1 | /**************************************************************************************** |
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2 | * |
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3 | * Disclaimer This software code and all associated documentation, comments or other |
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4 | * of Warranty: information (collectively "Software") is provided "AS IS" without |
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5 | * warranty of any kind. MICRON TECHNOLOGY, INC. ("MTI") EXPRESSLY |
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6 | * DISCLAIMS ALL WARRANTIES EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED |
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7 | * TO, NONINFRINGEMENT OF THIRD PARTY RIGHTS, AND ANY IMPLIED WARRANTIES |
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8 | * OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. MTI DOES NOT |
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9 | * WARRANT THAT THE SOFTWARE WILL MEET YOUR REQUIREMENTS, OR THAT THE |
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10 | * OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE. |
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11 | * FURTHERMORE, MTI DOES NOT MAKE ANY REPRESENTATIONS REGARDING THE USE OR |
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12 | * THE RESULTS OF THE USE OF THE SOFTWARE IN TERMS OF ITS CORRECTNESS, |
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13 | * ACCURACY, RELIABILITY, OR OTHERWISE. THE ENTIRE RISK ARISING OUT OF USE |
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14 | * OR PERFORMANCE OF THE SOFTWARE REMAINS WITH YOU. IN NO EVENT SHALL MTI, |
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15 | * ITS AFFILIATED COMPANIES OR THEIR SUPPLIERS BE LIABLE FOR ANY DIRECT, |
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16 | * INDIRECT, CONSEQUENTIAL, INCIDENTAL, OR SPECIAL DAMAGES (INCLUDING, |
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17 | * WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, |
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18 | * OR LOSS OF INFORMATION) ARISING OUT OF YOUR USE OF OR INABILITY TO USE |
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19 | * THE SOFTWARE, EVEN IF MTI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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20 | * DAMAGES. Because some jurisdictions prohibit the exclusion or |
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21 | * limitation of liability for consequential or incidental damages, the |
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22 | * above limitation may not apply to you. |
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23 | * |
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24 | * Copyright 2003 Micron Technology, Inc. All rights reserved. |
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25 | * |
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26 | ****************************************************************************************/ |
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27 | |
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28 | // Timing parameters based on Speed Grade |
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29 | |
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30 | // SYMBOL UNITS DESCRIPTION |
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31 | // ------ ----- ----------- |
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32 | `ifdef x256Mb |
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33 | |
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34 | `ifdef sg187E |
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35 | parameter TCK_MIN = 1875; // tCK ps Minimum Clock Cycle Time |
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36 | parameter TJIT_PER = 90; // tJIT(per) ps Period JItter |
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37 | parameter TJIT_DUTY = 75; // tJIT(duty) ps Half Period Jitter |
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38 | parameter TJIT_CC = 180; // tJIT(cc) ps Cycle to Cycle jitter |
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39 | parameter TERR_2PER = 132; // tERR(nper) ps Accumulated Error (2-cycle) |
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40 | parameter TERR_3PER = 157; // tERR(nper) ps Accumulated Error (3-cycle) |
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41 | parameter TERR_4PER = 175; // tERR(nper) ps Accumulated Error (4-cycle) |
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42 | parameter TERR_5PER = 188; // tERR(nper) ps Accumulated Error (5-cycle) |
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43 | parameter TERR_N1PER = 250; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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44 | parameter TERR_N2PER = 425; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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45 | parameter TQHS = 250; // tQHS ps Data hold skew factor |
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46 | parameter TAC = 350; // tAC ps DQ output access time from CK/CK# |
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47 | parameter TDS = 0; // tDS ps DQ and DM input setup time relative to DQS |
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48 | parameter TDH = 75; // tDH ps DQ and DM input hold time relative to DQS |
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49 | parameter TDQSCK = 300; // tDQSCK ps DQS output access time from CK/CK# |
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50 | parameter TDQSQ = 175; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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51 | parameter TIS = 125; // tIS ps Input Setup Time |
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52 | parameter TIH = 200; // tIH ps Input Hold Time |
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53 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
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54 | parameter TRCD = 13125; // tRCD ps Active to Read/Write command time |
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55 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
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56 | parameter TRP = 13125; // tRP ps Precharge command period |
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57 | parameter TRPA = 13125; // tRPA ps Precharge All period |
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58 | parameter TXARDS = 10; // tXARDS tCK Exit low power active power down to a read command |
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59 | parameter TXARD = 3; // tXARD tCK Exit active power down to a read command |
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60 | parameter TXP = 3; // tXP tCK Exit power down to a non-read command |
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61 | parameter TANPD = 4; // tANPD tCK ODT to power-down entry latency |
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62 | parameter TAXPD = 11; // tAXPD tCK ODT power-down exit latency |
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63 | parameter CL_TIME = 13125; // CL ps Minimum CAS Latency |
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64 | `else `ifdef sg25E |
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65 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
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66 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
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67 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
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68 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
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69 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
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70 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
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71 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
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72 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
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73 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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74 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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75 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
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76 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
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77 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
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78 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
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79 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
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80 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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81 | parameter TIS = 175; // tIS ps Input Setup Time |
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82 | parameter TIH = 250; // tIH ps Input Hold Time |
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83 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
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84 | parameter TRCD = 12500; // tRCD ps Active to Read/Write command time |
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85 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
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86 | parameter TRP = 12500; // tRP ps Precharge command period |
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87 | parameter TRPA = 12500; // tRPA ps Precharge All period |
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88 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
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89 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
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90 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
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91 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
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92 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
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93 | parameter CL_TIME = 12500; // CL ps Minimum CAS Latency |
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94 | `else `ifdef sg25 |
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95 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
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96 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
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97 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
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98 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
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99 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
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100 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
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101 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
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102 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
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103 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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104 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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105 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
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106 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
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107 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
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108 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
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109 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
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110 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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111 | parameter TIS = 175; // tIS ps Input Setup Time |
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112 | parameter TIH = 250; // tIH ps Input Hold Time |
