//+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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|
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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_e,
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output reg tx_dout_e,
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output reg tx_sout_e,
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output reg tx_sout_e,
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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 reg 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 [6:0] tx_spw_start = 7'b0000000,
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localparam [6:0] tx_spw_start = 7'b0000000,
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tx_spw_null = 7'b0000001,
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tx_spw_null = 7'b0000001,
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tx_spw_fct = 7'b0000010,
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tx_spw_fct = 7'b0000010,
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tx_spw_null_c = 7'b0000100,
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tx_spw_null_c = 7'b0000100,
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tx_spw_fct_c = 7'b0001000,
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tx_spw_fct_c = 7'b0001000,
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tx_spw_data_c = 7'b0010000,
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tx_spw_data_c = 7'b0010000,
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tx_spw_time_code_c = 7'b0100000;
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tx_spw_time_code_c = 7'b0100000;
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|
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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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localparam [7:0] null_s = 8'b01110100;
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localparam [7:0] null_s = 8'b01110100;
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localparam [2:0] fct_s = 3'b100;
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localparam [2:0] fct_s = 3'b100;
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localparam [3:0] eop_s = 4'b0101;
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localparam [3:0] eop_s = 4'b0101;
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localparam [3:0] eep_s = 4'b0110;
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localparam [3:0] eep_s = 4'b0110;
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localparam [13:0] timecode_ss = 14'b01110000000000;
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localparam [13:0] timecode_ss = 14'b01110000000000;
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reg [6:0] state_tx;
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reg [6:0] state_tx;
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reg [6:0] next_state_tx;
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reg [6:0] next_state_tx;
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|
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reg [2:0] state_fct_send;
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reg [2:0] state_fct_send;
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reg [2:0] next_state_fct_send;
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reg [2:0] next_state_fct_send;
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|
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reg [2:0] state_fct_receive;
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reg [2:0] state_fct_receive;
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reg [2:0] next_state_fct_receive;
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reg [2:0] next_state_fct_receive;
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reg [2:0] state_data_fifo;
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reg [2:0] next_state_data_fifo;
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reg [13:0] timecode_s;
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reg [13:0] timecode_s;
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|
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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 [8:0] tx_data_in;
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reg [8:0] tx_data_in;
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reg data_rdy_trnsp;
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reg [8:0] tx_data_took;
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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 [7:0] tx_tcode_in;
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reg [7:0] tx_tcode_in;
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reg tcode_rdy_trnsp;
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reg tcode_rdy_trnsp;
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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_flag;
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reg [2:0] fct_flag;
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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 block_increment;
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reg data_ready_took;
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reg block_decrement;
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reg block_decrement;
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reg char_sent;
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reg char_sent;
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//reg block_increment_fct_send;
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//reg block_decrement_fct_send;
