Subversion Repositories openrisc

//////////////////////////////////////////////////////////////////////

////                                                              ////

//// usbSerialInterfaceEngine.v                                   ////

////                                                              ////

//// This file is part of the usbhostslave opencores effort.

//// <http://www.opencores.org/cores//>                           ////

////                                                              ////

//// Module Description:                                          ////

//// 

////                                                              ////

//// To Do:                                                       ////

//// 

////                                                              ////

//// Author(s):                                                   ////

//// - Steve Fielding, sfielding@base2designs.com                 ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

////                                                              ////

//// Copyright (C) 2004 Steve Fielding and OPENCORES.ORG          ////

////                                                              ////

//// This source file may be used and distributed without         ////

//// restriction provided that this copyright statement is not    ////

//// removed from the file and that any derivative work contains  ////

//// the original copyright notice and the associated disclaimer. ////

////                                                              ////

//// This source file is free software; you can redistribute it   ////

//// and/or modify it under the terms of the GNU Lesser General   ////

//// Public License as published by the Free Software Foundation; ////

//// either version 2.1 of the License, or (at your option) any   ////

//// later version.                                               ////

////                                                              ////

//// This source is distributed in the hope that it will be       ////

//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////

//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////

//// PURPOSE. See the GNU Lesser General Public License for more  ////

//// details.                                                     ////

////                                                              ////

//// You should have received a copy of the GNU Lesser General    ////

//// Public License along with this source; if not, download it   ////

//// from <http://www.opencores.org/lgpl.shtml>                   ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

//

`include "timescale.v"

module usbSerialInterfaceEngine(

  clk, rst,

  //readUSBWireData

  USBWireDataIn,

  USBWireDataInTick,

  //writeUSBWireData

  USBWireDataOut,

  USBWireCtrlOut,

  USBWireDataOutTick,

  //SIEReceiver

  connectState,

  //processRxBit

  resumeDetected,

  //processRxByte

  RxCtrlOut,

  RxDataOutWEn,

  RxDataOut,

    //SIETransmitter

  SIEPortCtrlIn,

  SIEPortDataIn,

  SIEPortTxRdy,

  SIEPortWEn,

    //lineControlUpdate

  fullSpeedPolarity,

  fullSpeedBitRate,

  noActivityTimeOut,

  noActivityTimeOutEnable

);

input clk, rst;

//readUSBWireData

input [1:0] USBWireDataIn;

output USBWireDataInTick;

output noActivityTimeOut;

input noActivityTimeOutEnable;

//writeUSBWireData

output [1:0] USBWireDataOut;

output USBWireCtrlOut;

output USBWireDataOutTick;

//SIEReceiver

output [1:0] connectState;

//processRxBit

output resumeDetected;

//processRxByte

output [7:0] RxCtrlOut;

output RxDataOutWEn;

output [7:0] RxDataOut;

//SIETransmitter

input [7:0] SIEPortCtrlIn;

input [7:0] SIEPortDataIn;

output SIEPortTxRdy;

input SIEPortWEn;

//lineControlUpdate

input fullSpeedPolarity;

input fullSpeedBitRate;

wire clk, rst;

//readUSBWireData

wire [1:0] USBWireDataIn;

wire USBWireDataInTick;

//writeUSBWireData

wire [1:0] USBWireDataOut;

wire USBWireCtrlOut;

wire noActivityTimeOut;

wire USBWireDataOutTick;

//SIEReceiver

wire [1:0] connectState;

//processRxBit

wire resumeDetected;

//processRxByte

wire [7:0] RxCtrlOut;

wire RxDataOutWEn;

wire [7:0] RxDataOut;

//SIETransmitter

wire [7:0] SIEPortCtrlIn;

wire [7:0] SIEPortDataIn;

wire SIEPortTxRdy;

wire SIEPortWEn;

//lineControlUpdate

wire fullSpeedPolarity;

wire fullSpeedBitRate;

//internal wiring

wire processRxBitsWEn;

wire processRxBitRdy;

wire [1:0] RxWireDataFromWireRx;

wire RxWireDataWEn;

wire TxWireActiveDrive;

wire [1:0] TxBitsFromArbToWire;

wire TxCtrlFromArbToWire;

wire USBWireRdy;

wire USBWireWEn;

wire USBWireReadyFromTxArb;

wire prcTxByteCtrl;

wire [1:0] prcTxByteData;

wire prcTxByteGnt;

wire prcTxByteReq;

wire prcTxByteWEn;

wire SIETxCtrl;

wire [1:0] SIETxData;

wire SIETxGnt;

wire SIETxReq;

wire SIETxWEn;

wire [7:0] TxByteFromSIEToPrcTxByte;

wire [7:0] TxCtrlFromSIEToPrcTxByte;

wire [1:0] JBit;

wire [1:0] KBit;

wire processRxByteWEn;

wire [7:0] RxDataFromPrcRxBitToPrcRxByte;

wire [7:0] RxCtrlFromPrcRxBitToPrcRxByte;

wire processRxByteRdy;