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113 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
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114 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
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115 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
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116 | parameter TRP = 15000; // tRP ps Precharge command period |
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117 | parameter TRPA = 15000; // tRPA ps Precharge All period |
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118 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
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119 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
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120 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
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121 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
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122 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
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123 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
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124 | `else `ifdef sg3E |
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125 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
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126 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
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127 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
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128 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
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129 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
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130 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
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131 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
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132 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
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133 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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134 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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135 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
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136 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
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137 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
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138 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
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139 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
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140 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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141 | parameter TIS = 200; // tIS ps Input Setup Time |
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142 | parameter TIH = 275; // tIH ps Input Hold Time |
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143 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
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144 | parameter TRCD = 12000; // tRCD ps Active to Read/Write command time |
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145 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
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146 | parameter TRP = 12000; // tRP ps Precharge command period |
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147 | parameter TRPA = 12000; // tRPA ps Precharge All period |
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148 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
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149 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
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150 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
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151 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
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152 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
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153 | parameter CL_TIME = 12000; // CL ps Minimum CAS Latency |
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154 | `else `ifdef sg3 |
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155 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
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156 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
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157 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
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158 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
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159 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
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160 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
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161 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
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162 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
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163 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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164 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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165 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
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166 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
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167 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
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168 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
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169 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
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170 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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171 | parameter TIS = 200; // tIS ps Input Setup Time |
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172 | parameter TIH = 275; // tIH ps Input Hold Time |
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173 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
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174 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
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175 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
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176 | parameter TRP = 15000; // tRP ps Precharge command period |
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177 | parameter TRPA = 15000; // tRPA ps Precharge All period |
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178 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
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179 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
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180 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
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181 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
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182 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
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183 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
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184 | `else `ifdef sg37E |
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185 | parameter TCK_MIN = 3750; // tCK ps Minimum Clock Cycle Time |
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186 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
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187 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
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188 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
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189 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
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190 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
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191 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
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192 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
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193 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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194 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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195 | parameter TQHS = 400; // tQHS ps Data hold skew factor |
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196 | parameter TAC = 500; // tAC ps DQ output access time from CK/CK# |
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197 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
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198 | parameter TDH = 225; // tDH ps DQ and DM input hold time relative to DQS |
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199 | parameter TDQSCK = 450; // tDQSCK ps DQS output access time from CK/CK# |
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200 | parameter TDQSQ = 300; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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201 | parameter TIS = 250; // tIS ps Input Setup Time |
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202 | parameter TIH = 375; // tIH ps Input Hold Time |
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203 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
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204 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
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205 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
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206 | parameter TRP = 15000; // tRP ps Precharge command period |
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207 | parameter TRPA = 15000; // tRPA ps Precharge All period |
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208 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
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209 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
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210 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
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211 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
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212 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
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213 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
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214 | `else `define sg5E |
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215 | parameter TCK_MIN = 5000; // tCK ps Minimum Clock Cycle Time |
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216 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
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217 | parameter TJIT_DUTY = 150; // tJIT(duty) ps Half Period Jitter |
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218 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
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219 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
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220 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
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221 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
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222 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
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223 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
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224 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
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225 | parameter TQHS = 450; // tQHS ps Data hold skew factor |
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226 | parameter TAC = 600; // tAC ps DQ output access time from CK/CK# |
