Subversion Repositories mpmc8

`timescale 1ns / 1ps
// ============================================================================
//        __
//   \\__/ o\    (C) 2015-2022  Robert Finch, Waterloo
//    \  __ /    All rights reserved.
//     \/_//     robfinch<remove>@finitron.ca
//       ||
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// ============================================================================
//
import mpmc10_pkg::*;

// Manage memory strip counters.

module mpmc10_req_strip_cnt(clk, state, wdf_rdy, rdy, num_strips, strip_cnt);
input clk;
input [3:0] state;
input wdf_rdy;
input rdy;
input [5:0] num_strips;
output reg [5:0] strip_cnt;

reg on;
always_ff @(posedge clk)
if (state==IDLE) begin
        strip_cnt <= 6'd0;
        on <= 1'b0;
end
else begin
        if (state==PRESET3)
                on <= 1'b1;
        if (state==WRITE_DATA0 && wdf_rdy && on) begin
        if (strip_cnt != num_strips)
        strip_cnt <= strip_cnt + 3'd1;
    else
        on <= 1'b0;
  end
  else if (state==READ_DATA1 && rdy && on) begin
        if (strip_cnt != num_strips)
                strip_cnt <= strip_cnt + 3'd1;
          else
                on <= 1'b0;
        end
end

endmodule