//Rx CRC

wire RxCRC16En;

wire [15:0] RxCRC16Result;

wire RxCRC16UpdateRdy;

wire RxCRC5En;

wire [4:0] RxCRC5Result;

wire RxCRC5_8Bit;

wire [7:0] RxCRCData;

wire RxRstCRC;

wire RxCRC5UpdateRdy;

//Tx CRC

wire TxCRC16En;

wire [15:0] TxCRC16Result;

wire TxCRC16UpdateRdy;

wire TxCRC5En;

wire [4:0] TxCRC5Result;

wire TxCRC5_8Bit;

wire [7:0] TxCRCData;

wire TxRstCRC;

wire TxCRC5UpdateRdy;

wire processTxByteRdy;

wire processTxByteWEn;

wire SIEFsRate;

wire TxFSRateFromSIETxToPrcTxByte;

wire prcTxByteFSRate;

wire FSRateFromArbiterToWire;

wire RxWireActive;

lineControlUpdate u_lineControlUpdate

  (.fullSpeedPolarity(fullSpeedPolarity),

  .fullSpeedBitRate(fullSpeedBitRate),

  .JBit(JBit),

  .KBit(KBit) );

SIEReceiver u_SIEReceiver

  (

  .RxWireDataIn(RxWireDataFromWireRx),

  .RxWireDataWEn(RxWireDataWEn),

  .clk(clk),

  .connectState(connectState),

  .rst(rst) );

processRxBit u_processRxBit

  (.JBit(JBit),

  .KBit(KBit),

  .RxBitsIn(RxWireDataFromWireRx),

  .RxCtrlOut(RxCtrlFromPrcRxBitToPrcRxByte),

  .RxDataOut(RxDataFromPrcRxBitToPrcRxByte),

  .clk(clk),

  .processRxBitRdy(processRxBitRdy),

  .processRxBitsWEn(RxWireDataWEn),

  .processRxByteWEn(processRxByteWEn),

  .resumeDetected(resumeDetected),

  .rst(rst),

  .processRxByteRdy(processRxByteRdy),

  .RxWireActive(RxWireActive)

  );

processRxByte u_processRxByte

  (.CRC16En(RxCRC16En),

  .CRC16Result(RxCRC16Result),

  .CRC16UpdateRdy(RxCRC16UpdateRdy),

  .CRC5En(RxCRC5En),

  .CRC5Result(RxCRC5Result),

  .CRC5_8Bit(RxCRC5_8Bit),

  .CRC5UpdateRdy(RxCRC5UpdateRdy),

  .CRCData(RxCRCData),

  .RxByteIn(RxDataFromPrcRxBitToPrcRxByte),

  .RxCtrlIn(RxCtrlFromPrcRxBitToPrcRxByte),

  .RxCtrlOut(RxCtrlOut),

  .RxDataOutWEn(RxDataOutWEn),

  .RxDataOut(RxDataOut),

  .clk(clk),

  .processRxDataInWEn(processRxByteWEn),

  .rst(rst),

  .rstCRC(RxRstCRC),

  .processRxByteRdy(processRxByteRdy) );

updateCRC5 RxUpdateCRC5

  (.rstCRC(RxRstCRC),

  .CRCResult(RxCRC5Result),

  .CRCEn(RxCRC5En),

  .CRC5_8BitIn(RxCRC5_8Bit),

  .dataIn(RxCRCData),

  .ready(RxCRC5UpdateRdy),

  .clk(clk),

  .rst(rst) );

updateCRC16 RxUpdateCRC16

  (.rstCRC(RxRstCRC),

  .CRCResult(RxCRC16Result),

  .CRCEn(RxCRC16En),

  .dataIn(RxCRCData),

  .ready(RxCRC16UpdateRdy),

  .clk(clk),

  .rst(rst) );

