| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: ncu_io_sample.vrh |
| 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 | sample ncu_mio_intf_req_cov (ncu_cov_ios.ncu_mio_ssi_mosi) |
| 36 | { |
| 37 | state mio_req (1'b1); |
| 38 | } |
| 39 | sample ncu_mio_intf_res_cov (ncu_cov_ios.mio_ncu_ssi_miso) |
| 40 | { |
| 41 | state mio_res (1'b1); |
| 42 | } |
| 43 | sample ncu_mio_intf_int_cov (ncu_cov_ios.mio_ncu_ext_int_l) |
| 44 | { |
| 45 | state mio_int (1'b1); |
| 46 | } |
| 47 | |
| 48 | |
| 49 | sample ncu_siu_intf_req_cnt (ncu_siu_req_cnt) |
| 50 | { |
| 51 | m_state REQ_ASSERT (1:5) ; |
| 52 | } |
| 53 | |
| 54 | sample ssi_ufsm_cov (ncu_cov_ios.if_sm) |
| 55 | { |
| 56 | state IDLE (2'b00) ; |
| 57 | state ACPT (2'b01) ; |
| 58 | // state DROP (2'b10) ; |
| 59 | trans IDLE_to_ACPT ("IDLE" -> "ACPT"); |
| 60 | // trans IDLE_to_DROP ("IDLE" -> "DROP"); |
| 61 | trans ACPT_to_IDLE ("ACPT" -> "IDLE"); |
| 62 | // trans DROP_to_IDLE ("DROP" -> "IDLE"); |
| 63 | } |
| 64 | |
| 65 | sample ssi_fsm_cov (ncu_cov_ios.ssi_sm) |
| 66 | { |
| 67 | state IDLE (3'b000) ; |
| 68 | state REQ (3'b001) ; |
| 69 | state WDATA (3'b011) ; |
| 70 | state REQ_PAR (3'b101) ; |
| 71 | state ACK (3'b111) ; |
| 72 | state RDATA (3'b110) ; |
| 73 | state ACK_PAR (3'b010) ; |
| 74 | trans IDLE_to_REQ ("IDLE" -> "REQ"); |
| 75 | trans REQ_to_REQ_PAR ("REQ" -> "REQ_PAR"); |
| 76 | trans REQ_to_WDATA ("REQ" -> "WDATA"); |
| 77 | trans WDATA_to_REQ_PAR ("WDATA" -> "REQ_PAR"); |
| 78 | trans REQ_PAR_to_SSI_ACK ("REQ_PAR" -> "ACK"); |
| 79 | trans ACK_to_RDATA ("ACK" -> "RDATA"); |
| 80 | trans ACK_to_ACK_PAR ("ACK" -> "ACK_PAR"); |
| 81 | trans ACK_to_IDLE ("ACK" -> "IDLE"); |
| 82 | trans RDATA_to_ACK_AAR ("RDATA" -> "ACK_PAR"); |
| 83 | trans ACK_PAR_to_IDLE ("ACK_PAR" -> "IDLE"); |
| 84 | } |
| 85 | sample ssi_scksel_cov (ncu_cov_ios.ssi_scksel) |
| 86 | { |
| 87 | state CLK_DIV8 (2'b00) if(ncu_io_sample_flag); |
| 88 | state CLK_DIV4 (2'b10) if(ncu_io_sample_flag); |
| 89 | } |