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reg fct_sent;
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reg fct_sent;
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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 tx_dout;
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reg tx_dout;
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reg tx_sout;
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reg tx_sout;
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reg tx_dout_null;
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reg tx_dout_null;
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reg tx_dout_fct;
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reg tx_dout_fct;
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reg tx_dout_timecode;
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reg tx_dout_timecode;
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reg tx_dout_data;
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reg tx_dout_data;
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reg [3:0] global_counter_transfer;
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reg [3:0] global_counter_transfer;
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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 = last_tx_dout;
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tx_dout = last_tx_dout;
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case(state_tx)
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case(state_tx)
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tx_spw_start:
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tx_spw_start:
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begin
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begin
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end
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end
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tx_spw_null,tx_spw_null_c:
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tx_spw_null,tx_spw_null_c:
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begin
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begin
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if(last_type == NULL && global_counter_transfer[3:0] == 4'd0)
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if(last_type == NULL && global_counter_transfer[3:0] == 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(last_type == FCT && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == FCT && global_counter_transfer[3:0] == 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(last_type == EOP && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == EOP && global_counter_transfer[3:0] == 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(last_type == EEP && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == EEP && global_counter_transfer[3:0] == 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(last_type == DATA && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == DATA && global_counter_transfer[3:0] == 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(last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == TIMEC && global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd1)
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else if(global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd2)
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else if(global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd3)
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else if(global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd4)
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else if(global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd5)
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else if(global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd6)
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else if(global_counter_transfer[3:0] == 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(global_counter_transfer[3:0] == 4'd7)
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else if(global_counter_transfer[3:0] == 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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end
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end
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tx_spw_fct,tx_spw_fct_c:
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tx_spw_fct,tx_spw_fct_c:
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begin
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begin
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if(last_type == NULL && global_counter_transfer[3:0] == 4'd0)
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if(last_type == NULL && global_counter_transfer[3:0] == 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(last_type == FCT && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == FCT && global_counter_transfer[3:0] == 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(last_type == EOP && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == EOP && global_counter_transfer[3:0] == 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(last_type == EEP && global_counter_transfer[3:0] == 4'd0)
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else if(last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
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
|
else if (last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
else if (last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
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]);
|
end
|
end
|
else if(last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