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227 | parameter TDS = 150; // tDS ps DQ and DM input setup time relative to DQS |
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228 | parameter TDH = 275; // tDH ps DQ and DM input hold time relative to DQS |
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229 | parameter TDQSCK = 500; // tDQSCK ps DQS output access time from CK/CK# |
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230 | parameter TDQSQ = 350; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
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231 | parameter TIS = 350; // tIS ps Input Setup Time |
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232 | parameter TIH = 475; // tIH ps Input Hold Time |
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233 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
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234 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
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235 | parameter TWTR = 10000; // tWTR ps Write to Read command delay |
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236 | parameter TRP = 15000; // tRP ps Precharge command period |
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237 | parameter TRPA = 15000; // tRPA ps Precharge All period |
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238 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
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239 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
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240 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
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241 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
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242 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
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243 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
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244 | `endif `endif `endif `endif `endif `endif |
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245 | |
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246 | `ifdef x16 |
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247 | `ifdef sg187E |
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248 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
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249 | `else `ifdef sg25E |
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250 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
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251 | `else `ifdef sg25 |
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252 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
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253 | `else // sg3E, sg3, sg37E, sg5E |
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254 | parameter TFAW = 50000; // tFAW ps Four Bank Activate window |
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255 | `endif `endif `endif |
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256 | `else // x4, x8 |
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257 | `ifdef sg187E |
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258 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
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259 | `else `ifdef sg25E |
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260 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
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261 | `else `ifdef sg25 |
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262 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
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263 | `else // sg3E, sg3, sg37E, sg5E |
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264 | parameter TFAW = 37500; // tFAW ps Four Bank Activate window |
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265 | `endif `endif `endif |
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266 | `endif |
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267 | |
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268 | // Timing Parameters |
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269 | |
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270 | // Mode Register |
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271 | parameter AL_MIN = 0; // AL tCK Minimum Additive Latency |
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272 | parameter AL_MAX = 6; // AL tCK Maximum Additive Latency |
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273 | parameter CL_MIN = 3; // CL tCK Minimum CAS Latency |
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274 | parameter CL_MAX = 7; // CL tCK Maximum CAS Latency |
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275 | parameter WR_MIN = 2; // WR tCK Minimum Write Recovery |
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276 | parameter WR_MAX = 8; // WR tCK Maximum Write Recovery |
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277 | parameter BL_MIN = 4; // BL tCK Minimum Burst Length |
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278 | parameter BL_MAX = 8; // BL tCK Minimum Burst Length |
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279 | // Clock |
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280 | parameter TCK_MAX = 8000; // tCK ps Maximum Clock Cycle Time |
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281 | parameter TCH_MIN = 0.48; // tCH tCK Minimum Clock High-Level Pulse Width |
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282 | parameter TCH_MAX = 0.52; // tCH tCK Maximum Clock High-Level Pulse Width |
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283 | parameter TCL_MIN = 0.48; // tCL tCK Minimum Clock Low-Level Pulse Width |
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284 | parameter TCL_MAX = 0.52; // tCL tCK Maximum Clock Low-Level Pulse Width |
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285 | // Data |
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286 | parameter TLZ = TAC; // tLZ ps Data-out low-impedance window from CK/CK# |
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287 | parameter THZ = TAC; // tHZ ps Data-out high impedance window from CK/CK# |
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288 | parameter TDIPW = 0.35; // tDIPW tCK DQ and DM input Pulse Width |
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289 | // Data Strobe |
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290 | parameter TDQSH = 0.35; // tDQSH tCK DQS input High Pulse Width |
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291 | parameter TDQSL = 0.35; // tDQSL tCK DQS input Low Pulse Width |
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292 | parameter TDSS = 0.20; // tDSS tCK DQS falling edge to CLK rising (setup time) |
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293 | parameter TDSH = 0.20; // tDSH tCK DQS falling edge from CLK rising (hold time) |
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294 | parameter TWPRE = 0.35; // tWPRE tCK DQS Write Preamble |
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295 | parameter TWPST = 0.40; // tWPST tCK DQS Write Postamble |
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296 | parameter TDQSS = 0.25; // tDQSS tCK Rising clock edge to DQS/DQS# latching transition |
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297 | // Command and Address |
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298 | parameter TIPW = 0.6; // tIPW tCK Control and Address input Pulse Width |
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299 | parameter TCCD = 2; // tCCD tCK Cas to Cas command delay |
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300 | parameter TRAS_MIN = 40000; // tRAS ps Minimum Active to Precharge command time |
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301 | parameter TRAS_MAX =70000000; // tRAS ps Maximum Active to Precharge command time |
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302 | parameter TRTP = 7500; // tRTP ps Read to Precharge command delay |
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303 | parameter TWR = 15000; // tWR ps Write recovery time |
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304 | parameter TMRD = 2; // tMRD tCK Load Mode Register command cycle time |
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305 | parameter TDLLK = 200; // tDLLK tCK DLL locking time |
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306 | // Refresh |
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307 | parameter TRFC_MIN = 75000; // tRFC ps Refresh to Refresh Command interval minimum value |
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308 | parameter TRFC_MAX =70000000; // tRFC ps Refresh to Refresh Command Interval maximum value |
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309 | // Self Refresh |
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310 | parameter TXSNR = TRFC_MIN + 10000; // tXSNR ps Exit self refesh to a non-read command |
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311 | parameter TXSRD = 200; // tXSRD tCK Exit self refresh to a read command |
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312 | parameter TISXR = TIS; // tISXR ps CKE setup time during self refresh exit. |
---|
313 | // ODT |
---|
314 | parameter TAOND = 2; // tAOND tCK ODT turn-on delay |
---|
315 | parameter TAOFD = 2.5; // tAOFD tCK ODT turn-off delay |
---|
316 | parameter TAONPD = 2000; // tAONPD ps ODT turn-on (precharge power-down mode) |
---|
317 | parameter TAOFPD = 2000; // tAOFPD ps ODT turn-off (precharge power-down mode) |
---|
318 | parameter TMOD = 12000; // tMOD ps ODT enable in EMR to ODT pin transition |
---|
319 | // Power Down |
---|
320 | parameter TCKE = 3; // tCKE tCK CKE minimum high or low pulse width |
---|
321 | |
---|
322 | // Size Parameters based on Part Width |
---|
323 | |
---|
324 | `ifdef x4 |
---|
325 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
326 | parameter ROW_BITS = 13; // Number of Address bits |
---|
327 | parameter COL_BITS = 11; // Number of Column bits |
---|
328 | parameter DQ_BITS = 4; // Number of Data bits |
---|
329 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
330 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
331 | `else `ifdef x8 |
---|
332 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
333 | parameter ROW_BITS = 13; // Number of Address bits |
---|
334 | parameter COL_BITS = 10; // Number of Column bits |
---|
335 | parameter DQ_BITS = 8; // Number of Data bits |
---|
336 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
337 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
338 | `else `define x16 |
---|
339 | parameter DM_BITS = 2; // Number of Data Mask bits |
---|
340 | parameter ROW_BITS = 13; // Number of Address bits |
---|
341 | parameter COL_BITS = 9; // Number of Column bits |
---|
342 | parameter DQ_BITS = 16; // Number of Data bits |
---|
343 | parameter DQS_BITS = 2; // Number of Dqs bits |
---|
344 | parameter TRRD = 10000; // tRRD Active bank a to Active bank b command time |
---|
345 | `endif `endif |
---|
346 | |
---|
347 | `ifdef QUAD_RANK |
---|
348 | `define DUAL_RANK // also define DUAL_RANK |
---|
349 | parameter CS_BITS = 4; // Number of Chip Select Bits |
---|
350 | parameter RANKS = 4; // Number of Chip Select Bits |
---|
351 | `else `ifdef DUAL_RANK |
---|
352 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
353 | parameter RANKS = 2; // Number of Chip Select Bits |
---|
354 | `else |
---|
355 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
356 | parameter RANKS = 1; // Number of Chip Select Bits |
---|
357 | `endif `endif |
---|
358 | |
---|
359 | // Size Parameters |
---|
360 | parameter BA_BITS = 2; // Set this parmaeter to control how many Bank Address bits |
---|
361 | parameter ADDR_BITS = 13; // Address Bits |
---|
362 | parameter MEM_BITS = 10; // Number of write data bursts can be stored in memory. The default is 2^10=1024. |
---|
363 | parameter AP = 10; // the address bit that controls auto-precharge and precharge-all |
---|
364 | parameter BL_BITS = 3; // the number of bits required to count to MAX_BL |
---|
365 | parameter BO_BITS = 2; // the number of Burst Order Bits |
---|
366 | |
---|
367 | `else `ifdef x512Mb |
---|
368 | |
---|
369 | `ifdef sg187E |
---|
370 | parameter TCK_MIN = 1875; // tCK ps Minimum Clock Cycle Time |
---|
371 | parameter TJIT_PER = 90; // tJIT(per) ps Period JItter |
---|
372 | parameter TJIT_DUTY = 75; // tJIT(duty) ps Half Period Jitter |
---|
373 | parameter TJIT_CC = 180; // tJIT(cc) ps Cycle to Cycle jitter |
