56)
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + 6'd8 - 6'd1;
|
fct_counter_receive <= fct_counter_receive + 6'd8 - 6'd1;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last) - 6'd1;
|
fct_counter_receive <= fct_counter_receive + (fct_counter - fct_counter_last) - 6'd1;
|
end
|
end
|
|
|
fct_counter_last <= fct_counter;
|
fct_counter_last <= fct_counter;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive - 6'd1;
|
fct_counter_receive <= fct_counter_receive - 6'd1;
|
end
|
end
|
end
|
end
|
end
|
end
|
|
|
end
|
end
|
|
|
end
|
end
|
end
|
end
|
|
|
endmodule
|
endmodule
|
|
|