else if(last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
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]);
|
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]);
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd1)
|
else if(global_counter_transfer[3:0] == 4'd1)
|
begin
|
begin
|
tx_dout = fct_s[2];
|
tx_dout = fct_s[2];
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd2)
|
else if(global_counter_transfer[3:0] == 4'd2)
|
begin
|
begin
|
tx_dout = fct_s[1];
|
tx_dout = fct_s[1];
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd3)
|
else if(global_counter_transfer[3:0] == 4'd3)
|
begin
|
begin
|
tx_dout = fct_s[0];
|
tx_dout = fct_s[0];
|
end
|
end
|
end
|
end
|
tx_spw_data_c:
|
tx_spw_data_c:
|
begin
|
begin
|
if(!tx_data_in[8] && last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
if(!tx_data_in[8] && last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(tx_data_in[8]^null_s[0]^null_s[1]);
|
tx_dout = !(tx_data_in[8]^null_s[0]^null_s[1]);
|
end
|
end
|
else if(!tx_data_in[8] && last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
else if(!tx_data_in[8] && last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(tx_data_in[8]^fct_s[0]^fct_s[1]);
|
tx_dout = !(tx_data_in[8]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if(!tx_data_in[8] && last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
else if(!tx_data_in[8] && last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(tx_data_in[8]^eop_s[0]^eop_s[1]);
|
tx_dout = !(tx_data_in[8]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if(!tx_data_in[8] && last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
else if(!tx_data_in[8] && last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(tx_data_in[8]^eep_s[0]^eep_s[1]);
|
tx_dout = !(tx_data_in[8]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if(!tx_data_in[8] && last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
else if(!tx_data_in[8] && last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(tx_data_in[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 = !(tx_data_in[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(!tx_data_in[8] && last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
else if(!tx_data_in[8] && last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(tx_data_in[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 = !(tx_data_in[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(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[2]^null_s[0]^null_s[1]);
|
tx_dout = !(eop_s[2]^null_s[0]^null_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[2]^fct_s[0]^fct_s[1]);
|
tx_dout = !(eop_s[2]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[2]^eop_s[0]^eop_s[1]);
|
tx_dout = !(eop_s[2]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_s[2]^eep_s[0]^eep_s[1]);
|
tx_dout = !(eop_s[2]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_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]);
|
tx_dout = !(eop_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]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eop_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]);
|
tx_dout = !(eop_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]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[2]^null_s[0]^null_s[1]);
|
tx_dout = !(eep_s[2]^null_s[0]^null_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[2]^fct_s[0]^fct_s[1]);
|
tx_dout = !(eep_s[2]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[2]^eop_s[0]^eop_s[1]);
|
tx_dout = !(eep_s[2]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_s[2]^eep_s[0]^eep_s[1]);
|
tx_dout = !(eep_s[2]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_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]);
|
tx_dout = !(eep_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]);
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(eep_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]);
|
tx_dout = !(eep_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]);
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd1)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd1)
|
begin
|
begin
|
tx_dout = tx_data_in[8];
|
tx_dout = tx_data_in[8];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd2)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd2)
|
begin
|
begin
|
tx_dout = tx_data_in[0];
|
tx_dout = tx_data_in[0];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd3)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd3)
|
begin
|
begin
|
tx_dout = tx_data_in[1];
|
tx_dout = tx_data_in[1];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd4)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd4)
|
begin
|
begin
|
tx_dout = tx_data_in[2];
|
tx_dout = tx_data_in[2];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd5)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd5)
|
begin
|
begin
|
tx_dout = tx_data_in[3];
|
tx_dout = tx_data_in[3];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd6)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd6)
|
begin
|
begin
|
tx_dout = tx_data_in[4];
|
tx_dout = tx_data_in[4];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd7)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd7)
|
begin
|
begin
|
tx_dout = tx_data_in[5];
|
tx_dout = tx_data_in[5];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd8)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd8)
|
begin
|
begin
|
tx_dout = tx_data_in[6];
|
tx_dout = tx_data_in[6];
|
end
|
end
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd9)
|
else if(!tx_data_in[8] && global_counter_transfer[3:0] == 4'd9)
|
begin
|
begin
|
tx_dout = tx_data_in[7];
|
tx_dout = tx_data_in[7];
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && global_counter_transfer[3:0] == 4'd1)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && global_counter_transfer[3:0] == 4'd1)