---|
374 | parameter TERR_2PER = 132; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
375 | parameter TERR_3PER = 157; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
376 | parameter TERR_4PER = 175; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
377 | parameter TERR_5PER = 188; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
378 | parameter TERR_N1PER = 250; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
379 | parameter TERR_N2PER = 425; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
380 | parameter TQHS = 250; // tQHS ps Data hold skew factor |
---|
381 | parameter TAC = 350; // tAC ps DQ output access time from CK/CK# |
---|
382 | parameter TDS = 0; // tDS ps DQ and DM input setup time relative to DQS |
---|
383 | parameter TDH = 75; // tDH ps DQ and DM input hold time relative to DQS |
---|
384 | parameter TDQSCK = 300; // tDQSCK ps DQS output access time from CK/CK# |
---|
385 | parameter TDQSQ = 175; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
386 | parameter TIS = 125; // tIS ps Input Setup Time |
---|
387 | parameter TIH = 200; // tIH ps Input Hold Time |
---|
388 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
---|
389 | parameter TRCD = 13125; // tRCD ps Active to Read/Write command time |
---|
390 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
391 | parameter TRP = 13125; // tRP ps Precharge command period |
---|
392 | parameter TRPA = 13125; // tRPA ps Precharge All period |
---|
393 | parameter TXARDS = 10; // tXARDS tCK Exit low power active power down to a read command |
---|
394 | parameter TXARD = 3; // tXARD tCK Exit active power down to a read command |
---|
395 | parameter TXP = 3; // tXP tCK Exit power down to a non-read command |
---|
396 | parameter TANPD = 4; // tANPD tCK ODT to power-down entry latency |
---|
397 | parameter TAXPD = 11; // tAXPD tCK ODT power-down exit latency |
---|
398 | parameter CL_TIME = 13125; // CL ps Minimum CAS Latency |
---|
399 | `else `ifdef sg25E |
---|
400 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
---|
401 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
---|
402 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
---|
403 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
---|
404 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
405 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
406 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
407 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
408 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
409 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
410 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
---|
411 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
---|
412 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
---|
413 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
---|
414 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
---|
415 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
416 | parameter TIS = 175; // tIS ps Input Setup Time |
---|
417 | parameter TIH = 250; // tIH ps Input Hold Time |
---|
418 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
419 | parameter TRCD = 12500; // tRCD ps Active to Read/Write command time |
---|
420 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
421 | parameter TRP = 12500; // tRP ps Precharge command period |
---|
422 | parameter TRPA = 12500; // tRPA ps Precharge All period |
---|
423 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
---|
424 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
425 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
426 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
427 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
---|
428 | parameter CL_TIME = 12500; // CL ps Minimum CAS Latency |
---|
429 | `else `ifdef sg25 |
---|
430 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
---|
431 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
---|
432 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
---|
433 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
---|
434 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
435 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
436 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
437 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
438 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
439 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
440 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
---|
441 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
---|
442 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
---|
443 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
---|
444 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
---|
445 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
446 | parameter TIS = 175; // tIS ps Input Setup Time |
---|
447 | parameter TIH = 250; // tIH ps Input Hold Time |
---|
448 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
449 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
450 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
451 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
452 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
453 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
---|
454 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
455 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
456 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
457 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
---|
458 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
459 | `else `ifdef sg3E |
---|
460 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
---|
461 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
462 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
463 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
464 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
465 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
466 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
467 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
468 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
469 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
470 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
---|
471 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
---|
472 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
473 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
---|
474 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
---|
475 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
476 | parameter TIS = 200; // tIS ps Input Setup Time |
---|
477 | parameter TIH = 275; // tIH ps Input Hold Time |
---|
478 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
---|
479 | parameter TRCD = 12000; // tRCD ps Active to Read/Write command time |
---|
480 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
481 | parameter TRP = 12000; // tRP ps Precharge command period |
---|
482 | parameter TRPA = 12000; // tRPA ps Precharge All period |
---|
483 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
---|
484 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
485 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
486 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
487 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
488 | parameter CL_TIME = 12000; // CL ps Minimum CAS Latency |
---|
489 | `else `ifdef sg3 |
---|
490 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
---|
491 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
492 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
493 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
494 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
495 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
496 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
497 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
498 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
499 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
500 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
---|
501 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
---|
502 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
503 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
---|
504 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
---|
505 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
506 | parameter TIS = 200; // tIS ps Input Setup Time |
---|
507 | parameter TIH = 275; // tIH ps Input Hold Time |
---|
508 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
509 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
510 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
511 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
512 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
513 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
---|
514 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
515 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
516 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
517 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
518 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
519 | `else `ifdef sg37E |
---|
520 | parameter TCK_MIN = 3750; // tCK ps Minimum Clock Cycle Time |
---|
521 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
522 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
523 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
524 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
525 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
526 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
527 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
528 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
529 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
530 | parameter TQHS = 400; // tQHS ps Data hold skew factor |
---|
531 | parameter TAC = 500; // tAC ps DQ output access time from CK/CK# |
---|
532 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
533 | parameter TDH = 225; // tDH ps DQ and DM input hold time relative to DQS |
---|
534 | parameter TDQSCK = 450; // tDQSCK ps DQS output access time from CK/CK# |
---|
535 | parameter TDQSQ = 300; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
536 | parameter TIS = 250; // tIS ps Input Setup Time |
---|
537 | parameter TIH = 375; // tIH ps Input Hold Time |
---|
538 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
539 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
540 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
541 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
542 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
543 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
---|
544 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
545 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
546 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
547 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
548 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
549 | `else `define sg5E |
---|
550 | parameter TCK_MIN = 5000; // tCK ps Minimum Clock Cycle Time |
---|
551 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
552 | parameter TJIT_DUTY = 150; // tJIT(duty) ps Half Period Jitter |
---|
553 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
554 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
555 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
556 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
557 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
558 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
559 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
560 | parameter TQHS = 450; // tQHS ps Data hold skew factor |
---|
561 | parameter TAC = 600; // tAC ps DQ output access time from CK/CK# |
---|
562 | parameter TDS = 150; // tDS ps DQ and DM input setup time relative to DQS |
---|
563 | parameter TDH = 275; // tDH ps DQ and DM input hold time relative to DQS |
---|
564 | parameter TDQSCK = 500; // tDQSCK ps DQS output access time from CK/CK# |
---|
565 | parameter TDQSQ = 350; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
566 | parameter TIS = 350; // tIS ps Input Setup Time |
---|
567 | parameter TIH = 475; // tIH ps Input Hold Time |
---|
568 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
569 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
570 | parameter TWTR = 10000; // tWTR ps Write to Read command delay |
---|
571 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
572 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
573 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
---|
574 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
575 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
