projects / OpenSPARC-T2-DV / blame
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1 | // ========== Copyright Header Begin ========================================== |
| 2 | // | |
| 3 | // OpenSPARC T2 Processor File: niu_ram_64x74.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 | /********************************************************** | |
| 37 | *********************************************************** | |
| 38 | ||
| 39 | Project : Niu | |
| 40 | ||
| 41 | File name : niu_ram_64x74.v | |
| 42 | ||
| 43 | Module(s) name : niu_ram_64x74 | |
| 44 | ||
| 45 | Parent modules : | |
| 46 | ||
| 47 | Child modules : | |
| 48 | ||
| 49 | Author's name : George Chu | |
| 50 | ||
| 51 | Date : April. 2004 | |
| 52 | ||
| 53 | Description : | |
| 54 | ||
| 55 | Synthesis Notes: | |
| 56 | ||
| 57 | Modification History: | |
| 58 | Date Description | |
| 59 | ---- ----------- | |
| 60 | ||
| 61 | ************************************************************ | |
| 62 | ***********************************************************/ | |
| 63 | ||
| 64 | `timescale 1ns/10ps | |
| 65 | ||
| 66 | module niu_ram_64x74 ( | |
| 67 | tcu_pce_ov, | |
| 68 | tcu_aclk, | |
| 69 | tcu_bclk, | |
| 70 | tcu_se_scancollar_in, | |
| 71 | tcu_se_scancollar_out, | |
| 72 | tcu_clk_stop, | |
| 73 | tcu_array_wr_inhibit, | |
| 74 | scan_in, | |
| 75 | scan_out, | |
| 76 | mbi_wdata, | |
| 77 | mbi_rd_adr, | |
| 78 | mbi_wr_adr, | |
| 79 | mbi_wr_en, | |
| 80 | mbi_rd_en, | |
| 81 | mbi_run, | |
| 82 | data_inp, | |
| 83 | addr_rd, | |
| 84 | addr_wt, | |
| 85 | wt_enable, | |
| 86 | cs_rd, | |
| 87 | clk, | |
| 88 | data_out | |
| 89 | ); | |
| 90 | ||
| 91 | parameter DATA_WIDTH_MINUS1 = 73; | |
| 92 | parameter ADDR_WIDTH_MINUS1 = 5; | |
| 93 | ||
| 94 | input tcu_pce_ov; | |
| 95 | input tcu_aclk; | |
| 96 | input tcu_bclk; | |
| 97 | input tcu_se_scancollar_in; | |
| 98 | input tcu_se_scancollar_out; | |
| 99 | input tcu_clk_stop; | |
| 100 | input tcu_array_wr_inhibit; | |
| 101 | input scan_in; | |
| 102 | output scan_out; | |
| 103 | ||
| 104 | input [DATA_WIDTH_MINUS1:0] mbi_wdata; | |
| 105 | input [ADDR_WIDTH_MINUS1:0] mbi_rd_adr; | |
| 106 | input [ADDR_WIDTH_MINUS1:0] mbi_wr_adr; | |
| 107 | input mbi_wr_en; | |
| 108 | input mbi_rd_en; | |
| 109 | input mbi_run; | |
| 110 | ||
| 111 | input [DATA_WIDTH_MINUS1:0] data_inp; // data_input, via port_B | |
| 112 | input [ADDR_WIDTH_MINUS1:0] addr_rd; // read_address, via port_A | |
| 113 | input [ADDR_WIDTH_MINUS1:0] addr_wt; // write_address, via port_B | |
| 114 | input wt_enable; // write_enable, via port_B | |
| 115 | input cs_rd; // chip_selet_rd_port, i.e., port_A | |
| 116 | input clk; | |
| 117 | output [DATA_WIDTH_MINUS1:0] data_out; // data read out, via port_A | |
| 118 | ||
| 119 | wire [DATA_WIDTH_MINUS1:0] data_out; | |
| 120 | wire scan_out; | |
| 121 | ||
| 122 | wire [ADDR_WIDTH_MINUS1:0] mux_wr_adr; | |
| 123 | wire mux_wr_en; | |
| 124 | wire [ADDR_WIDTH_MINUS1:0] mux_rd_adr; | |
| 125 | wire mux_rd_en; | |
| 126 | wire [DATA_WIDTH_MINUS1:0] mux_wdata; | |
| 127 | ||
| 128 | assign mux_wdata = mbi_run ? mbi_wdata : data_inp; | |
| 129 | assign mux_rd_adr = mbi_run ? mbi_rd_adr : addr_rd; | |
| 130 | assign mux_wr_adr = mbi_run ? mbi_wr_adr : addr_wt; | |
| 131 | assign mux_wr_en = mbi_run ? mbi_wr_en : wt_enable; | |
| 132 | assign mux_rd_en = mbi_run ? mbi_rd_en : cs_rd; | |
| 133 | ||
| 134 | n2_com_dp_64x74s_cust ram_64x74_0 ( | |
| 135 | .tcu_pce_ov (tcu_pce_ov), | |
| 136 | .tcu_aclk (tcu_aclk), | |
| 137 | .tcu_bclk (tcu_bclk), | |
| 138 | .tcu_se_scancollar_in (tcu_se_scancollar_in), | |
| 139 | .tcu_se_scancollar_out (tcu_se_scancollar_out), | |
| 140 | .tcu_clk_stop (tcu_clk_stop), | |
| 141 | .tcu_array_wr_inhibit (tcu_array_wr_inhibit), | |
| 142 | .scan_in (scan_in), | |
| 143 | .scan_out (scan_out), | |
| 144 | .wr_adr (mux_wr_adr[5:0]), | |
| 145 | .wr_en (mux_wr_en), | |
| 146 | .rd_adr (mux_rd_adr[5:0]), | |
| 147 | .rd_en (mux_rd_en), | |
| 148 | .din (mux_wdata[73:0]), | |
| 149 | .dout (data_out[73:0]), | |
| 150 | .rdclk (clk), | |
| 151 | .wrclk (clk) | |
| 152 | ); | |
| 153 | ||
| 154 | endmodule |