projects / OpenSPARC-T2-DV / blame
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1 | // ========== Copyright Header Begin ========================================== |
| 2 | // | |
| 3 | // OpenSPARC T2 Processor File: niu_zcp_reset_gen.v | |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
| 6 | // | |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 8 | // | |
| 9 | // This program is free software; you can redistribute it and/or modify | |
| 10 | // it under the terms of the GNU General Public License as published by | |
| 11 | // the Free Software Foundation; version 2 of the License. | |
| 12 | // | |
| 13 | // This program is distributed in the hope that it will be useful, | |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | // GNU General Public License for more details. | |
| 17 | // | |
| 18 | // You should have received a copy of the GNU General Public License | |
| 19 | // along with this program; if not, write to the Free Software | |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 21 | // | |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license | |
| 23 | // choice is available it will apply instead, Sun elects to use only | |
| 24 | // the General Public License version 2 (GPLv2) at this time for any | |
| 25 | // software where a choice of GPL license versions is made | |
| 26 | // available with the language indicating that GPLv2 or any later version | |
| 27 | // may be used, or where a choice of which version of the GPL is applied is | |
| 28 | // otherwise unspecified. | |
| 29 | // | |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
| 32 | // have any questions. | |
| 33 | // | |
| 34 | // ========== Copyright Header End ============================================ | |
| 35 | /*%W% %G%*/ | |
| 36 | ||
| 37 | /************************************************************************* | |
| 38 | * | |
| 39 | * File Name : niu_zcp_reset_gen.v | |
| 40 | * Authors Name : John Lo | |
| 41 | * Description : Reset generator block | |
| 42 | * Parent Module: niu_zcp | |
| 43 | * Child Module: | |
| 44 | * Interface Mod: | |
| 45 | * Date Created : 12/20/2004 | |
| 46 | * | |
| 47 | * Copyright (c) 2020, Sun Microsystems, Inc. | |
| 48 | * Sun Proprietary and Confidential | |
| 49 | * | |
| 50 | * Design Notes: | |
| 51 | * | |
| 52 | * Synthesis Notes: | |
| 53 | * | |
| 54 | *************************************************************************/ | |
| 55 | ||
| 56 | ||
| 57 | module niu_zcp_reset_gen (clk,FUNC_MODE,reset_l,reset); | |
| 58 | ||
| 59 | input clk; | |
| 60 | input FUNC_MODE; | |
| 61 | input reset_l; | |
| 62 | output reset; | |
| 63 | ||
| 64 | wire reset_l; | |
| 65 | wire reset_reg_l; | |
| 66 | wire reset_FUNC_MODE; | |
| 67 | wire reset; | |
| 68 | wire reset_rts; | |
| 69 | ||
| 70 | zcp_RegDff #(1) reset_RegDff (.din(reset_l),.clk(clk),.qout(reset_reg_l)); | |
| 71 | ||
| 72 | assign reset_FUNC_MODE = ~reset_reg_l; | |
| 73 | assign reset_rts = reset_FUNC_MODE & FUNC_MODE; | |
| 74 | ||
| 75 | `ifdef NEPTUNE | |
| 76 | RTS_ROOT_BUF zcp_RTS_ROOT_BUF(.Z(reset),.A(reset_rts)); | |
| 77 | `else // !ifdef NEPTUNE | |
| 78 | assign reset = reset_rts; | |
| 79 | `endif | |
| 80 | ||
| 81 | ||
| 82 | endmodule // niu_zcp_reset_gen | |
| 83 |