Subversion Repositories ps2_host_controller

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

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////  ps2_host_defines.v                                          ////

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////  Description                                                 ////

////  Bunch of defines used in this core                          ////

////                                                              ////

////  Author:                                                     ////

////      - Piotr Foltyn, piotr.foltyn@gmail.com                  ////

////                                                              ////

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////                                                              ////

//// Copyright (C) 2011 Author                                    ////

////                                                              ////

//// 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                     ////

////                                                              ////

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`ifndef SYS_CLOCK_HZ

`define SYS_CLOCK_HZ 100_000_000

`endif

`define T_100_MICROSECONDS (`SYS_CLOCK_HZ / 10_000)

`define T_200_MICROSECONDS (`SYS_CLOCK_HZ /  5_000)

// Ideally below define should be $clog2(`T_100_MICROSECONDS + 1)

`define T_100_MICROSECONDS_SIZE 14

// ... and same here $clog2(`T_200_MICROSECONDS + 1)

`define T_200_MICROSECONDS_SIZE 15