576 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
577 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
578 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
579 | `endif `endif `endif `endif `endif `endif |
---|
580 | |
---|
581 | `ifdef x16 |
---|
582 | `ifdef sg187E |
---|
583 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
584 | `else `ifdef sg25E |
---|
585 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
586 | `else `ifdef sg25 |
---|
587 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
588 | `else // sg3E, sg3, sg37E, sg5E |
---|
589 | parameter TFAW = 50000; // tFAW ps Four Bank Activate window |
---|
590 | `endif `endif `endif |
---|
591 | `else // x4, x8 |
---|
592 | `ifdef sg187E |
---|
593 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
594 | `else `ifdef sg25E |
---|
595 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
596 | `else `ifdef sg25 |
---|
597 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
598 | `else // sg3E, sg3, sg37E, sg5E |
---|
599 | parameter TFAW = 37500; // tFAW ps Four Bank Activate window |
---|
600 | `endif `endif `endif |
---|
601 | `endif |
---|
602 | |
---|
603 | // Timing Parameters |
---|
604 | |
---|
605 | // Mode Register |
---|
606 | parameter AL_MIN = 0; // AL tCK Minimum Additive Latency |
---|
607 | parameter AL_MAX = 6; // AL tCK Maximum Additive Latency |
---|
608 | parameter CL_MIN = 3; // CL tCK Minimum CAS Latency |
---|
609 | parameter CL_MAX = 7; // CL tCK Maximum CAS Latency |
---|
610 | parameter WR_MIN = 2; // WR tCK Minimum Write Recovery |
---|
611 | parameter WR_MAX = 8; // WR tCK Maximum Write Recovery |
---|
612 | parameter BL_MIN = 4; // BL tCK Minimum Burst Length |
---|
613 | parameter BL_MAX = 8; // BL tCK Minimum Burst Length |
---|
614 | // Clock |
---|
615 | parameter TCK_MAX = 8000; // tCK ps Maximum Clock Cycle Time |
---|
616 | parameter TCH_MIN = 0.48; // tCH tCK Minimum Clock High-Level Pulse Width |
---|
617 | parameter TCH_MAX = 0.52; // tCH tCK Maximum Clock High-Level Pulse Width |
---|
618 | parameter TCL_MIN = 0.48; // tCL tCK Minimum Clock Low-Level Pulse Width |
---|
619 | parameter TCL_MAX = 0.52; // tCL tCK Maximum Clock Low-Level Pulse Width |
---|
620 | // Data |
---|
621 | parameter TLZ = TAC; // tLZ ps Data-out low-impedance window from CK/CK# |
---|
622 | parameter THZ = TAC; // tHZ ps Data-out high impedance window from CK/CK# |
---|
623 | parameter TDIPW = 0.35; // tDIPW tCK DQ and DM input Pulse Width |
---|
624 | // Data Strobe |
---|
625 | parameter TDQSH = 0.35; // tDQSH tCK DQS input High Pulse Width |
---|
626 | parameter TDQSL = 0.35; // tDQSL tCK DQS input Low Pulse Width |
---|
627 | parameter TDSS = 0.20; // tDSS tCK DQS falling edge to CLK rising (setup time) |
---|
628 | parameter TDSH = 0.20; // tDSH tCK DQS falling edge from CLK rising (hold time) |
---|
629 | parameter TWPRE = 0.35; // tWPRE tCK DQS Write Preamble |
---|
630 | parameter TWPST = 0.40; // tWPST tCK DQS Write Postamble |
---|
631 | parameter TDQSS = 0.25; // tDQSS tCK Rising clock edge to DQS/DQS# latching transition |
---|
632 | // Command and Address |
---|
633 | parameter TIPW = 0.6; // tIPW tCK Control and Address input Pulse Width |
---|
634 | parameter TCCD = 2; // tCCD tCK Cas to Cas command delay |
---|
635 | parameter TRAS_MIN = 40000; // tRAS ps Minimum Active to Precharge command time |
---|
636 | parameter TRAS_MAX =70000000; // tRAS ps Maximum Active to Precharge command time |
---|
637 | parameter TRTP = 7500; // tRTP ps Read to Precharge command delay |
---|
638 | parameter TWR = 15000; // tWR ps Write recovery time |
---|
639 | parameter TMRD = 2; // tMRD tCK Load Mode Register command cycle time |
---|
640 | parameter TDLLK = 200; // tDLLK tCK DLL locking time |
---|
641 | // Refresh |
---|
642 | parameter TRFC_MIN = 105000; // tRFC ps Refresh to Refresh Command interval minimum value |
---|
643 | parameter TRFC_MAX =70000000; // tRFC ps Refresh to Refresh Command Interval maximum value |
---|
644 | // Self Refresh |
---|
645 | parameter TXSNR = TRFC_MIN + 10000; // tXSNR ps Exit self refesh to a non-read command |
---|
646 | parameter TXSRD = 200; // tXSRD tCK Exit self refresh to a read command |
---|
647 | parameter TISXR = TIS; // tISXR ps CKE setup time during self refresh exit. |
---|
648 | // ODT |
---|
649 | parameter TAOND = 2; // tAOND tCK ODT turn-on delay |
---|
650 | parameter TAOFD = 2.5; // tAOFD tCK ODT turn-off delay |
---|
651 | parameter TAONPD = 2000; // tAONPD ps ODT turn-on (precharge power-down mode) |
---|
652 | parameter TAOFPD = 2000; // tAOFPD ps ODT turn-off (precharge power-down mode) |
---|
653 | parameter TMOD = 12000; // tMOD ps ODT enable in EMR to ODT pin transition |
---|
654 | // Power Down |
---|
655 | parameter TCKE = 3; // tCKE tCK CKE minimum high or low pulse width |
---|
656 | |
---|
657 | // Size Parameters based on Part Width |
---|
658 | |
---|
659 | `ifdef x4 |
---|
660 | parameter ADDR_BITS = 14; // Address Bits |
---|
661 | parameter ROW_BITS = 14; // Number of Address bits |
---|
662 | parameter COL_BITS = 11; // Number of Column bits |
---|
663 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
664 | parameter DQ_BITS = 4; // Number of Data bits |
---|
665 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
666 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
667 | `else `ifdef x8 |
---|
668 | parameter ADDR_BITS = 14; // Address Bits |
---|
669 | parameter ROW_BITS = 14; // Number of Address bits |
---|
670 | parameter COL_BITS = 10; // Number of Column bits |
---|
671 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
672 | parameter DQ_BITS = 8; // Number of Data bits |
---|
673 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
674 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
675 | `else `define x16 |
---|
676 | parameter ADDR_BITS = 13; // Address Bits |
---|
677 | parameter ROW_BITS = 13; // Number of Address bits |
---|
678 | parameter COL_BITS = 10; // Number of Column bits |
---|
679 | parameter DM_BITS = 2; // Number of Data Mask bits |
---|
680 | parameter DQ_BITS = 16; // Number of Data bits |
---|
681 | parameter DQS_BITS = 2; // Number of Dqs bits |
---|
682 | parameter TRRD = 10000; // tRRD Active bank a to Active bank b command time |
---|
683 | `endif `endif |
---|
684 | |
---|
685 | `ifdef QUAD_RANK |
---|
686 | `define DUAL_RANK // also define DUAL_RANK |
---|
687 | parameter CS_BITS = 4; // Number of Chip Select Bits |
---|
688 | parameter RANKS = 4; // Number of Chip Select Bits |
---|
689 | `else `ifdef DUAL_RANK |
---|
690 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
691 | parameter RANKS = 2; // Number of Chip Select Bits |
---|
692 | `else |
---|
693 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
694 | parameter RANKS = 1; // Number of Chip Select Bits |
---|
695 | `endif `endif |
---|
696 | |
---|
697 | // Size Parameters |
---|
698 | parameter BA_BITS = 2; // Set this parmaeter to control how many Bank Address bits |
---|
699 | parameter MEM_BITS = 10; // Number of write data bursts can be stored in memory. The default is 2^10=1024. |
---|
700 | parameter AP = 10; // the address bit that controls auto-precharge and precharge-all |
---|
701 | parameter BL_BITS = 3; // the number of bits required to count to MAX_BL |
---|
702 | parameter BO_BITS = 2; // the number of Burst Order Bits |
---|
703 | |
---|
704 | `else `ifdef x1Gb |
---|
705 | |
---|
706 | `ifdef sg187E |
---|
707 | parameter TCK_MIN = 1875; // tCK ps Minimum Clock Cycle Time |
---|
708 | parameter TJIT_PER = 90; // tJIT(per) ps Period JItter |
---|
709 | parameter TJIT_DUTY = 75; // tJIT(duty) ps Half Period Jitter |
---|
710 | parameter TJIT_CC = 180; // tJIT(cc) ps Cycle to Cycle jitter |
---|
711 | parameter TERR_2PER = 132; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
712 | parameter TERR_3PER = 157; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
713 | parameter TERR_4PER = 175; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
714 | parameter TERR_5PER = 188; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
715 | parameter TERR_N1PER = 250; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
716 | parameter TERR_N2PER = 425; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
717 | parameter TQHS = 250; // tQHS ps Data hold skew factor |
---|
718 | parameter TAC = 350; // tAC ps DQ output access time from CK/CK# |
---|
719 | parameter TDS = 0; // tDS ps DQ and DM input setup time relative to DQS |
---|
720 | parameter TDH = 75; // tDH ps DQ and DM input hold time relative to DQS |
---|
721 | parameter TDQSCK = 300; // tDQSCK ps DQS output access time from CK/CK# |
---|
722 | parameter TDQSQ = 175; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
723 | parameter TIS = 125; // tIS ps Input Setup Time |
---|
724 | parameter TIH = 200; // tIH ps Input Hold Time |
---|
725 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
---|
726 | parameter TRCD = 13125; // tRCD ps Active to Read/Write command time |
---|
727 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
728 | parameter TRP = 13125; // tRP ps Precharge command period |
---|
729 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
730 | parameter TXARDS = 10; // tXARDS tCK Exit low power active power down to a read command |
---|
731 | parameter TXARD = 3; // tXARD tCK Exit active power down to a read command |
---|
732 | parameter TXP = 3; // tXP tCK Exit power down to a non-read command |
---|
733 | parameter TANPD = 4; // tANPD tCK ODT to power-down entry latency |
---|
734 | parameter TAXPD = 11; // tAXPD tCK ODT power-down exit latency |
---|
735 | parameter CL_TIME = 13125; // CL ps Minimum CAS Latency |
---|
736 | `else `ifdef sg25E |
---|
737 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
---|
738 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
---|
739 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
---|
740 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
---|
741 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
742 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
743 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
744 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
745 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
746 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
747 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
---|
748 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
---|
749 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
---|
750 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
---|
751 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
---|
752 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
753 | parameter TIS = 175; // tIS ps Input Setup Time |
---|
754 | parameter TIH = 250; // tIH ps Input Hold Time |
---|
755 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
756 | parameter TRCD = 12500; // tRCD ps Active to Read/Write command time |
---|
757 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
758 | parameter TRP = 12500; // tRP ps Precharge command period |
---|
759 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
760 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
---|
761 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
762 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
763 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
764 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
---|
765 | parameter CL_TIME = 12500; // CL ps Minimum CAS Latency |
---|
766 | `else `ifdef sg25 |
---|
767 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
---|
768 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
---|
769 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
---|
770 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
---|
771 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
772 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
773 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
774 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
775 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
776 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
777 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
---|
778 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
---|
779 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
---|
780 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
---|
781 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
---|
782 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
783 | parameter TIS = 175; // tIS ps Input Setup Time |
---|
784 | parameter TIH = 250; // tIH ps Input Hold Time |
---|
785 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
786 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
