/****************************************************************************************
*
*    File Name:  ddr3_mcp.v
*
* Dependencies:  ddr3.v, ddr3_parameters.vh
*
*  Description:  Micron SDRAM DDR3 (Double Data Rate 3) multi-chip package model
*
*   Disclaimer   This software code and all associated documentation, comments or other 
*  of Warranty:  information (collectively "Software") is provided "AS IS" without 
*                warranty of any kind. MICRON TECHNOLOGY, INC. ("MTI") EXPRESSLY 
*                DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
*                TO, NONINFRINGEMENT OF THIRD PARTY RIGHTS, AND ANY IMPLIED WARRANTIES 
*                OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. MTI DOES NOT 
*                WARRANT THAT THE SOFTWARE WILL MEET YOUR REQUIREMENTS, OR THAT THE 
*                OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE. 
*                FURTHERMORE, MTI DOES NOT MAKE ANY REPRESENTATIONS REGARDING THE USE OR 
*                THE RESULTS OF THE USE OF THE SOFTWARE IN TERMS OF ITS CORRECTNESS, 
*                ACCURACY, RELIABILITY, OR OTHERWISE. THE ENTIRE RISK ARISING OUT OF USE 
*                OR PERFORMANCE OF THE SOFTWARE REMAINS WITH YOU. IN NO EVENT SHALL MTI, 
*                ITS AFFILIATED COMPANIES OR THEIR SUPPLIERS BE LIABLE FOR ANY DIRECT, 
*                INDIRECT, CONSEQUENTIAL, INCIDENTAL, OR SPECIAL DAMAGES (INCLUDING, 
*                WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, 
*                OR LOSS OF INFORMATION) ARISING OUT OF YOUR USE OF OR INABILITY TO USE 
*                THE SOFTWARE, EVEN IF MTI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 
*                DAMAGES. Because some jurisdictions prohibit the exclusion or 
*                limitation of liability for consequential or incidental damages, the 
*                above limitation may not apply to you.
*
*                Copyright 2003 Micron Technology, Inc. All rights reserved.
*
****************************************************************************************/
 `timescale 1ps / 1ps

module ddr3_mcp (
    rst_n,
    ck,
    ck_n,
    cke,
    cs_n,
    ras_n,
    cas_n,
    we_n,
    dm_tdqs,
    ba,
    addr,
    dq,
    dqs,
    dqs_n,
    tdqs_n,
    odt
);

`ifdef den1024Mb
    `include "1024Mb_ddr3_parameters.vh"
`elsif den2048Mb
    `include "2048Mb_ddr3_parameters.vh"
`elsif den4096Mb
    `include "4096Mb_ddr3_parameters.vh"
`elsif den8192Mb
    `include "8192Mb_ddr3_parameters.vh"
`else
    // NOTE: Intentionally cause a compile fail here to force the users
    //       to select the correct component density before continuing
    ERROR: You must specify component density with +define+den____Mb.
`endif

    // Declare Ports
    input   rst_n;
    input   ck;
    input   ck_n;
    input   [CS_BITS-1:0]   cke;
    input   [CS_BITS-1:0]   cs_n;
    input   ras_n;
    input   cas_n;
    input   we_n;
    inout   [DM_BITS-1:0]   dm_tdqs;
    input   [BA_BITS-1:0]   ba;
    input   [ADDR_BITS-1:0] addr;
    inout   [DQ_BITS-1:0]   dq;
    inout   [DQS_BITS-1:0]  dqs;
    inout   [DQS_BITS-1:0]  dqs_n;
    output  [DQS_BITS-1:0]  tdqs_n;
    input   [CS_BITS-1:0]   odt;

    wire [RANKS-1:0] cke_mcp = cke;
    wire [RANKS-1:0] cs_n_mcp = cs_n;
    wire [RANKS-1:0] odt_mcp = odt;

    function integer ceil;
        input number;
        real number;

        // LMR 4.1.7
        // When either operand of a relational expression is a real operand then the other operand shall be converted
        // to an equivalent real value, and the expression shall be interpreted as a comparison between two real values.
        if (number > $rtoi(number))
            ceil = $rtoi(number) + 1;
        else
            ceil = number;
    endfunction

    function int max( input int a, b );
        max = (a < b) ? b : a;
    endfunction

    ddr3 rank [RANKS-1:0] (
        rst_n,
        ck, 
        ck_n,
        cke_mcp, 
        cs_n_mcp,
        ras_n, 
        cas_n, 
        we_n, 
        dm_tdqs, 
        ba, 
        addr, 
        dq, 
        dqs,
        dqs_n,
        tdqs_n,
        odt_mcp
    );

endmodule