|
begin
|
begin
|
tx_dout = eep_s[2];
|
tx_dout = eep_s[2];
|
end
|
end
|
else if( tx_data_in[8] && tx_data_in[1:0] == 2'b01 && global_counter_transfer[3:0] == 4'd2)
|
else if( tx_data_in[8] && tx_data_in[1:0] == 2'b01 && global_counter_transfer[3:0] == 4'd2)
|
begin
|
begin
|
tx_dout = eep_s[1];
|
tx_dout = eep_s[1];
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && global_counter_transfer[3:0] == 4'd3)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b01 && global_counter_transfer[3:0] == 4'd3)
|
begin
|
begin
|
tx_dout = eep_s[0];
|
tx_dout = eep_s[0];
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && global_counter_transfer[3:0] == 4'd1)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && global_counter_transfer[3:0] == 4'd1)
|
begin
|
begin
|
tx_dout = eop_s[2];
|
tx_dout = eop_s[2];
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && global_counter_transfer[3:0] == 4'd2)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && global_counter_transfer[3:0] == 4'd2)
|
begin
|
begin
|
tx_dout = eop_s[1];
|
tx_dout = eop_s[1];
|
end
|
end
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && global_counter_transfer[3:0] == 4'd3)
|
else if(tx_data_in[8] && tx_data_in[1:0] == 2'b00 && global_counter_transfer[3:0] == 4'd3)
|
begin
|
begin
|
tx_dout = eop_s[0];
|
tx_dout = eop_s[0];
|
end
|
end
|
end
|
end
|
tx_spw_time_code_c:
|
tx_spw_time_code_c:
|
begin
|
begin
|
if(last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
if(last_type == NULL && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^null_s[0]^null_s[1]);
|
tx_dout = !(timecode_s[12]^null_s[0]^null_s[1]);
|
end
|
end
|
else if(last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
else if(last_type == FCT && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^fct_s[0]^fct_s[1]);
|
tx_dout = !(timecode_s[12]^fct_s[0]^fct_s[1]);
|
end
|
end
|
else if (last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
else if (last_type == EOP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^eop_s[0]^eop_s[1]);
|
tx_dout = !(timecode_s[12]^eop_s[0]^eop_s[1]);
|
end
|
end
|
else if( last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
else if( last_type == EEP && global_counter_transfer[3:0] == 4'd0)
|
begin
|
begin
|
tx_dout = !(timecode_s[12]^eep_s[0]^eep_s[1]);
|
tx_dout = !(timecode_s[12]^eep_s[0]^eep_s[1]);
|
end
|
end
|
else if( last_type == DATA && global_counter_transfer[3:0] == 4'd0)
|
else if( last_type == DATA && global_counter_transfer[3:0] == 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( last_type == TIMEC && global_counter_transfer[3:0] == 4'd0)
|
else if( last_type == TIMEC && global_counter_transfer[3:0] == 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( global_counter_transfer[3:0] == 4'd1)
|
else if( global_counter_transfer[3:0] == 4'd1)
|
begin
|
begin
|
tx_dout = timecode_s[12];
|
tx_dout = timecode_s[12];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd2)
|
else if( global_counter_transfer[3:0] == 4'd2)
|
begin
|
begin
|
tx_dout = timecode_s[11];
|
tx_dout = timecode_s[11];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd3)
|
else if( global_counter_transfer[3:0] == 4'd3)
|
begin
|
begin
|
tx_dout = timecode_s[10];
|
tx_dout = timecode_s[10];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd4)
|
else if( global_counter_transfer[3:0] == 4'd4)
|
begin
|
begin
|
tx_dout = timecode_s[9];
|
tx_dout = timecode_s[9];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd5)
|
else if( global_counter_transfer[3:0] == 4'd5)
|
begin
|
begin
|
tx_dout = timecode_s[8];
|
tx_dout = timecode_s[8];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd6)
|
else if( global_counter_transfer[3:0] == 4'd6)
|
begin
|
begin
|
tx_dout = timecode_s[0];
|
tx_dout = timecode_s[0];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd7)
|
else if( global_counter_transfer[3:0] == 4'd7)
|
begin
|
begin
|
tx_dout = timecode_s[1];
|
tx_dout = timecode_s[1];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd8)
|
else if( global_counter_transfer[3:0] == 4'd8)
|
begin
|
begin
|
tx_dout = timecode_s[2];
|
tx_dout = timecode_s[2];
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd9)
|
else if(global_counter_transfer[3:0] == 4'd9)
|
begin
|
begin
|
tx_dout = timecode_s[3];
|
tx_dout = timecode_s[3];
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd10)
|
else if(global_counter_transfer[3:0] == 4'd10)
|
begin
|
begin
|
tx_dout = timecode_s[4];
|
tx_dout = timecode_s[4];
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd11)
|
else if(global_counter_transfer[3:0] == 4'd11)
|
begin
|
begin
|
tx_dout = timecode_s[5];
|
tx_dout = timecode_s[5];
|
end
|
end
|
else if( global_counter_transfer[3:0] == 4'd12)
|
else if( global_counter_transfer[3:0] == 4'd12)
|
begin
|
begin
|
tx_dout = timecode_s[6];
|
tx_dout = timecode_s[6];
|
end
|
end
|
else if(global_counter_transfer[3:0] == 4'd13)
|
else if(global_counter_transfer[3:0] == 4'd13)
|
begin
|
begin
|
tx_dout = timecode_s[7];
|
tx_dout = timecode_s[7];
|
end
|
end
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
|
|
//strobe
|
//strobe
|
always@(*)
|
always@(*)
|
begin
|
begin
|
|
|
tx_sout = last_tx_sout;
|
tx_sout = last_tx_sout;
|
|
|
if(tx_dout == last_tx_dout)
|
if(tx_dout == last_tx_dout)
|
begin
|
begin
|
tx_sout = !last_tx_sout;
|
tx_sout = !last_tx_sout;
|
end
|
end
|
else if(tx_dout != last_tx_dout)
|
else if(tx_dout != last_tx_dout)
|
begin
|
begin
|
tx_sout = last_tx_sout;
|
tx_sout = last_tx_sout;
|
end
|
end
|
end
|
end
|
|
|
always@(*)
|
always@(*)
|
begin
|
begin
|
next_state_fct_send = state_fct_send;
|
next_state_fct_send = state_fct_send;
|
|
|
case(state_fct_send)
|
case(state_fct_send)
