1 -- megafunction wizard: %FIFO%
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2 -- GENERATION: STANDARD
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6 -- ============================================================
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7 -- File Name: sdram_write_fifo.vhd
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8 -- Megafunction Name(s):
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11 -- Simulation Library Files(s):
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13 -- ============================================================
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14 -- ************************************************************
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15 -- THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
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17 -- 13.0.1 Build 232 06/12/2013 SP 1 SJ Web Edition
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18 -- ************************************************************
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21 --Copyright (C) 1991-2013 Altera Corporation
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22 --Your use of Altera Corporation's design tools, logic functions
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23 --and other software and tools, and its AMPP partner logic
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24 --functions, and any output files from any of the foregoing
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25 --(including device programming or simulation files), and any
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26 --associated documentation or information are expressly subject
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27 --to the terms and conditions of the Altera Program License
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28 --Subscription Agreement, Altera MegaCore Function License
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29 --Agreement, or other applicable license agreement, including,
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30 --without limitation, that your use is for the sole purpose of
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31 --programming logic devices manufactured by Altera and sold by
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32 --Altera or its authorized distributors. Please refer to the
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33 --applicable agreement for further details.
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37 USE ieee.std_logic_1164.all;
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42 ENTITY sdram_write_fifo IS
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45 aclr : IN STD_LOGIC ;
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46 clock : IN STD_LOGIC ;
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47 data : IN STD_LOGIC_VECTOR (11 DOWNTO 0);
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48 rdreq : IN STD_LOGIC ;
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49 wrreq : IN STD_LOGIC ;
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50 empty : OUT STD_LOGIC ;
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51 full : OUT STD_LOGIC ;
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52 q : OUT STD_LOGIC_VECTOR (11 DOWNTO 0);
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53 usedw : OUT STD_LOGIC_VECTOR (7 DOWNTO 0)
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55 END sdram_write_fifo;
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58 ARCHITECTURE SYN OF sdram_write_fifo IS
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60 SIGNAL sub_wire0 : STD_LOGIC_VECTOR (7 DOWNTO 0);
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61 SIGNAL sub_wire1 : STD_LOGIC ;
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62 SIGNAL sub_wire2 : STD_LOGIC ;
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63 SIGNAL sub_wire3 : STD_LOGIC_VECTOR (11 DOWNTO 0);
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69 add_ram_output_register : STRING;
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70 intended_device_family : STRING;
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71 lpm_numwords : NATURAL;
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72 lpm_showahead : STRING;
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74 lpm_width : NATURAL;
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75 lpm_widthu : NATURAL;
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76 overflow_checking : STRING;
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77 underflow_checking : STRING;
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81 clock : IN STD_LOGIC ;
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82 usedw : OUT STD_LOGIC_VECTOR (7 DOWNTO 0);
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83 empty : OUT STD_LOGIC ;
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84 full : OUT STD_LOGIC ;
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85 q : OUT STD_LOGIC_VECTOR (11 DOWNTO 0);
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86 wrreq : IN STD_LOGIC ;
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87 aclr : IN STD_LOGIC ;
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88 data : IN STD_LOGIC_VECTOR (11 DOWNTO 0);
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89 rdreq : IN STD_LOGIC
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94 usedw <= sub_wire0(7 DOWNTO 0);
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97 q <= sub_wire3(11 DOWNTO 0);
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99 scfifo_component : scfifo
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101 add_ram_output_register => "OFF",
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102 intended_device_family => "Cyclone II",
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103 lpm_numwords => 256,
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104 lpm_showahead => "OFF",
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105 lpm_type => "scfifo",
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108 overflow_checking => "ON",
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109 underflow_checking => "ON",
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118 usedw => sub_wire0,