787 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
788 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
789 | parameter TRPA = 17500; // tRPA ps Precharge All period |
---|
790 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
---|
791 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
792 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
793 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
794 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
---|
795 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
796 | `else `ifdef sg3E |
---|
797 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
---|
798 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
799 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
800 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
801 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
802 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
803 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
804 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
805 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
806 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
807 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
---|
808 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
---|
809 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
810 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
---|
811 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
---|
812 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
813 | parameter TIS = 200; // tIS ps Input Setup Time |
---|
814 | parameter TIH = 275; // tIH ps Input Hold Time |
---|
815 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
---|
816 | parameter TRCD = 12000; // tRCD ps Active to Read/Write command time |
---|
817 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
818 | parameter TRP = 12000; // tRP ps Precharge command period |
---|
819 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
820 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
---|
821 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
822 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
823 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
824 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
825 | parameter CL_TIME = 12000; // CL ps Minimum CAS Latency |
---|
826 | `else `ifdef sg3 |
---|
827 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
---|
828 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
829 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
830 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
831 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
832 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
833 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
834 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
835 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
836 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
837 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
---|
838 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
---|
839 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
840 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
---|
841 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
---|
842 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
843 | parameter TIS = 200; // tIS ps Input Setup Time |
---|
844 | parameter TIH = 275; // tIH ps Input Hold Time |
---|
845 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
846 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
847 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
848 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
849 | parameter TRPA = 18000; // tRPA ps Precharge All period |
---|
850 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
---|
851 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
852 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
853 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
854 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
855 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
856 | `else `ifdef sg37E |
---|
857 | parameter TCK_MIN = 3750; // tCK ps Minimum Clock Cycle Time |
---|
858 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
859 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
860 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
861 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
862 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
863 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
864 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
865 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
866 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
867 | parameter TQHS = 400; // tQHS ps Data hold skew factor |
---|
868 | parameter TAC = 500; // tAC ps DQ output access time from CK/CK# |
---|
869 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
870 | parameter TDH = 225; // tDH ps DQ and DM input hold time relative to DQS |
---|
871 | parameter TDQSCK = 450; // tDQSCK ps DQS output access time from CK/CK# |
---|
872 | parameter TDQSQ = 300; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
873 | parameter TIS = 250; // tIS ps Input Setup Time |
---|
874 | parameter TIH = 375; // tIH ps Input Hold Time |
---|
875 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
876 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
877 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
878 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
879 | parameter TRPA = 18750; // tRPA ps Precharge All period |
---|
880 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
---|
881 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
882 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
883 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
884 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
885 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
886 | `else `define sg5E |
---|
887 | parameter TCK_MIN = 5000; // tCK ps Minimum Clock Cycle Time |
---|
888 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
889 | parameter TJIT_DUTY = 150; // tJIT(duty) ps Half Period Jitter |
---|
890 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
891 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
892 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
893 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
894 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
895 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
896 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
897 | parameter TQHS = 450; // tQHS ps Data hold skew factor |
---|
898 | parameter TAC = 600; // tAC ps DQ output access time from CK/CK# |
---|
899 | parameter TDS = 150; // tDS ps DQ and DM input setup time relative to DQS |
---|
900 | parameter TDH = 275; // tDH ps DQ and DM input hold time relative to DQS |
---|
901 | parameter TDQSCK = 500; // tDQSCK ps DQS output access time from CK/CK# |
---|
902 | parameter TDQSQ = 350; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
903 | parameter TIS = 350; // tIS ps Input Setup Time |
---|
904 | parameter TIH = 475; // tIH ps Input Hold Time |
---|
905 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
906 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
907 | parameter TWTR = 10000; // tWTR ps Write to Read command delay |
---|
908 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
909 | parameter TRPA = 20000; // tRPA ps Precharge All period |
---|
910 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
---|
911 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
912 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
913 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
914 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
915 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
916 | `endif `endif `endif `endif `endif `endif |
---|
917 | |
---|
918 | `ifdef x16 |
---|
919 | `ifdef sg187E |
---|
920 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
921 | `else `ifdef sg25E |
---|
922 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
923 | `else `ifdef sg25 |
---|
924 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
925 | `else // sg3E, sg3, sg37E, sg5E |
---|
926 | parameter TFAW = 50000; // tFAW ps Four Bank Activate window |
---|
927 | `endif `endif `endif |
---|
928 | `else // x4, x8 |
---|
929 | `ifdef sg187E |
---|
930 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
931 | `else `ifdef sg25E |
---|
932 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
933 | `else `ifdef sg25 |
---|
934 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
935 | `else // sg3E, sg3, sg37E, sg5E |
---|
936 | parameter TFAW = 37500; // tFAW ps Four Bank Activate window |
---|
937 | `endif `endif `endif |
---|
938 | `endif |
---|
939 | |
---|
940 | // Timing Parameters |
---|
941 | |
---|
942 | // Mode Register |
---|
943 | parameter AL_MIN = 0; // AL tCK Minimum Additive Latency |
---|
944 | parameter AL_MAX = 6; // AL tCK Maximum Additive Latency |
---|
945 | parameter CL_MIN = 3; // CL tCK Minimum CAS Latency |
---|
946 | parameter CL_MAX = 7; // CL tCK Maximum CAS Latency |
---|
947 | parameter WR_MIN = 2; // WR tCK Minimum Write Recovery |
---|
948 | parameter WR_MAX = 8; // WR tCK Maximum Write Recovery |
---|
949 | parameter BL_MIN = 4; // BL tCK Minimum Burst Length |
---|
950 | parameter BL_MAX = 8; // BL tCK Minimum Burst Length |
---|
951 | // Clock |
---|
952 | parameter TCK_MAX = 8000; // tCK ps Maximum Clock Cycle Time |
---|
953 | parameter TCH_MIN = 0.48; // tCH tCK Minimum Clock High-Level Pulse Width |
---|
954 | parameter TCH_MAX = 0.52; // tCH tCK Maximum Clock High-Level Pulse Width |
---|
955 | parameter TCL_MIN = 0.48; // tCL tCK Minimum Clock Low-Level Pulse Width |
---|
956 | parameter TCL_MAX = 0.52; // tCL tCK Maximum Clock Low-Level Pulse Width |
---|
957 | // Data |
---|
958 | parameter TLZ = TAC; // tLZ ps Data-out low-impedance window from CK/CK# |
---|
959 | parameter THZ = TAC; // tHZ ps Data-out high impedance window from CK/CK# |
---|
960 | parameter TDIPW = 0.35; // tDIPW tCK DQ and DM input Pulse Width |
---|
961 | // Data Strobe |
---|
962 | parameter TDQSH = 0.35; // tDQSH tCK DQS input High Pulse Width |
---|
963 | parameter TDQSL = 0.35; // tDQSL tCK DQS input Low Pulse Width |
---|
964 | parameter TDSS = 0.20; // tDSS tCK DQS falling edge to CLK rising (setup time) |
---|
965 | parameter TDSH = 0.20; // tDSH tCK DQS falling edge from CLK rising (hold time) |
---|
966 | parameter TWPRE = 0.35; // tWPRE tCK DQS Write Preamble |
---|
967 | parameter TWPST = 0.40; // tWPST tCK DQS Write Postamble |
---|
968 | parameter TDQSS = 0.25; // tDQSS tCK Rising clock edge to DQS/DQS# latching transition |
---|
969 | // Command and Address |
---|
970 | parameter TIPW = 0.6; // tIPW tCK Control and Address input Pulse Width |
---|
971 | parameter TCCD = 2; // tCCD tCK Cas to Cas command delay |
---|
972 | parameter TRAS_MIN = 40000; // tRAS ps Minimum Active to Precharge command time |
---|
973 | parameter TRAS_MAX =70000000; // tRAS ps Maximum Active to Precharge command time |
---|
974 | parameter TRTP = 7500; // tRTP ps Read to Precharge command delay |
---|
975 | parameter TWR = 15000; // tWR ps Write recovery time |
---|
976 | parameter TMRD = 2; // tMRD tCK Load Mode Register command cycle time |
---|
977 | parameter TDLLK = 200; // tDLLK tCK DLL locking time |
---|
978 | // Refresh |
---|
979 | parameter TRFC_MIN = 127500; // tRFC ps Refresh to Refresh Command interval minimum value |
---|
980 | parameter TRFC_MAX =70000000; // tRFC ps Refresh to Refresh Command Interval maximum value |
---|
981 | // Self Refresh |
---|
982 | parameter TXSNR = TRFC_MIN + 10000; // tXSNR ps Exit self refesh to a non-read command |
---|
983 | parameter TXSRD = 200; // tXSRD tCK Exit self refresh to a read command |
---|
984 | parameter TISXR = TIS; // tISXR ps CKE setup time during self refresh exit. |
---|
985 | // ODT |
---|
986 | parameter TAOND = 2; // tAOND tCK ODT turn-on delay |
---|
987 | parameter TAOFD = 2.5; // tAOFD tCK ODT turn-off delay |
---|
988 | parameter TAONPD = 2000; // tAONPD ps ODT turn-on (precharge power-down mode) |
---|
989 | parameter TAOFPD = 2000; // tAOFPD ps ODT turn-off (precharge power-down mode) |
---|
990 | parameter TMOD = 12000; // tMOD ps ODT enable in EMR to ODT pin transition |
---|
991 | // Power Down |
---|
992 | parameter TCKE = 3; // tCKE tCK CKE minimum high or low pulse width |
---|
993 | |
---|
994 | // Size Parameters based on Part Width |
---|
995 | |
---|
996 | `ifdef x4 |
---|
997 | parameter ADDR_BITS = 14; // Address Bits |
---|
998 | parameter ROW_BITS = 14; // Number of Address bits |