|
3'd0:
|
3'd0:
|
begin
|
begin
|
if(send_fct_now)
|
if(send_fct_now)
|
begin
|
begin
|
next_state_fct_send = 3'd1;
|
next_state_fct_send = 3'd1;
|
end
|
end
|
else if(fct_sent)
|
else if(fct_sent)
|
begin
|
begin
|
next_state_fct_send = 3'd3;
|
next_state_fct_send = 3'd3;
|
end
|
end
|
else
|
else
|
next_state_fct_send = 3'd0;
|
next_state_fct_send = 3'd0;
|
end
|
end
|
3'd1:
|
3'd1:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
begin
|
begin
|
next_state_fct_send = 3'd2;
|
next_state_fct_send = 3'd2;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_send = 3'd1;
|
next_state_fct_send = 3'd1;
|
end
|
end
|
end
|
end
|
3'd2:
|
3'd2:
|
begin
|
begin
|
if(send_fct_now)
|
if(send_fct_now)
|
begin
|
begin
|
next_state_fct_send = 3'd2;
|
next_state_fct_send = 3'd2;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_send = 3'd0;
|
next_state_fct_send = 3'd0;
|
end
|
end
|
end
|
end
|
3'd3:
|
3'd3:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
begin
|
begin
|
next_state_fct_send = 3'd4;
|
next_state_fct_send = 3'd4;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_send = 3'd3;
|
next_state_fct_send = 3'd3;
|
end
|
end
|
end
|
end
|
3'd4:
|
3'd4:
|
begin
|
begin
|
if(fct_sent)
|
if(fct_sent)
|
begin
|
begin
|
next_state_fct_send = 3'd4;
|
next_state_fct_send = 3'd4;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_send = 3'd0;
|
next_state_fct_send = 3'd0;
|
end
|
end
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
next_state_fct_send = 3'd0;
|
next_state_fct_send = 3'd0;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
|
|
always@(posedge pclk_tx or negedge enable_tx)
|
always@(posedge pclk_tx or negedge enable_tx)
|
begin
|
begin
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
fct_flag <= 3'd7;
|
fct_flag <= 3'd7;
|
state_fct_send<= 3'd0;
|
state_fct_send<= 3'd0;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
state_fct_send <= next_state_fct_send;
|
state_fct_send <= next_state_fct_send;
|
|
|
case(state_fct_send)
|
case(state_fct_send)
|
3'd0:
|
3'd0:
|
begin
|
begin
|
fct_flag <= fct_flag;
|
fct_flag <= fct_flag;
|
end
|
end
|
3'd1:
|
3'd1:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
fct_flag <= fct_flag + 3'd1;
|
fct_flag <= fct_flag + 3'd1;
|
else
|
else
|
fct_flag <= fct_flag;
|
fct_flag <= fct_flag;
|
end
|
end
|
3'd2:
|
3'd2:
|
begin
|
begin
|
fct_flag <= fct_flag;
|
fct_flag <= fct_flag;
|
end
|
end
|
3'd3:
|
3'd3:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
fct_flag <= fct_flag - 3'd1;
|
fct_flag <= fct_flag - 3'd1;
|
else
|
else
|
fct_flag <= fct_flag;
|
fct_flag <= fct_flag;
|
end
|
end
|
3'd4:
|
3'd4:
|
begin
|
begin
|
fct_flag <= fct_flag;
|
fct_flag <= fct_flag;
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
fct_flag <= fct_flag;
|
fct_flag <= fct_flag;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
end
|
end
|
|
|
|
|
always@(*)
|
always@(*)
|
begin
|
begin
|
next_state_fct_receive = state_fct_receive;
|
next_state_fct_receive = state_fct_receive;
|
|
|
case(state_fct_receive)
|
case(state_fct_receive)
|
3'd0:
|
3'd0:
|
begin
|
begin
|
if(gotfct_tx)
|
if(gotfct_tx)
|
begin
|
begin
|
next_state_fct_receive = 3'd1;
|
next_state_fct_receive = 3'd1;
|
end
|
end
|
else if(char_sent)
|
else if(char_sent)
|
begin
|
begin
|
next_state_fct_receive = 3'd3;
|
next_state_fct_receive = 3'd3;
|
end
|
end
|
else
|
else
|
next_state_fct_receive = 3'd0;
|
next_state_fct_receive = 3'd0;
|
end
|
end
|
3'd1:
|
3'd1:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
begin
|
begin
|
next_state_fct_receive = 3'd2;
|
next_state_fct_receive = 3'd2;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_receive = 3'd1;
|
next_state_fct_receive = 3'd1;
|
end
|
end
|
end
|
end
|
3'd2:
|
3'd2:
|
begin
|
begin
|
if(gotfct_tx)
|
if(gotfct_tx)
|
begin
|
begin
|
next_state_fct_receive = 3'd2;
|
next_state_fct_receive = 3'd2;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_receive = 3'd0;
|
next_state_fct_receive = 3'd0;
|
end
|
end
|
end
|
end
|
3'd3:
|
3'd3:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
begin
|
begin
|
next_state_fct_receive = 3'd4;
|
next_state_fct_receive = 3'd4;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_receive = 3'd3;
|
next_state_fct_receive = 3'd3;
|
end
|
end
|
end
|
end
|
3'd4:
|
3'd4:
|
begin
|
begin
|
if(char_sent)
|
if(char_sent)
|
begin
|
begin
|
next_state_fct_receive = 3'd4;
|
next_state_fct_receive = 3'd4;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_fct_receive = 3'd0;
|
next_state_fct_receive = 3'd0;
|
end
|
end
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
next_state_fct_receive = 3'd0;
|
next_state_fct_receive = 3'd0;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
|
|
|
|
always@(posedge pclk_tx or negedge enable_tx)
|
always@(posedge pclk_tx or negedge enable_tx)
|
begin
|
begin
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
fct_counter_receive<= 6'd0;
|
fct_counter_receive<= 6'd0;
|
state_fct_receive <= 3'd0;
|
state_fct_receive <= 3'd0;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
|
|
state_fct_receive <= next_state_fct_receive;
|
state_fct_receive <= next_state_fct_receive;
|
|
|
case(state_fct_receive)
|
case(state_fct_receive)
|
3'd0:
|
3'd0:
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive;
|
fct_counter_receive <= fct_counter_receive;
|
end
|
end
|
3'd1:
|
3'd1:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
begin
|
begin
|
if(fct_counter_receive < 6'd48)
|
if(fct_counter_receive < 6'd48)
|
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 + 6'd7;
|
fct_counter_receive <= fct_counter_receive + 6'd7;
|
end
|
end
|
end
|
end
|
else
|
else
|
fct_counter_receive <= fct_counter_receive;
|
fct_counter_receive <= fct_counter_receive;
|
end
|
end
|
3'd2:
|
3'd2:
