Subversion Repositories sdhc-sc-core

// SDHC-SC-Core

// Secure Digital High Capacity Self Configuring Core

//

// (C) Copyright 2010, Rainer Kastl

// All rights reserved.

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are met:

//     * Redistributions of source code must retain the above copyright

//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above copyright

//       notice, this list of conditions and the following disclaimer in the

//       documentation and/or other materials provided with the distribution.

//     * Neither the name of the  nor the

//       names of its contributors may be used to endorse or promote products

//       derived from this software without specific prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  "AS IS" AND

// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

// DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY

// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

// File        : WbTransactionReadSingleBlock.sv

// Owner       : Rainer Kastl

// Description :

// Links       :

//

`ifndef WBTRANSACTIONREADSINGLEBLOCK_SV

`define WBTRANSACTIONREADSINGLEBLOCK_SV

`include "WbTransaction.sv";

`include "SdWb.sv";

class WbTransactionSequenceReadSingleBlock extends WbTransactionSequence;

        WbData StartAddr;

        WbData EndAddr;

        function new(WbData StartAddr, WbData EndAddr);

                size = 1 + 1 + 1 + 512*8/32; // startaddr, endaddr, operation, read data back

                transactions = new[size];

                foreach(transactions[i])

                        transactions[i] = new();

                this.StartAddr = StartAddr;

                this.EndAddr = EndAddr;

        endfunction

        constraint ReadSingleBlock {

                transactions[2].Addr == cOperationAddr;

                transactions[2].Data == cOperationRead;

                transactions[0].Addr == cStartAddrAddr ||

                transactions[0].Addr == cEndAddrAddr;

                if (transactions[0].Addr == cStartAddrAddr) {

                        transactions[1].Addr == cEndAddrAddr;

                        transactions[1].Data == EndAddr;

                        transactions[0].Data == StartAddr;

                } else if (transactions[0].Addr == cEndAddrAddr) {

                        transactions[1].Addr == cStartAddrAddr;

                        transactions[0].Data == EndAddr;

                        transactions[1].Data == StartAddr;

                }

                foreach(transactions[i]) {

                        if (i inside {[0:2]}) {

                                transactions[i].Kind == WbTransaction::Write;

                        } else {

                                transactions[i].Kind == WbTransaction::Read;

                                transactions[i].Addr == cReadDataAddr;

                        }

                }

        };

endclass

`endif