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[/] [mpmc8/] [trunk/] [rtl/] [mpmc8_set_num_strips.sv] - Rev 2

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`timescale 1ns / 1ps
// ============================================================================
//        __
//   \\__/ o\    (C) 2015-2022  Robert Finch, Waterloo
//    \  __ /    All rights reserved.
//     \/_//     robfinch<remove>@finitron.ca
//       ||
//
// BSD 3-Clause License
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the copyright holder 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ============================================================================
//
import mpmc8_pkg::*;

module mpmc8_set_num_strips(clk, state, ch,
        we0, we1, we2, we3, we4, we5, we6, we7, num_strips);
parameter S0 = 3'd7;
parameter S1 = 3'd1;
parameter S2 = 3'd0;
parameter S3 = 3'd0;
parameter S4 = 3'd0;
parameter S5 = 3'd3;
parameter S6 = 3'd0;
parameter S7 = 3'd3;
input clk;
input [3:0] state;
input [3:0] ch;
input we0;
input we1;
input we2;
input we3;
input we4;
input we5;
input we6;
input we7;
output reg [2:0] num_strips;

// Setting burst length
always_ff @(posedge clk)
if (state==IDLE) begin
        num_strips <= 3'd0;
        case(ch)
        4'd0:   if (!we0) num_strips <= S0;             //7
        4'd1:   if (!we1)       num_strips <= S1;               //1
        4'd2:   if (!we2)       num_strips <= S2;
        4'd3:   if (!we3)       num_strips <= S3;
        4'd4:   if (!we4)       num_strips <= S4;
        4'd5:   if (!we5) num_strips <= S5;     //3
        4'd6:   if (!we6)       num_strips <= S6;
        4'd7:   if (!we7) num_strips <= S7;
        default:        ;
        endcase
end

endmodule

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