| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: niu_meta_arb_dbg.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 | |
| 36 | module niu_meta_arb_dbg( |
| 37 | /*AUTOARG*/ |
| 38 | // Outputs |
| 39 | meta_arb_debug_port, |
| 40 | // Inputs |
| 41 | clk, pio_arb_ctrl, pio_arb_debug_vector, |
| 42 | int_debug_port |
| 43 | ); |
| 44 | |
| 45 | input clk; |
| 46 | |
| 47 | input [31:0] pio_arb_ctrl; |
| 48 | input [31:0] pio_arb_debug_vector; |
| 49 | input [31:0] int_debug_port; |
| 50 | |
| 51 | // output to debug blk |
| 52 | output [31:0] meta_arb_debug_port; |
| 53 | |
| 54 | |
| 55 | reg [31:0] meta_arb_debug_port, meta_arb_debug_port_n; |
| 56 | reg [31:0] pio_arb_debug_vector_r; |
| 57 | reg [2:0] debug_sel; |
| 58 | |
| 59 | // wire [31:0] int_debug_port= 32'h0; |
| 60 | |
| 61 | always @(posedge clk) begin |
| 62 | meta_arb_debug_port<= meta_arb_debug_port_n; |
| 63 | pio_arb_debug_vector_r<= pio_arb_debug_vector; |
| 64 | debug_sel<= pio_arb_ctrl[2:0]; |
| 65 | end |
| 66 | |
| 67 | |
| 68 | /*AUTO_CONSTANT (`META_ARB__TRAINING_SET `MEGA_ARB__TRAINING_LOAD)*/ |
| 69 | |
| 70 | always @ (/*AUTOSENSE*/debug_sel or int_debug_port |
| 71 | or meta_arb_debug_port or pio_arb_debug_vector_r) begin |
| 72 | case(debug_sel) |
| 73 | `META_ARB_TRAINING_SET: meta_arb_debug_port_n= ~meta_arb_debug_port; |
| 74 | `META_ARB_TRAINING_LOAD: meta_arb_debug_port_n= pio_arb_debug_vector_r; |
| 75 | default: meta_arb_debug_port_n= int_debug_port; |
| 76 | endcase |
| 77 | end |
| 78 | |
| 79 | |
| 80 | endmodule |
| 81 | |
| 82 | |