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive;
|
fct_counter_receive <= fct_counter_receive;
|
end
|
end
|
3'd3:
|
3'd3:
|
begin
|
begin
|
if(global_counter_transfer == 4'd2)
|
if(global_counter_transfer > 4'd0 && global_counter_transfer < 4'd12)
|
|
begin
|
|
if(fct_counter_receive == 6'd0)
|
|
fct_counter_receive <= fct_counter_receive;
|
|
else
|
fct_counter_receive <= fct_counter_receive - 6'd1;
|
fct_counter_receive <= fct_counter_receive - 6'd1;
|
|
end
|
else
|
else
|
fct_counter_receive <= fct_counter_receive;
|
fct_counter_receive <= fct_counter_receive;
|
end
|
end
|
3'd4:
|
3'd4:
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive;
|
fct_counter_receive <= fct_counter_receive;
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
fct_counter_receive <= fct_counter_receive;
|
fct_counter_receive <= fct_counter_receive;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
end
|
end
|
|
|
|
|
|
always@(*)
|
|
begin
|
|
next_state_data_fifo = state_data_fifo;
|
|
|
|
case(state_data_fifo)
|
|
3'd0:
|
|
begin
|
|
if(!ready_tx_data && txwrite_tx)
|
|
begin
|
|
next_state_data_fifo = 3'd1;
|
|
end
|
|
else
|
|
next_state_data_fifo = 3'd0;
|
|
end
|
|
3'd1:
|
|
begin
|
|
next_state_data_fifo = 3'd2;
|
|
end
|
|
3'd2:
|
|
begin
|
|
|
|
if(state_tx == tx_spw_null_c && global_counter_transfer > 4'd1 && global_counter_transfer < 4'd7)
|
|
next_state_data_fifo = 3'd3;
|
|
else if(state_tx == tx_spw_data_c && global_counter_transfer > 4'd1 && global_counter_transfer < 4'd9)
|
|
next_state_data_fifo = 3'd3;
|
|
else
|
|
next_state_data_fifo = 3'd2;
|
|
end
|
|
3'd3:
|
|
begin
|
|
if(!ready_tx_data && txwrite_tx)
|
|
begin
|
|
next_state_data_fifo = 3'd3;
|
|
end
|
|
else
|
|
begin
|
|
next_state_data_fifo = 3'd0;
|
|
end
|
|
end
|
|
default:
|
|
begin
|
|
next_state_data_fifo = 3'd0;
|
|
end
|
|
endcase
|
|
end
|
|
|
|
always@(posedge pclk_tx or negedge enable_tx)
|
|
begin
|
|
if(!enable_tx)
|
|
begin
|
|
data_ready_took <= 1'b0;
|
|
state_data_fifo <= 3'd0;
|
|
tx_data_took <= 9'd0;
|
|
end
|
|
else
|
|
begin
|
|
|
|
state_data_fifo <= next_state_data_fifo;
|
|
|
|
case(state_data_fifo)
|
|
3'd0:
|
|
begin
|
|
//tx_data_took <= tx_data_took;
|
|
end
|
|
3'd1:
|
|
begin
|
|
tx_data_took <= data_tx_i;
|
|
end
|
|
3'd2:
|
|
begin
|
|
tx_data_took <= data_tx_i;
|
|
|
|
if(state_tx == tx_spw_null_c && global_counter_transfer > 4'd0 && global_counter_transfer < 4'd7)
|
|
data_ready_took <= 1'b1;
|
|
else if(state_tx == tx_spw_data_c && global_counter_transfer > 4'd0 && global_counter_transfer < 4'd9)
|
|
data_ready_took <= 1'b1;
|
|
else
|
|
data_ready_took <= 1'b0;
|
|
end
|
|
3'd3:
|
|
begin
|
|
if(!ready_tx_data && txwrite_tx)
|
|
begin
|
|
data_ready_took <= 1'b1;
|
|
end
|
|
else
|
|
begin
|
|
data_ready_took <= 1'b0;
|
|
end
|
|
end
|
|
default:
|
|
begin
|
|
end
|
|
endcase
|
|
end
|
|
end
|
|
|
always@(*)
|
always@(*)
|
begin
|
begin
|
next_state_tx = state_tx;
|
next_state_tx = state_tx;
|
|
|
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
|
next_state_tx = tx_spw_null;
|
next_state_tx = tx_spw_null;
|
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
|
if(send_null_tx && send_fct_tx && enable_tx)
|
if(send_null_tx && send_fct_tx && enable_tx)
|
begin
|
begin
|
if(global_counter_transfer == 4'd7)
|
if(global_counter_transfer == 4'd7)
|
next_state_tx = tx_spw_fct;
|
next_state_tx = tx_spw_fct;
|
|
else
|
|
next_state_tx = tx_spw_null;
|
end
|
end
|
else
|
else
|
next_state_tx = tx_spw_null;
|
next_state_tx = tx_spw_null;
|
end
|
end
|
tx_spw_fct:
|
tx_spw_fct:
|
begin
|
begin
|
if(send_fct_tx && fct_flag > 3'd0)
|
if(send_fct_tx && global_counter_transfer == 4'd3)
|
begin
|
|
next_state_tx = tx_spw_fct;
|
|
end
|
|
else
|
|
begin
|
|
if(send_fct_tx && fct_counter_receive > 6'd0)
|
|
begin
|
|
if(global_counter_transfer == 4'd7 || global_counter_transfer == 4'd3)
|
|
begin
|
begin
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
begin
|
begin
|
next_state_tx = tx_spw_time_code_c;
|
next_state_tx = tx_spw_time_code_c;
|
end
|
end
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
begin
|
begin
|
next_state_tx = tx_spw_fct_c;
|
next_state_tx = tx_spw_fct;
|
end
|
|
else if(txwrite_tx && !gotfct_tx && !gotfct_tx && !ready_tx_data && data_rdy_trnsp && fct_counter_receive > 6'd0)
|
|
begin
|
|
next_state_tx = tx_spw_data_c;
|
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
end
|
else
|
end
|
next_state_tx = tx_spw_fct;
|
end
|
end
|
tx_spw_null_c:
|
tx_spw_null_c:
|
begin
|
begin
|
if(global_counter_transfer == 4'd7)
|
if(global_counter_transfer == 4'd7)
|
begin
|
begin
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
begin
|
begin
|
next_state_tx = tx_spw_time_code_c;
|
next_state_tx = tx_spw_time_code_c;
|
end
|
end
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
begin
|
begin
|
next_state_tx = tx_spw_fct_c;
|
next_state_tx = tx_spw_fct_c;
|
end
|
end
|
else if(txwrite_tx && !gotfct_tx && !ready_tx_data && data_rdy_trnsp && fct_counter_receive > 6'd0)
|
else if(data_ready_took && !gotfct_tx && fct_counter_receive > 6'd0)
|
begin
|
begin
|
next_state_tx = tx_spw_data_c;
|
next_state_tx = tx_spw_data_c;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
tx_spw_fct_c:
|
tx_spw_fct_c:
|
begin
|
begin
|
if(global_counter_transfer == 4'd3)
|
if(global_counter_transfer == 4'd3)
|
begin
|
begin
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
begin
|
begin
|
next_state_tx = tx_spw_time_code_c;
|
next_state_tx = tx_spw_time_code_c;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_fct_c;
|
next_state_tx = tx_spw_fct_c;
|
end
|
end
|
end
|
end
|
tx_spw_data_c:
|
tx_spw_data_c:
|
begin
|
begin
|
|
|
if(!tx_data_in[8])
|
if(!tx_data_in[8])
|
begin
|
begin
|
if(global_counter_transfer == 4'd9)
|
if(global_counter_transfer == 4'd9)