SIETransmitter u_SIETransmitter

  (.CRC16En(TxCRC16En),

  .CRC16Result(TxCRC16Result),

  .CRC5En(TxCRC5En),

  .CRC5Result(TxCRC5Result),

  .CRC5_8Bit(TxCRC5_8Bit),

  .CRCData(TxCRCData),

  .CRC5UpdateRdy(TxCRC5UpdateRdy),

  .CRC16UpdateRdy(TxCRC16UpdateRdy),

  .JBit(JBit),

  .KBit(KBit),

  .SIEPortCtrlIn(SIEPortCtrlIn),

  .SIEPortDataIn(SIEPortDataIn),

  .SIEPortTxRdy(SIEPortTxRdy),

  .SIEPortWEn(SIEPortWEn),

  .TxByteOutCtrl(TxCtrlFromSIEToPrcTxByte),

  .TxByteOut(TxByteFromSIEToPrcTxByte),

  .USBWireCtrl(SIETxCtrl),

  .USBWireData(SIETxData),

  .USBWireGnt(SIETxGnt),

  .USBWireRdy(USBWireReadyFromTxArb),

  .USBWireReq(SIETxReq),

  .USBWireWEn(SIETxWEn),

  .clk(clk),

  .processTxByteRdy(processTxByteRdy),

  .processTxByteWEn(processTxByteWEn),

  .rst(rst),

  .rstCRC(TxRstCRC),

  .USBWireFullSpeedRate(SIEFsRate),

  .TxByteOutFullSpeedRate(TxFSRateFromSIETxToPrcTxByte),

  .fullSpeedRateIn(fullSpeedBitRate)

  );

updateCRC5 TxUpdateCRC5

  (.rstCRC(TxRstCRC),

  .CRCResult(TxCRC5Result),

  .CRCEn(TxCRC5En),

  .CRC5_8BitIn(TxCRC5_8Bit),

  .dataIn(TxCRCData),

  .ready(TxCRC5UpdateRdy),

  .clk(clk),

  .rst(rst) );

updateCRC16 TxUpdateCRC16

  (.rstCRC(TxRstCRC),

  .CRCResult(TxCRC16Result),

  .CRCEn(TxCRC16En),

  .dataIn(TxCRCData),

  .ready(TxCRC16UpdateRdy),

  .clk(clk),

  .rst(rst) );

processTxByte u_processTxByte

  (.JBit(JBit),

  .KBit(KBit),

  .TxByteCtrlIn(TxCtrlFromSIEToPrcTxByte),

  .TxByteIn(TxByteFromSIEToPrcTxByte),

  .USBWireCtrl(prcTxByteCtrl),

  .USBWireData(prcTxByteData),

  .USBWireGnt(prcTxByteGnt),

  .USBWireRdy(USBWireReadyFromTxArb),

  .USBWireReq(prcTxByteReq),

  .USBWireWEn(prcTxByteWEn),

  .clk(clk),

  .processTxByteRdy(processTxByteRdy),

  .processTxByteWEn(processTxByteWEn),

  .rst(rst),

  .USBWireFullSpeedRate(prcTxByteFSRate),

  .TxByteFullSpeedRateIn(TxFSRateFromSIETxToPrcTxByte)

  );

USBTxWireArbiter u_USBTxWireArbiter

  (.SIETxCtrl(SIETxCtrl),

  .SIETxData(SIETxData),

  .SIETxGnt(SIETxGnt),

  .SIETxReq(SIETxReq),

  .SIETxWEn(SIETxWEn),

  .TxBits(TxBitsFromArbToWire),

  .TxCtl(TxCtrlFromArbToWire),

  .USBWireRdyIn(USBWireRdy),

  .USBWireRdyOut(USBWireReadyFromTxArb),

  .USBWireWEn(USBWireWEn),

  .clk(clk),

  .prcTxByteCtrl(prcTxByteCtrl),

  .prcTxByteData(prcTxByteData),

  .prcTxByteGnt(prcTxByteGnt),

  .prcTxByteReq(prcTxByteReq),

  .prcTxByteWEn(prcTxByteWEn),

  .rst(rst),

  .SIETxFSRate(SIEFsRate),

  .prcTxByteFSRate(prcTxByteFSRate),

  .TxFSRate(FSRateFromArbiterToWire)

  );

writeUSBWireData u_writeUSBWireData

  (.TxBitsIn(TxBitsFromArbToWire),

  .TxBitsOut(USBWireDataOut),

  .TxDataOutTick(USBWireDataOutTick),

  .TxCtrlIn(TxCtrlFromArbToWire),

  .TxCtrlOut(USBWireCtrlOut),

  .USBWireRdy(USBWireRdy),

  .USBWireWEn(USBWireWEn),

  .TxWireActiveDrive(TxWireActiveDrive),

  .fullSpeedRate(FSRateFromArbiterToWire),

  .clk(clk),

  .rst(rst)

   );

readUSBWireData u_readUSBWireData

  (.RxBitsIn(USBWireDataIn),

  .RxDataInTick(USBWireDataInTick),

  .RxBitsOut(RxWireDataFromWireRx),

  .SIERxRdyIn(processRxBitRdy),

  .SIERxWEn(RxWireDataWEn),

  .fullSpeedRate(fullSpeedBitRate),

  .TxWireActiveDrive(TxWireActiveDrive),

  .clk(clk),

  .rst(rst),

  .noActivityTimeOut(noActivityTimeOut),

  .RxWireActive(RxWireActive),

  .noActivityTimeOutEnable(noActivityTimeOutEnable)

  );

endmodule