---|
999 | parameter COL_BITS = 11; // Number of Column bits |
---|
1000 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
1001 | parameter DQ_BITS = 4; // Number of Data bits |
---|
1002 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
1003 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
1004 | `else `ifdef x8 |
---|
1005 | parameter ADDR_BITS = 14; // Address Bits |
---|
1006 | parameter ROW_BITS = 14; // Number of Address bits |
---|
1007 | parameter COL_BITS = 10; // Number of Column bits |
---|
1008 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
1009 | parameter DQ_BITS = 8; // Number of Data bits |
---|
1010 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
1011 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
1012 | `else `define x16 |
---|
1013 | parameter ADDR_BITS = 13; // Address Bits |
---|
1014 | parameter ROW_BITS = 13; // Number of Address bits |
---|
1015 | parameter COL_BITS = 10; // Number of Column bits |
---|
1016 | parameter DM_BITS = 2; // Number of Data Mask bits |
---|
1017 | parameter DQ_BITS = 16; // Number of Data bits |
---|
1018 | parameter DQS_BITS = 2; // Number of Dqs bits |
---|
1019 | parameter TRRD = 10000; // tRRD Active bank a to Active bank b command time |
---|
1020 | `endif `endif |
---|
1021 | |
---|
1022 | `ifdef QUAD_RANK |
---|
1023 | `define DUAL_RANK // also define DUAL_RANK |
---|
1024 | parameter CS_BITS = 4; // Number of Chip Select Bits |
---|
1025 | parameter RANKS = 4; // Number of Chip Select Bits |
---|
1026 | `else `ifdef DUAL_RANK |
---|
1027 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
1028 | parameter RANKS = 2; // Number of Chip Select Bits |
---|
1029 | `else |
---|
1030 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
1031 | parameter RANKS = 1; // Number of Chip Select Bits |
---|
1032 | `endif `endif |
---|
1033 | |
---|
1034 | // Size Parameters |
---|
1035 | parameter BA_BITS = 3; // Set this parmaeter to control how many Bank Address bits |
---|
1036 | parameter MEM_BITS = 10; // Number of write data bursts can be stored in memory. The default is 2^10=1024. |
---|
1037 | parameter AP = 10; // the address bit that controls auto-precharge and precharge-all |
---|
1038 | parameter BL_BITS = 3; // the number of bits required to count to MAX_BL |
---|
1039 | parameter BO_BITS = 2; // the number of Burst Order Bits |
---|
1040 | |
---|
1041 | `else `define x2Gb |
---|
1042 | |
---|
1043 | `ifdef sg187E |
---|
1044 | parameter TCK_MIN = 1875; // tCK ps Minimum Clock Cycle Time |
---|
1045 | parameter TJIT_PER = 90; // tJIT(per) ps Period JItter |
---|
1046 | parameter TJIT_DUTY = 75; // tJIT(duty) ps Half Period Jitter |
---|
1047 | parameter TJIT_CC = 180; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1048 | parameter TERR_2PER = 132; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1049 | parameter TERR_3PER = 157; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1050 | parameter TERR_4PER = 175; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1051 | parameter TERR_5PER = 188; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1052 | parameter TERR_N1PER = 250; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1053 | parameter TERR_N2PER = 425; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1054 | parameter TQHS = 250; // tQHS ps Data hold skew factor |
---|
1055 | parameter TAC = 350; // tAC ps DQ output access time from CK/CK# |
---|
1056 | parameter TDS = 0; // tDS ps DQ and DM input setup time relative to DQS |
---|
1057 | parameter TDH = 75; // tDH ps DQ and DM input hold time relative to DQS |
---|
1058 | parameter TDQSCK = 300; // tDQSCK ps DQS output access time from CK/CK# |
---|
1059 | parameter TDQSQ = 175; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1060 | parameter TIS = 125; // tIS ps Input Setup Time |
---|
1061 | parameter TIH = 200; // tIH ps Input Hold Time |
---|
1062 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
---|
1063 | parameter TRCD = 13125; // tRCD ps Active to Read/Write command time |
---|
1064 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
1065 | parameter TRP = 13125; // tRP ps Precharge command period |
---|
1066 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
1067 | parameter TXARDS = 10; // tXARDS tCK Exit low power active power down to a read command |
---|
1068 | parameter TXARD = 3; // tXARD tCK Exit active power down to a read command |
---|
1069 | parameter TXP = 3; // tXP tCK Exit power down to a non-read command |
---|
1070 | parameter TANPD = 4; // tANPD tCK ODT to power-down entry latency |
---|
1071 | parameter TAXPD = 11; // tAXPD tCK ODT power-down exit latency |
---|
1072 | parameter CL_TIME = 13125; // CL ps Minimum CAS Latency |
---|
1073 | `else `ifdef sg25E |
---|
1074 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
---|
1075 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
---|
1076 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
---|
1077 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1078 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1079 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1080 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1081 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1082 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1083 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1084 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
---|
1085 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
---|
1086 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
---|
1087 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
---|
1088 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
---|
1089 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1090 | parameter TIS = 175; // tIS ps Input Setup Time |
---|
1091 | parameter TIH = 250; // tIH ps Input Hold Time |
---|
1092 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
1093 | parameter TRCD = 12500; // tRCD ps Active to Read/Write command time |
---|
1094 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
1095 | parameter TRP = 12500; // tRP ps Precharge command period |
---|
1096 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
1097 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
---|
1098 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
1099 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
1100 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
1101 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
---|
1102 | parameter CL_TIME = 12500; // CL ps Minimum CAS Latency |
---|
1103 | `else `ifdef sg25 |
---|
1104 | parameter TCK_MIN = 2500; // tCK ps Minimum Clock Cycle Time |
---|
1105 | parameter TJIT_PER = 100; // tJIT(per) ps Period JItter |
---|
1106 | parameter TJIT_DUTY = 100; // tJIT(duty) ps Half Period Jitter |
---|
1107 | parameter TJIT_CC = 200; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1108 | parameter TERR_2PER = 150; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1109 | parameter TERR_3PER = 175; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1110 | parameter TERR_4PER = 200; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1111 | parameter TERR_5PER = 200; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1112 | parameter TERR_N1PER = 300; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1113 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1114 | parameter TQHS = 300; // tQHS ps Data hold skew factor |
---|
1115 | parameter TAC = 400; // tAC ps DQ output access time from CK/CK# |
---|
1116 | parameter TDS = 50; // tDS ps DQ and DM input setup time relative to DQS |
---|
1117 | parameter TDH = 125; // tDH ps DQ and DM input hold time relative to DQS |
---|
1118 | parameter TDQSCK = 350; // tDQSCK ps DQS output access time from CK/CK# |
---|
1119 | parameter TDQSQ = 200; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1120 | parameter TIS = 175; // tIS ps Input Setup Time |
---|
1121 | parameter TIH = 250; // tIH ps Input Hold Time |
---|
1122 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
1123 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
1124 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
1125 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
1126 | parameter TRPA = 17500; // tRPA ps Precharge All period |
---|
1127 | parameter TXARDS = 8; // tXARDS tCK Exit low power active power down to a read command |
---|
1128 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
1129 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
1130 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
1131 | parameter TAXPD = 10; // tAXPD tCK ODT power-down exit latency |
---|
1132 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
1133 | `else `ifdef sg3E |
---|
1134 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
---|
1135 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
1136 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
1137 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1138 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1139 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1140 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1141 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1142 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1143 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1144 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
---|
1145 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
---|
1146 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
1147 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
---|
1148 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
---|
1149 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1150 | parameter TIS = 200; // tIS ps Input Setup Time |
---|
1151 | parameter TIH = 275; // tIH ps Input Hold Time |
---|
1152 | parameter TRC = 54000; // tRC ps Active to Active/Auto Refresh command time |
---|
1153 | parameter TRCD = 12000; // tRCD ps Active to Read/Write command time |
---|
1154 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
1155 | parameter TRP = 12000; // tRP ps Precharge command period |
---|
1156 | parameter TRPA = 15000; // tRPA ps Precharge All period |
---|
1157 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
---|
1158 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
1159 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
1160 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
1161 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
1162 | parameter CL_TIME = 12000; // CL ps Minimum CAS Latency |
---|
1163 | `else `ifdef sg3 |
---|
1164 | parameter TCK_MIN = 3000; // tCK ps Minimum Clock Cycle Time |
---|
1165 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
1166 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
1167 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1168 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1169 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1170 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1171 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1172 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1173 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1174 | parameter TQHS = 340; // tQHS ps Data hold skew factor |
---|
1175 | parameter TAC = 450; // tAC ps DQ output access time from CK/CK# |
---|
1176 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
1177 | parameter TDH = 175; // tDH ps DQ and DM input hold time relative to DQS |
---|
1178 | parameter TDQSCK = 400; // tDQSCK ps DQS output access time from CK/CK# |
---|
1179 | parameter TDQSQ = 240; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1180 | parameter TIS = 200; // tIS ps Input Setup Time |
---|
1181 | parameter TIH = 275; // tIH ps Input Hold Time |
---|
1182 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
1183 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
1184 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
1185 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
1186 | parameter TRPA = 18000; // tRPA ps Precharge All period |
---|
1187 | parameter TXARDS = 7; // tXARDS tCK Exit low power active power down to a read command |
---|
1188 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
1189 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
1190 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
1191 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
1192 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
1193 | `else `ifdef sg37E |
---|
1194 | parameter TCK_MIN = 3750; // tCK ps Minimum Clock Cycle Time |
---|
1195 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
1196 | parameter TJIT_DUTY = 125; // tJIT(duty) ps Half Period Jitter |