|
begin
|
begin
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
begin
|
begin
|
next_state_tx = tx_spw_time_code_c;
|
next_state_tx = tx_spw_time_code_c;
|
end
|
end
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
begin
|
begin
|
next_state_tx = tx_spw_fct_c;
|
next_state_tx = tx_spw_fct_c;
|
end
|
end
|
|
else if(data_ready_took && !gotfct_tx && fct_counter_receive > 6'd0)
|
|
begin
|
|
next_state_tx = tx_spw_data_c;
|
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
else
|
else
|
next_state_tx = tx_spw_data_c;
|
next_state_tx = tx_spw_data_c;
|
end
|
end
|
else if(tx_data_in[8])
|
else if(tx_data_in[8])
|
begin
|
begin
|
if(global_counter_transfer == 4'd3)
|
if(global_counter_transfer == 4'd3)
|
begin
|
begin
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
if(tickin_tx && !ready_tx_timecode && tcode_rdy_trnsp)
|
begin
|
begin
|
next_state_tx = tx_spw_time_code_c;
|
next_state_tx = tx_spw_time_code_c;
|
end
|
end
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
else if(fct_flag > 3'd0 && !send_fct_now)
|
begin
|
begin
|
next_state_tx = tx_spw_fct_c;
|
next_state_tx = tx_spw_fct_c;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
else
|
else
|
next_state_tx = tx_spw_data_c;
|
next_state_tx = tx_spw_data_c;
|
end
|
end
|
|
|
|
|
end
|
end
|
tx_spw_time_code_c:
|
tx_spw_time_code_c:
|
begin
|
begin
|
if(global_counter_transfer == 4'd13)
|
if(global_counter_transfer == 4'd13)
|
begin
|
begin
|
if(fct_flag > 3'd0 && !send_fct_now)
|
if(fct_flag > 3'd0 && !send_fct_now)
|
begin
|
begin
|
next_state_tx = tx_spw_fct_c;
|
next_state_tx = tx_spw_fct_c;
|
end
|
end
|
else if(txwrite_tx && !gotfct_tx && !ready_tx_data && data_rdy_trnsp && fct_counter_receive > 6'd0 )
|
else if(data_ready_took && !gotfct_tx && fct_counter_receive > 6'd0 )
|
begin
|
begin
|
next_state_tx = tx_spw_data_c;
|
next_state_tx = tx_spw_data_c;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_null_c;
|
next_state_tx = tx_spw_null_c;
|
end
|
end
|
end
|
end
|
else
|
else
|
begin
|
begin
|
next_state_tx = tx_spw_time_code_c;
|
next_state_tx = tx_spw_time_code_c;
|
end
|
end
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
next_state_tx = tx_spw_start;
|
next_state_tx = tx_spw_start;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
|
|
|
|
always@(posedge pclk_tx or negedge enable_tx)
|
always@(posedge pclk_tx or negedge enable_tx)
|
begin
|
begin
|
if(!enable_tx)
|
if(!enable_tx)
|
begin
|
begin
|
|
|
timecode_s <= 14'b01110000000000;
|
timecode_s <= 14'b01110000000000;
|
|
|
ready_tx_data <= 1'b0;
|
ready_tx_data <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
ready_tx_timecode <= 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;
|
tx_data_in <= 9'd0;
|
tx_data_in <= 9'd0;
|
last_timein_control_flag_tx <= 8'd0;
|
last_timein_control_flag_tx <= 8'd0;
|
|
|
char_sent<= 1'b0;
|
char_sent<= 1'b0;
|
fct_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
|
|
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;
|
|
|
tx_dout_e <= 1'b0;
|
tx_dout_e <= 1'b0;
|
tx_sout_e <= 1'b0;
|
tx_sout_e <= 1'b0;
|
|
|
data_rdy_trnsp <= 1'b0;
|
|
|
|
tx_tcode_in <= 8'd0;
|
tx_tcode_in <= 8'd0;
|
tcode_rdy_trnsp <= 1'b0;
|
tcode_rdy_trnsp <= 1'b0;
|
|
|
end
|
end
|
else
|
else
|
begin
|
begin
|
state_tx <= next_state_tx;
|
state_tx <= next_state_tx;
|
|
|
case(state_tx)
|
case(state_tx)
|
tx_spw_start:
|
tx_spw_start:
|
begin
|
begin
|
|
global_counter_transfer <= 4'd0;
|
end
|
end
|
tx_spw_null:
|
tx_spw_null:
|
begin
|
begin
|
|
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
tx_dout_e <= last_tx_dout;
|
tx_dout_e <= last_tx_dout;
|
tx_sout_e <= last_tx_sout;
|
tx_sout_e <= last_tx_sout;
|
|
|
|
|
if(txwrite_tx && global_counter_transfer == 4'd5)
|
|
begin
|
|
tx_data_in <= data_tx_i;
|
|
data_rdy_trnsp <= 1'b1;
|
|
end
|
|
else
|
|
tx_data_in <= tx_data_in;
|
|
|
|
if(tickin_tx && global_counter_transfer == 4'd5)
|
if(tickin_tx && global_counter_transfer == 4'd5)
|
begin
|
begin
|
tx_tcode_in <= timecode_tx_i;
|
tx_tcode_in <= timecode_tx_i;
|
tcode_rdy_trnsp <= 1'b1;
|
tcode_rdy_trnsp <= 1'b1;
|
end
|
end
|
else
|
else
|
tx_tcode_in <= tx_tcode_in;
|
tx_tcode_in <= tx_tcode_in;
|
|
|
if(global_counter_transfer == 4'd3)
|
|
begin
|
|
ready_tx_timecode <= 1'b0;
|
|
ready_tx_data <= 1'b0;
|
|
end
|
|
else
|
|
begin
|
|
ready_tx_timecode <= ready_tx_timecode;
|
|
ready_tx_data <= ready_tx_data;
|
|
end
|
|
|
|
if(global_counter_transfer == 4'd7)
|
if(global_counter_transfer == 4'd7)
|
begin
|
begin
|
last_type <= NULL;
|
last_type <= NULL;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
last_type <= last_type;
|
last_type <= last_type;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
end
|
end
|
tx_spw_fct:
|
tx_spw_fct:
|
begin
|
begin
|
|
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
tx_dout_e <= last_tx_dout;
|
tx_dout_e <= last_tx_dout;
|
tx_sout_e <= last_tx_sout;
|
tx_sout_e <= last_tx_sout;
|
|
|
ready_tx_data <= ready_tx_data;
|
|
|
|
if(global_counter_transfer == 4'd3)
|
if(global_counter_transfer == 4'd3)
|
begin
|
begin
|
last_type <=FCT;
|
last_type <=FCT;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
fct_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
if(fct_flag > 3'd0)
|
if(fct_flag > 3'd0)
|
fct_sent <= 1'b1;
|
fct_sent <= 1'b1;
|
else
|
else
|
fct_sent <= fct_sent;
|
fct_sent <= fct_sent;
|
|
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
end
|
end
|
tx_spw_null_c:
|
tx_spw_null_c:
|
begin
|
begin
|
|
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
tx_dout_e <= last_tx_dout;
|
tx_dout_e <= last_tx_dout;
|
tx_sout_e <= last_tx_sout;
|
tx_sout_e <= last_tx_sout;
|
|
|
|
if(global_counter_transfer == 4'd7)
|
if(txwrite_tx && global_counter_transfer == 4'd5)
|
|
begin
|
begin
