Subversion Repositories spacewiresystemc

/*
//=================================================================//
//=
//=     SpwTCR
//=
//=     Author: Tiago da Costa Rodrigues
//=     E-Mail: tiagofee@gmail.com
//=     Licence: LGPL
//=
//=     Description: TOP module with submodules connections.
//=
//=   
//=     
//=     Version History:
//=     0.1: 10/01/2016 - First Version
//=
//=================================================================//
*/
module SPW_TOP(
CLOCK,
RESETn,
LINK_START,
LINK_DISABLE,
AUTOSTART,
CURRENTSTATE,
FLAGS,
DATA_I,
WR_DATA,
TX_FULL,
DATA_O,
RD_DATA,
RX_EMPTY,
TICK_OUT,
TIME_OUT,
TICK_IN,
TIME_IN,
TX_CLK_DIV,
SPILL_ENABLE,
Din, 
Sin,
Dout,
Sout
);



//control Interface
input                                   CLOCK;
input                                   RESETn;
input                                   LINK_START;
input                                   LINK_DISABLE;
input                                   AUTOSTART;
output logic [2:0]      CURRENTSTATE;
output logic [10:0]     FLAGS;
input            [8:0]  DATA_I;
input                                   WR_DATA;
output logic                    TX_FULL;
output logic [8:0]      DATA_O;
input                                   RD_DATA;
output logic                    RX_EMPTY;
input                                   Din;
input                                   Sin;
output logic                    TICK_OUT;
output logic [7:0]      TIME_OUT;
output logic                    Dout;
output logic                    Sout;
input                                   TICK_IN;
input            [7:0]  TIME_IN;
input            [6:0]  TX_CLK_DIV;
input                                           SPILL_ENABLE;

//Wires
logic                   resetTx_w;
logic                   enableTx_w;
logic                   sendNULLs_w;
logic                   sendFCTs_w;
logic                   sendNChars_w;
logic                   sendTimeCodes_w;
logic                   startupRate_w;
logic                   resetRx_w;
logic                   enableRx_w;
logic                   gotBit_w;
logic                   gotFCT_w;
logic                   gotNChar_w; 
logic                   gotTimeCode_w; 
logic                   gotNULL_w;
logic                   creditError_w;
logic                   rxError_w;
logic                   gotData_w;
logic                   gotEEP_w;
logic                   gotEOP_w;
logic                   creditErr_w;
logic                   creditError_tx_w;
logic                   creditError_rx_w;
logic                   rx_fifo_empty_w;
logic                   rx_fifo_full_w;
logic                   rx_fifo_read_w;
logic                   rx_fifo_write_w;
logic                   tx_fifo_empty_w;
logic                   tx_fifo_full_w;
logic                   tx_fifo_read_w;
logic                   tx_fifo_write_w;
logic                   tx_clock_en_w;
logic                           clk_rx_w;
logic                   enableTimer_w;
logic                   after128_w;
logic                   after64_w;
logic                           sendFctReq_w;
logic                   sendFctAck_w;
logic                           almost_full_w;
logic [8:0]             rx_fifo_data_i_w;
logic [8:0]             rx_fifo_data_o_w;
logic [8:0]             tx_fifo_data_i_w;
logic [8:0]             tx_fifo_data_o_w;
logic                   data_req_w;
logic                   data_ack_w;

//Assignments
assign TX_FULL  = tx_fifo_full_w;
assign RX_EMPTY         = rx_fifo_empty_w;
//Error handle
assign FLAGS = {rxError_w, creditError_tx_w, creditError_rx_w, gotTimeCode_w, gotFCT_w, gotData_w, gotEEP_w, gotEOP_w, gotNChar_w, gotNULL_w, gotBit_w};

