projects / OpenSPARC-T2-DV / blame
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1 | // ========== Copyright Header Begin ========================================== |
| 2 | // | |
| 3 | // OpenSPARC T2 Processor File: niu_smx_req_ff.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_smx_req_ff( | |
| 37 | /*AUTOARG*/ | |
| 38 | // Outputs | |
| 39 | rdreq_cmdff_full, rdreq_cmdff_rdata, rdreq_cmdff_empty, | |
| 40 | wreq_cmdff_full, wreq_cmdff_rdata, wreq_cmdff_empty, | |
| 41 | wreq_dataff_full, wreq_dataff_rdata, wreq_dataff_empty, | |
| 42 | wreq_pcmd_ff_full, wreq_pcmd_ff_rdata, wreq_pcmd_ff_empty, | |
| 43 | // Inputs | |
| 44 | clk, reset_l, rdreq_cmdff_wr, rdreq_cmdff_wdata, rdreq_cmdff_rd, | |
| 45 | wreq_cmdff_wr, wreq_cmdff_wdata, wreq_cmdff_rd, wreq_dataff_wr, | |
| 46 | wreq_dataff_wdata, wreq_dataff_rd, wreq_pcmd_ff_wr, | |
| 47 | wreq_pcmd_ff_wdata, wreq_pcmd_ff_rd | |
| 48 | ); | |
| 49 | ||
| 50 | input clk; | |
| 51 | input reset_l; | |
| 52 | ||
| 53 | // rdreq if; cmdff | |
| 54 | input rdreq_cmdff_wr; | |
| 55 | input [65:0] rdreq_cmdff_wdata; | |
| 56 | output rdreq_cmdff_full; | |
| 57 | input rdreq_cmdff_rd; | |
| 58 | output [65:0] rdreq_cmdff_rdata; | |
| 59 | output rdreq_cmdff_empty; | |
| 60 | ||
| 61 | // wreq if; cmd ff | |
| 62 | input wreq_cmdff_wr; | |
| 63 | input [65:0] wreq_cmdff_wdata; | |
| 64 | output wreq_cmdff_full; | |
| 65 | input wreq_cmdff_rd; | |
| 66 | output [65:0] wreq_cmdff_rdata; | |
| 67 | output wreq_cmdff_empty; // not use | |
| 68 | ||
| 69 | ||
| 70 | // wreq if; data ff | |
| 71 | input wreq_dataff_wr; | |
| 72 | input [127:0] wreq_dataff_wdata; | |
| 73 | output wreq_dataff_full; // right now not use ??? | |
| 74 | input wreq_dataff_rd; | |
| 75 | output [127:0] wreq_dataff_rdata; | |
| 76 | output wreq_dataff_empty; | |
| 77 | ||
| 78 | ||
| 79 | // pcmd ff | |
| 80 | input wreq_pcmd_ff_wr; | |
| 81 | input [3:0] wreq_pcmd_ff_wdata; | |
| 82 | output wreq_pcmd_ff_full; // right now not use ??? | |
| 83 | input wreq_pcmd_ff_rd; | |
| 84 | output [3:0] wreq_pcmd_ff_rdata; | |
| 85 | output wreq_pcmd_ff_empty; | |
| 86 | ||
| 87 | niu_smx_ff_regfl #(128,4) wreq_dataff_128bx16( | |
| 88 | .clk (clk), | |
| 89 | .reset_l (reset_l), | |
| 90 | .wr (wreq_dataff_wr), | |
| 91 | .wdata (wreq_dataff_wdata[127:0]), | |
| 92 | .full (wreq_dataff_full), | |
| 93 | .rd (wreq_dataff_rd), | |
| 94 | .empty (wreq_dataff_empty), | |
| 95 | .rdata (wreq_dataff_rdata[127:0]) | |
| 96 | ); | |
| 97 | ||
| 98 | niu_smx_ff_regfl #(66,2) wreq_cmdff_66bx4( | |
| 99 | .clk (clk), | |
| 100 | .reset_l (reset_l), | |
| 101 | .wr (wreq_cmdff_wr), | |
| 102 | .wdata (wreq_cmdff_wdata[65:0]), | |
| 103 | .full (wreq_cmdff_full), | |
| 104 | .rd (wreq_cmdff_rd), | |
| 105 | .empty (wreq_cmdff_empty), | |
| 106 | .rdata (wreq_cmdff_rdata[65:0]) | |
| 107 | ); | |
| 108 | ||
| 109 | niu_smx_ff_regfl #(66,2) rdreq_cmdff_66bx4( | |
| 110 | .clk (clk), | |
| 111 | .reset_l (reset_l), | |
| 112 | .wr (rdreq_cmdff_wr), | |
| 113 | .wdata (rdreq_cmdff_wdata[65:0]), | |
| 114 | .full (rdreq_cmdff_full), | |
| 115 | .rd (rdreq_cmdff_rd), | |
| 116 | .empty (rdreq_cmdff_empty), | |
| 117 | .rdata (rdreq_cmdff_rdata[65:0]) | |
| 118 | ); | |
| 119 | ||
| 120 | niu_smx_ff_regfl #(4,2) wreq_pcmd_ff_4bx4( | |
| 121 | .clk (clk), | |
| 122 | .reset_l (reset_l), | |
| 123 | .wr (wreq_pcmd_ff_wr), | |
| 124 | .wdata (wreq_pcmd_ff_wdata[3:0]), | |
| 125 | .full (wreq_pcmd_ff_full), | |
| 126 | .rd (wreq_pcmd_ff_rd), | |
| 127 | .empty (wreq_pcmd_ff_empty), | |
| 128 | .rdata (wreq_pcmd_ff_rdata[3:0]) | |
| 129 | ); | |
| 130 | ||
| 131 | endmodule |