|
tx_data_in <= data_tx_i;
|
last_type <= NULL;
|
data_rdy_trnsp <= 1'b1;
|
global_counter_transfer <= 4'd0;
|
end
|
|
|
if(data_ready_took)
|
|
tx_data_in <= tx_data_took;
|
else
|
else
|
tx_data_in <= tx_data_in;
|
tx_data_in <= tx_data_in;
|
|
|
if(tickin_tx && global_counter_transfer == 4'd5)
|
|
begin
|
|
tx_tcode_in <= timecode_tx_i;
|
|
tcode_rdy_trnsp <= 1'b1;
|
|
end
|
end
|
else
|
else
|
tx_tcode_in <= tx_tcode_in;
|
|
|
|
|
|
if(global_counter_transfer == 4'd3)
|
|
begin
|
begin
|
char_sent <= 1'b0;
|
char_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
ready_tx_data <= 1'b0;
|
|
end
|
|
else
|
|
begin
|
|
ready_tx_timecode <= ready_tx_timecode;
|
|
ready_tx_data <= ready_tx_data;
|
|
end
|
|
|
|
if(global_counter_transfer == 4'd7)
|
|
begin
|
|
last_type <= NULL;
|
|
global_counter_transfer <= 4'd0;
|
|
end
|
|
else
|
|
begin
|
|
last_type <= last_type;
|
last_type <= last_type;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
end
|
end
|
tx_spw_fct_c:
|
tx_spw_fct_c:
|
begin
|
begin
|
|
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
tx_dout_e <= last_tx_dout;
|
tx_dout_e <= last_tx_dout;
|
tx_sout_e <= last_tx_sout;
|
tx_sout_e <= last_tx_sout;
|
|
|
ready_tx_data <= ready_tx_data;
|
|
|
|
if(global_counter_transfer == 4'd3)
|
if(global_counter_transfer == 4'd3)
|
begin
|
begin
|
char_sent <= 1'b0;
|
char_sent <= 1'b0;
|
last_type <=FCT;
|
last_type <=FCT;
|
fct_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
if(fct_flag > 3'd0)
|
if(fct_flag > 3'd0)
|
fct_sent <= 1'b1;
|
fct_sent <= 1'b1;
|
else
|
else
|
fct_sent <= fct_sent;
|
fct_sent <= fct_sent;
|
|
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
end
|
end
|
tx_spw_data_c:
|
tx_spw_data_c:
|
begin
|
begin
|
|
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
tx_dout_e <= last_tx_dout;
|
tx_dout_e <= last_tx_dout;
|
tx_sout_e <= last_tx_sout;
|
tx_sout_e <= last_tx_sout;
|
|
|
fct_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
|
|
if(!tx_data_in[8])
|
if(!tx_data_in[8])
|
begin
|
begin
|
|
|
if(global_counter_transfer == 4'd9)
|
if(global_counter_transfer == 4'd9)
|
begin
|
begin
|
char_sent <= 1'b1;
|
char_sent <= 1'b1;
|
|
|
last_type <= DATA;
|
last_type <= DATA;
|
ready_tx_data <= 1'b1;
|
|
data_rdy_trnsp <= 1'b0;
|
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
|
|
|
if(data_ready_took)
|
|
tx_data_in <= tx_data_took;
|
|
else
|
|
tx_data_in <= tx_data_in;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
|
|
|
if(global_counter_transfer == 4'd1)
|
|
begin
|
|
txdata_flagctrl_tx_last <= tx_data_in;
|
|
end
|
|
else
|
|
txdata_flagctrl_tx_last <= txdata_flagctrl_tx_last;
|
|
|
|
|
|
if(global_counter_transfer >= 4'd2 && global_counter_transfer < 4'd5)
|
|
begin
|
|
ready_tx_data <= 1'b1;
|
|
end
|
|
else
|
ready_tx_data <= 1'b0;
|
ready_tx_data <= 1'b0;
|
|
|
|
char_sent <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
|
|
|
if(global_counter_transfer == 4'd4)
|
|
txdata_flagctrl_tx_last <= tx_data_in;
|
|
|
|
|
end
|
|
|
end
|
end
|
else if(tx_data_in[8])
|
else if(tx_data_in[8])
|
begin
|
begin
|
|
|
if(global_counter_transfer == 4'd3)
|
if(global_counter_transfer == 4'd3)
|
begin
|
begin
|
char_sent <= 1'b1;
|
char_sent <= 1'b1;
|
|
|
if(tx_data_in[1:0] == 2'b00)
|
if(tx_data_in[1:0] == 2'b00)
|
begin
|
begin
|
last_type <=EOP;
|
last_type <=EOP;
|
end
|
end
|
else if(tx_data_in[1:0] == 2'b01)
|
else if(tx_data_in[1:0] == 2'b01)
|
begin
|
begin
|
last_type <=EEP;
|
last_type <=EEP;
|
end
|
end
|
|
|
|
ready_tx_data <= 1'b0;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
data_rdy_trnsp <= 1'b0;
|
|
ready_tx_data <= 1'b1;
|
|
end
|
end
|
else
|
else
|
begin
|
begin
|
txdata_flagctrl_tx_last <= txdata_flagctrl_tx_last;
|
txdata_flagctrl_tx_last <= txdata_flagctrl_tx_last;
|
|
ready_tx_data <= 1'b1;
|
ready_tx_data <= 1'b0;
|
|
ready_tx_timecode <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
|
|
|
|
end
|
end
|
|
|
end
|
end
|
tx_spw_time_code_c:
|
tx_spw_time_code_c:
|
begin
|
begin
|
|
|
if(txwrite_tx && global_counter_transfer == 4'd6)
|
|
begin
|
|
data_rdy_trnsp <= 1'b1;
|
|
tx_data_in <= data_tx_i;
|
|
end
|
|
else
|
|
tx_data_in <= tx_data_in;
|
|
|
|
|
|
fct_sent <= 1'b0;
|
fct_sent <= 1'b0;
|
|
|
last_tx_dout <= tx_dout;
|
last_tx_dout <= tx_dout;
|
last_tx_sout <= tx_sout;
|
last_tx_sout <= tx_sout;
|
|
|
tx_dout_e <= last_tx_dout;
|
tx_dout_e <= last_tx_dout;
|
tx_sout_e <= last_tx_sout;
|
tx_sout_e <= last_tx_sout;
|
|
|
if(global_counter_transfer == 4'd13)
|
if(global_counter_transfer == 4'd13)
|
begin
|
begin
|
ready_tx_timecode <= 1'b1;
|
ready_tx_timecode <= 1'b1;
|
global_counter_transfer <= 4'd0;
|
global_counter_transfer <= 4'd0;
|
end
|
end
|
else
|
else
|
begin
|
begin
|
ready_tx_timecode <= 1'b0;
|
ready_tx_timecode <= 1'b0;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
global_counter_transfer <= global_counter_transfer + 4'd1;
|
end
|
end
|
|
|
|
|
if(global_counter_transfer != 4'd13)
|
if(global_counter_transfer != 4'd13)
|
begin
|
begin
|
|
|
timecode_s <= {timecode_ss[13:10],2'd2,tx_tcode_in[7:0]};
|
timecode_s <= {timecode_ss[13:10],2'd2,tx_tcode_in[7:0]};
|
end
|
end
|
else
|
else
|
begin
|
begin
|
ready_tx_data <= 1'b0;
|
|
last_timein_control_flag_tx <= tx_tcode_in;
|
last_timein_control_flag_tx <= tx_tcode_in;
|
last_type <= TIMEC;
|
last_type <= TIMEC;
|
end
|
end
|
|
|
end
|
end
|
default:
|
default:
|
begin
|
begin
|
last_type <= last_type;
|
last_type <= last_type;
|
global_counter_transfer <= global_counter_transfer;
|
global_counter_transfer <= global_counter_transfer;
|
tx_dout_e <= tx_dout_e;
|
tx_dout_e <= tx_dout_e;
|
tx_sout_e <= tx_sout_e;
|
tx_sout_e <= tx_sout_e;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
end
|
end
|
|
|
endmodule
|
endmodule
|
|
|