---|
1197 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1198 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1199 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1200 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1201 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1202 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1203 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1204 | parameter TQHS = 400; // tQHS ps Data hold skew factor |
---|
1205 | parameter TAC = 500; // tAC ps DQ output access time from CK/CK# |
---|
1206 | parameter TDS = 100; // tDS ps DQ and DM input setup time relative to DQS |
---|
1207 | parameter TDH = 225; // tDH ps DQ and DM input hold time relative to DQS |
---|
1208 | parameter TDQSCK = 450; // tDQSCK ps DQS output access time from CK/CK# |
---|
1209 | parameter TDQSQ = 300; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1210 | parameter TIS = 250; // tIS ps Input Setup Time |
---|
1211 | parameter TIH = 375; // tIH ps Input Hold Time |
---|
1212 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
1213 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
1214 | parameter TWTR = 7500; // tWTR ps Write to Read command delay |
---|
1215 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
1216 | parameter TRPA = 18750; // tRPA ps Precharge All period |
---|
1217 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
---|
1218 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
1219 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
1220 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
1221 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
1222 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
1223 | `else `define sg5E |
---|
1224 | parameter TCK_MIN = 5000; // tCK ps Minimum Clock Cycle Time |
---|
1225 | parameter TJIT_PER = 125; // tJIT(per) ps Period JItter |
---|
1226 | parameter TJIT_DUTY = 150; // tJIT(duty) ps Half Period Jitter |
---|
1227 | parameter TJIT_CC = 250; // tJIT(cc) ps Cycle to Cycle jitter |
---|
1228 | parameter TERR_2PER = 175; // tERR(nper) ps Accumulated Error (2-cycle) |
---|
1229 | parameter TERR_3PER = 225; // tERR(nper) ps Accumulated Error (3-cycle) |
---|
1230 | parameter TERR_4PER = 250; // tERR(nper) ps Accumulated Error (4-cycle) |
---|
1231 | parameter TERR_5PER = 250; // tERR(nper) ps Accumulated Error (5-cycle) |
---|
1232 | parameter TERR_N1PER = 350; // tERR(nper) ps Accumulated Error (6-10-cycle) |
---|
1233 | parameter TERR_N2PER = 450; // tERR(nper) ps Accumulated Error (11-50-cycle) |
---|
1234 | parameter TQHS = 450; // tQHS ps Data hold skew factor |
---|
1235 | parameter TAC = 600; // tAC ps DQ output access time from CK/CK# |
---|
1236 | parameter TDS = 150; // tDS ps DQ and DM input setup time relative to DQS |
---|
1237 | parameter TDH = 275; // tDH ps DQ and DM input hold time relative to DQS |
---|
1238 | parameter TDQSCK = 500; // tDQSCK ps DQS output access time from CK/CK# |
---|
1239 | parameter TDQSQ = 350; // tDQSQ ps DQS-DQ skew, DQS to last DQ valid, per group, per access |
---|
1240 | parameter TIS = 350; // tIS ps Input Setup Time |
---|
1241 | parameter TIH = 475; // tIH ps Input Hold Time |
---|
1242 | parameter TRC = 55000; // tRC ps Active to Active/Auto Refresh command time |
---|
1243 | parameter TRCD = 15000; // tRCD ps Active to Read/Write command time |
---|
1244 | parameter TWTR = 10000; // tWTR ps Write to Read command delay |
---|
1245 | parameter TRP = 15000; // tRP ps Precharge command period |
---|
1246 | parameter TRPA = 20000; // tRPA ps Precharge All period |
---|
1247 | parameter TXARDS = 6; // tXARDS tCK Exit low power active power down to a read command |
---|
1248 | parameter TXARD = 2; // tXARD tCK Exit active power down to a read command |
---|
1249 | parameter TXP = 2; // tXP tCK Exit power down to a non-read command |
---|
1250 | parameter TANPD = 3; // tANPD tCK ODT to power-down entry latency |
---|
1251 | parameter TAXPD = 8; // tAXPD tCK ODT power-down exit latency |
---|
1252 | parameter CL_TIME = 15000; // CL ps Minimum CAS Latency |
---|
1253 | `endif `endif `endif `endif `endif `endif |
---|
1254 | |
---|
1255 | `ifdef x16 |
---|
1256 | `ifdef sg187E |
---|
1257 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
1258 | `else `ifdef sg25E |
---|
1259 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
1260 | `else `ifdef sg25 |
---|
1261 | parameter TFAW = 45000; // tFAW ps Four Bank Activate window |
---|
1262 | `else // sg3E, sg3, sg37E, sg5E |
---|
1263 | parameter TFAW = 50000; // tFAW ps Four Bank Activate window |
---|
1264 | `endif `endif `endif |
---|
1265 | `else // x4, x8 |
---|
1266 | `ifdef sg187E |
---|
1267 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
1268 | `else `ifdef sg25E |
---|
1269 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
1270 | `else `ifdef sg25 |
---|
1271 | parameter TFAW = 35000; // tFAW ps Four Bank Activate window |
---|
1272 | `else // sg3E, sg3, sg37E, sg5E |
---|
1273 | parameter TFAW = 37500; // tFAW ps Four Bank Activate window |
---|
1274 | `endif `endif `endif |
---|
1275 | `endif |
---|
1276 | |
---|
1277 | // Timing Parameters |
---|
1278 | |
---|
1279 | // Mode Register |
---|
1280 | parameter AL_MIN = 0; // AL tCK Minimum Additive Latency |
---|
1281 | parameter AL_MAX = 6; // AL tCK Maximum Additive Latency |
---|
1282 | parameter CL_MIN = 3; // CL tCK Minimum CAS Latency |
---|
1283 | parameter CL_MAX = 7; // CL tCK Maximum CAS Latency |
---|
1284 | parameter WR_MIN = 2; // WR tCK Minimum Write Recovery |
---|
1285 | parameter WR_MAX = 8; // WR tCK Maximum Write Recovery |
---|
1286 | parameter BL_MIN = 4; // BL tCK Minimum Burst Length |
---|
1287 | parameter BL_MAX = 8; // BL tCK Minimum Burst Length |
---|
1288 | // Clock |
---|
1289 | parameter TCK_MAX = 8000; // tCK ps Maximum Clock Cycle Time |
---|
1290 | parameter TCH_MIN = 0.48; // tCH tCK Minimum Clock High-Level Pulse Width |
---|
1291 | parameter TCH_MAX = 0.52; // tCH tCK Maximum Clock High-Level Pulse Width |
---|
1292 | parameter TCL_MIN = 0.48; // tCL tCK Minimum Clock Low-Level Pulse Width |
---|
1293 | parameter TCL_MAX = 0.52; // tCL tCK Maximum Clock Low-Level Pulse Width |
---|
1294 | // Data |
---|
1295 | parameter TLZ = TAC; // tLZ ps Data-out low-impedance window from CK/CK# |
---|
1296 | parameter THZ = TAC; // tHZ ps Data-out high impedance window from CK/CK# |
---|
1297 | parameter TDIPW = 0.35; // tDIPW tCK DQ and DM input Pulse Width |
---|
1298 | // Data Strobe |
---|
1299 | parameter TDQSH = 0.35; // tDQSH tCK DQS input High Pulse Width |
---|
1300 | parameter TDQSL = 0.35; // tDQSL tCK DQS input Low Pulse Width |
---|
1301 | parameter TDSS = 0.20; // tDSS tCK DQS falling edge to CLK rising (setup time) |
---|
1302 | parameter TDSH = 0.20; // tDSH tCK DQS falling edge from CLK rising (hold time) |
---|
1303 | parameter TWPRE = 0.35; // tWPRE tCK DQS Write Preamble |
---|
1304 | parameter TWPST = 0.40; // tWPST tCK DQS Write Postamble |
---|
1305 | parameter TDQSS = 0.25; // tDQSS tCK Rising clock edge to DQS/DQS# latching transition |
---|
1306 | // Command and Address |
---|
1307 | parameter TIPW = 0.6; // tIPW tCK Control and Address input Pulse Width |
---|
1308 | parameter TCCD = 2; // tCCD tCK Cas to Cas command delay |
---|
1309 | parameter TRAS_MIN = 40000; // tRAS ps Minimum Active to Precharge command time |
---|
1310 | parameter TRAS_MAX =70000000; // tRAS ps Maximum Active to Precharge command time |
---|
1311 | parameter TRTP = 7500; // tRTP ps Read to Precharge command delay |
---|
1312 | parameter TWR = 15000; // tWR ps Write recovery time |
---|
1313 | parameter TMRD = 2; // tMRD tCK Load Mode Register command cycle time |
---|
1314 | parameter TDLLK = 200; // tDLLK tCK DLL locking time |
---|
1315 | // Refresh |
---|
1316 | parameter TRFC_MIN = 197500; // tRFC ps Refresh to Refresh Command interval minimum value |
---|
1317 | parameter TRFC_MAX =70000000; // tRFC ps Refresh to Refresh Command Interval maximum value |
---|
1318 | // Self Refresh |
---|
1319 | parameter TXSNR = TRFC_MIN + 10000; // tXSNR ps Exit self refesh to a non-read command |
---|
1320 | parameter TXSRD = 200; // tXSRD tCK Exit self refresh to a read command |
---|
1321 | parameter TISXR = TIS; // tISXR ps CKE setup time during self refresh exit. |
---|
1322 | // ODT |
---|
1323 | parameter TAOND = 2; // tAOND tCK ODT turn-on delay |
---|
1324 | parameter TAOFD = 2.5; // tAOFD tCK ODT turn-off delay |
---|
1325 | parameter TAONPD = 2000; // tAONPD ps ODT turn-on (precharge power-down mode) |
---|
1326 | parameter TAOFPD = 2000; // tAOFPD ps ODT turn-off (precharge power-down mode) |
---|
1327 | parameter TMOD = 12000; // tMOD ps ODT enable in EMR to ODT pin transition |
---|
1328 | // Power Down |
---|
1329 | parameter TCKE = 3; // tCKE tCK CKE minimum high or low pulse width |
---|
1330 | |
---|
1331 | // Size Parameters based on Part Width |
---|
1332 | |
---|
1333 | `ifdef x4 |
---|
1334 | parameter ADDR_BITS = 15; // Address Bits |
---|
1335 | parameter ROW_BITS = 15; // Number of Address bits |
---|
1336 | parameter COL_BITS = 11; // Number of Column bits |
---|
1337 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
1338 | parameter DQ_BITS = 4; // Number of Data bits |
---|
1339 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
1340 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
1341 | `else `ifdef x8 |
---|
1342 | parameter ADDR_BITS = 15; // Address Bits |
---|
1343 | parameter ROW_BITS = 15; // Number of Address bits |
---|
1344 | parameter COL_BITS = 10; // Number of Column bits |
---|
1345 | parameter DM_BITS = 1; // Number of Data Mask bits |
---|
1346 | parameter DQ_BITS = 8; // Number of Data bits |
---|
1347 | parameter DQS_BITS = 1; // Number of Dqs bits |
---|
1348 | parameter TRRD = 7500; // tRRD Active bank a to Active bank b command time |
---|
1349 | `else `define x16 |
---|
1350 | parameter ADDR_BITS = 14; // Address Bits |
---|
1351 | parameter ROW_BITS = 14; // Number of Address bits |
---|
1352 | parameter COL_BITS = 10; // Number of Column bits |
---|
1353 | parameter DM_BITS = 2; // Number of Data Mask bits |
---|
1354 | parameter DQ_BITS = 16; // Number of Data bits |
---|
1355 | parameter DQS_BITS = 2; // Number of Dqs bits |
---|
1356 | parameter TRRD = 10000; // tRRD Active bank a to Active bank b command time |
---|
1357 | `endif `endif |
---|
1358 | |
---|
1359 | `ifdef QUAD_RANK |
---|
1360 | `define DUAL_RANK // also define DUAL_RANK |
---|
1361 | parameter CS_BITS = 4; // Number of Chip Select Bits |
---|
1362 | parameter RANKS = 4; // Number of Chip Select Bits |
---|
1363 | `else `ifdef DUAL_RANK |
---|
1364 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
1365 | parameter RANKS = 2; // Number of Chip Select Bits |
---|
1366 | `else |
---|
1367 | parameter CS_BITS = 2; // Number of Chip Select Bits |
---|
1368 | parameter RANKS = 1; // Number of Chip Select Bits |
---|
1369 | `endif `endif |
---|
1370 | |
---|
1371 | // Size Parameters |
---|
1372 | parameter BA_BITS = 3; // Set this parmaeter to control how many Bank Address bits |
---|
1373 | parameter MEM_BITS = 10; // Number of write data bursts can be stored in memory. The default is 2^10=1024. |
---|
1374 | parameter AP = 10; // the address bit that controls auto-precharge and precharge-all |
---|
1375 | parameter BL_BITS = 3; // the number of bits required to count to MAX_BL |
---|
1376 | parameter BO_BITS = 2; // the number of Burst Order Bits |
---|
1377 | |
---|
1378 | `endif `endif `endif |
---|
1379 | |
---|
1380 | // Simulation parameters |
---|
1381 | parameter STOP_ON_ERROR = 1; // If set to 1, the model will halt on command sequence/major errors |
---|
1382 | parameter DEBUG = 1; // Turn on Debug messages |
---|
1383 | parameter BUS_DELAY = 0; // delay in nanoseconds |
---|
1384 | parameter RANDOM_OUT_DELAY = 0; // If set to 1, the model will put a random amount of delay on DQ/DQS during reads |
---|
1385 | parameter RANDOM_SEED = 711689044; //seed value for random generator. |
---|
1386 | |
---|
1387 | parameter RDQSEN_PRE = 2; // DQS driving time prior to first read strobe |
---|
1388 | parameter RDQSEN_PST = 1; // DQS driving time after last read strobe |
---|
1389 | parameter RDQS_PRE = 2; // DQS low time prior to first read strobe |
---|
1390 | parameter RDQS_PST = 1; // DQS low time after last valid read strobe |
---|
1391 | parameter RDQEN_PRE = 0; // DQ/DM driving time prior to first read data |
---|
1392 | parameter RDQEN_PST = 0; // DQ/DM driving time after last read data |
---|
1393 | parameter WDQS_PRE = 1; // DQS half clock periods prior to first write strobe |
---|
1394 | parameter WDQS_PST = 1; // DQS half clock periods after last valid write strobe |
---|