assign creditError_w = creditError_tx_w | creditError_rx_w;
SpwTCR_FSM FSM( 

          .CLOCK(CLOCK),
          .RESETn(RESETn),
          .LINK_START(LINK_START),
          .LINK_DISABLE(LINK_DISABLE),
          .AUTOSTART(AUTOSTART),
          .CURRENTSTATE(CURRENTSTATE),
          .after128(after128_w),
          .after64(after64_w),
          .enableTimer(enableTimer_w),
          .resetTx(resetTx_w),
          .enableTx(enableTx_w),
          .sendNULLs(sendNULLs_w),
          .sendFCTs(sendFCTs_w),
          .sendNChars(sendNChars_w),
          .sendTimeCodes(sendTimeCodes_w),
          .startupRate(startupRate_w),
          .resetRx(resetRx_w),
          .enableRx(enableRx_w),
          .gotFCT(gotFCT_w), 
          .gotNChar(gotNChar_w), 
          .gotTimeCode(gotTimeCode_w), 
          .gotNULL(gotNULL_w), 
          .creditError(creditError_w),
          .rxError(rxError_w)
  );

SpwTCR_FSM_TIMER FSM_TIMER(
.CLOCK(CLOCK),
.RESETn(RESETn),
.enableTimer(enableTimer_w),
.after128(after128_w),
.after64(after64_w)
);
 
SpwTCR_RX_CLOCK_RECOVER RX_CLOCK_RECOVER(
.Din(Din), 
.Sin(Sin), 
.clk_rx(clk_rx_w)
);

SpwTCR_RX_FIFO RX_FIFO(
.clk(CLOCK),
.RESETn(RESETn),
.data_req(RD_DATA), 
.we(rx_fifo_write_w),
.data_i(rx_fifo_data_i_w), 
.data_o(DATA_O),
.full(rx_fifo_full_w), 
.almost_full(almost_full_w),
.empty(rx_fifo_empty_w)
);


SpwTCR_RX RX(
.Din(Din), 
.Sin(Sin),
.CLK_RX(clk_rx_w),
.CLOCK(CLOCK),
.RESETn(RESETn & resetRx_w),
.TICK_OUT(TICK_OUT),
.TIME_OUT(TIME_OUT),
.RX_DATA(rx_fifo_data_i_w),
.BUFFER_WRITE(rx_fifo_write_w),
.BUFFER_READY(!rx_fifo_full_w),
.almost_full(almost_full_w),
.enableRx(enableRx_w),
.gotBit(gotBit_w),
.gotFCT(gotFCT_w), 
.gotNChar(gotNChar_w), 
.gotTimeCode(gotTimeCode_w), 
.gotNULL(gotNULL_w),
.gotData(gotData_w),
.gotEEP(gotEEP_w),
.gotEOP(gotEOP_w),
.creditErr(creditError_rx_w),
.rxError(rxError_w),
.sendFctReq(sendFctReq_w),
.sendFctAck(sendFctAck_w)
);

SpwTCR_TX_FIFO TX_FIFO(
.CLOCK(CLOCK),
.RESETn(RESETn),
.data_req(data_req_w), 
.we(WR_DATA), .data_i(DATA_I), 
.data_o(tx_fifo_data_o_w), 
.data_ack(data_ack_w), 
.full(tx_fifo_full_w), 
.empty(tx_fifo_empty_w)
);


SpwTCR_TX_CLOCK TX_CLOCK (
.CLOCK(CLOCK),
.RESETn(RESETn),
.TX_CLK_DIV(TX_CLK_DIV),
.startupRate(startupRate_w),
.CLK_EN(tx_clock_en_w)
);      


SpwTCR_TX TX(
.CLOCK(CLOCK),
.RESETn(RESETn),
.CLK_EN(tx_clock_en_w),
.resetTx(RESETn & resetTx_w),
.enableTx(enableTx_w),
.sendNULLs(sendNULLs_w),
.sendFCTs(sendFCTs_w),
.sendNChars(sendNChars_w),
.sendTimeCodes(sendTimeCodes_w),
.creditErr(creditError_tx_w),
.TICK_IN(TICK_IN),
.TIME_IN(TIME_IN),
.sendFctReq(sendFctReq_w),
.sendFctAck(sendFctAck_w),
.spillEnable(SPILL_ENABLE),
.gotFCT(gotFCT_w),
.data_ack(data_ack_w),
.data(tx_fifo_data_o_w),
.data_req(data_req_w),
.Dout(Dout),
.Sout(Sout)
);

endmodule