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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: niu_ipp_sum_lib.h | |
5 | * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
6 | * 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
7 | * | |
8 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; version 2 of the License. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | * For the avoidance of doubt, and except that if any non-GPL license | |
24 | * choice is available it will apply instead, Sun elects to use only | |
25 | * the General Public License version 2 (GPLv2) at this time for any | |
26 | * software where a choice of GPL license versions is made | |
27 | * available with the language indicating that GPLv2 or any later version | |
28 | * may be used, or where a choice of which version of the GPL is applied is | |
29 | * otherwise unspecified. | |
30 | * | |
31 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
32 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
33 | * have any questions. | |
34 | * | |
35 | * | |
36 | * ========== Copyright Header End ============================================ | |
37 | */ | |
38 | ||
39 | /********************************************************** | |
40 | *********************************************************** | |
41 | ||
42 | Project : Niu | |
43 | ||
44 | File name : niu_ipp_sum_lib.h | |
45 | ||
46 | Module(s) name : | |
47 | Original: : sum_lib.h main.1, label: | |
48 | ||
49 | Parent modules : niu_ipp_sum.v | |
50 | ||
51 | Child modules : niu_ipp_sum_lib.v, | |
52 | ||
53 | Author's name : George Chu | |
54 | ||
55 | Date : March. 2004 | |
56 | ||
57 | Description : Control logic od the checksum. | |
58 | ||
59 | Synthesis Notes: | |
60 | ||
61 | Modification History: | |
62 | ||
63 | Date Description | |
64 | ---- ----------- | |
65 | ||
66 | ************************************************************ | |
67 | ***********************************************************/ | |
68 | // ------------- define parameters ----- (George Chu, rel.01, 12/12/01) ----- | |
69 | ||
70 | // ----- cksum state machine --- 7654 3210 ----- | |
71 | `define NIU_IPP_IDLE_CKSUM 9'b0_0000_0001 | |
72 | `define NIU_IPP_CKSUM_D1 9'b0_0000_0010 // | |
73 | `define NIU_IPP_CKSUM_D2 9'b0_0000_0100 // | |
74 | `define NIU_IPP_CKSUM_DT 9'b0_0000_1000 | |
75 | `define NIU_IPP_CKSUM_W0 9'b0_0100_0000 | |
76 | `define NIU_IPP_CKSUM_W1 9'b0_0101_0000 | |
77 | `define NIU_IPP_CKSUM_W2 9'b0_0110_0000 | |
78 | `define NIU_IPP_CKSUM_W3 9'b0_0111_0000 | |
79 | `define NIU_IPP_CKSUM_W4 9'b0_1000_0000 | |
80 | `define NIU_IPP_CKSUM_UL 9'b1_0000_0000 | |
81 | ||
82 | // ----- crc32 state machine --- 7654 3210 ----- | |
83 | `define NIU_IPP_IDLE_CRC 8'b0000_0001 | |
84 | `define NIU_IPP_CRC_D1 8'b0000_0010 // | |
85 | `define NIU_IPP_CRC_D2 8'b0000_0100 // | |
86 | `define NIU_IPP_CRC_DT 8'b0000_1000 | |
87 | `define NIU_IPP_CRC_W0 8'b0100_0000 | |
88 | `define NIU_IPP_CRC_W1 8'b0101_0000 | |
89 | `define NIU_IPP_CRC_W2 8'b0110_0000 | |
90 | `define NIU_IPP_CRC_W3 8'b0111_0000 | |
91 | `define NIU_IPP_CRC_W4 8'b1000_0000 |