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119 empty => sub_wire1,
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128 -- ============================================================
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129 -- CNX file retrieval info
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130 -- ============================================================
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131 -- Retrieval info: PRIVATE: AlmostEmpty NUMERIC "0"
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132 -- Retrieval info: PRIVATE: AlmostEmptyThr NUMERIC "-1"
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133 -- Retrieval info: PRIVATE: AlmostFull NUMERIC "0"
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134 -- Retrieval info: PRIVATE: AlmostFullThr NUMERIC "-1"
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135 -- Retrieval info: PRIVATE: CLOCKS_ARE_SYNCHRONIZED NUMERIC "1"
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136 -- Retrieval info: PRIVATE: Clock NUMERIC "0"
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137 -- Retrieval info: PRIVATE: Depth NUMERIC "256"
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138 -- Retrieval info: PRIVATE: Empty NUMERIC "1"
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139 -- Retrieval info: PRIVATE: Full NUMERIC "1"
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140 -- Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Cyclone II"
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141 -- Retrieval info: PRIVATE: LE_BasedFIFO NUMERIC "0"
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142 -- Retrieval info: PRIVATE: LegacyRREQ NUMERIC "1"
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143 -- Retrieval info: PRIVATE: MAX_DEPTH_BY_9 NUMERIC "0"
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144 -- Retrieval info: PRIVATE: OVERFLOW_CHECKING NUMERIC "0"
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145 -- Retrieval info: PRIVATE: Optimize NUMERIC "0"
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146 -- Retrieval info: PRIVATE: RAM_BLOCK_TYPE NUMERIC "0"
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147 -- Retrieval info: PRIVATE: SYNTH_WRAPPER_GEN_POSTFIX STRING "0"
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148 -- Retrieval info: PRIVATE: UNDERFLOW_CHECKING NUMERIC "0"
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149 -- Retrieval info: PRIVATE: UsedW NUMERIC "1"
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150 -- Retrieval info: PRIVATE: Width NUMERIC "12"
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151 -- Retrieval info: PRIVATE: dc_aclr NUMERIC "0"
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152 -- Retrieval info: PRIVATE: diff_widths NUMERIC "0"
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153 -- Retrieval info: PRIVATE: msb_usedw NUMERIC "0"
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154 -- Retrieval info: PRIVATE: output_width NUMERIC "12"
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155 -- Retrieval info: PRIVATE: rsEmpty NUMERIC "1"
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156 -- Retrieval info: PRIVATE: rsFull NUMERIC "0"
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157 -- Retrieval info: PRIVATE: rsUsedW NUMERIC "0"
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158 -- Retrieval info: PRIVATE: sc_aclr NUMERIC "1"
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159 -- Retrieval info: PRIVATE: sc_sclr NUMERIC "0"
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160 -- Retrieval info: PRIVATE: wsEmpty NUMERIC "0"
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161 -- Retrieval info: PRIVATE: wsFull NUMERIC "1"
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162 -- Retrieval info: PRIVATE: wsUsedW NUMERIC "0"
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163 -- Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
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164 -- Retrieval info: CONSTANT: ADD_RAM_OUTPUT_REGISTER STRING "OFF"
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165 -- Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Cyclone II"
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166 -- Retrieval info: CONSTANT: LPM_NUMWORDS NUMERIC "256"
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167 -- Retrieval info: CONSTANT: LPM_SHOWAHEAD STRING "OFF"
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168 -- Retrieval info: CONSTANT: LPM_TYPE STRING "scfifo"
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169 -- Retrieval info: CONSTANT: LPM_WIDTH NUMERIC "12"
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170 -- Retrieval info: CONSTANT: LPM_WIDTHU NUMERIC "8"
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171 -- Retrieval info: CONSTANT: OVERFLOW_CHECKING STRING "ON"
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172 -- Retrieval info: CONSTANT: UNDERFLOW_CHECKING STRING "ON"
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173 -- Retrieval info: CONSTANT: USE_EAB STRING "ON"
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174 -- Retrieval info: USED_PORT: aclr 0 0 0 0 INPUT NODEFVAL "aclr"
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175 -- Retrieval info: USED_PORT: clock 0 0 0 0 INPUT NODEFVAL "clock"
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176 -- Retrieval info: USED_PORT: data 0 0 12 0 INPUT NODEFVAL "data[11..0]"
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177 -- Retrieval info: USED_PORT: empty 0 0 0 0 OUTPUT NODEFVAL "empty"
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178 -- Retrieval info: USED_PORT: full 0 0 0 0 OUTPUT NODEFVAL "full"
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179 -- Retrieval info: USED_PORT: q 0 0 12 0 OUTPUT NODEFVAL "q[11..0]"
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180 -- Retrieval info: USED_PORT: rdreq 0 0 0 0 INPUT NODEFVAL "rdreq"
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181 -- Retrieval info: USED_PORT: usedw 0 0 8 0 OUTPUT NODEFVAL "usedw[7..0]"
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182 -- Retrieval info: USED_PORT: wrreq 0 0 0 0 INPUT NODEFVAL "wrreq"
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183 -- Retrieval info: CONNECT: @aclr 0 0 0 0 aclr 0 0 0 0
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184 -- Retrieval info: CONNECT: @clock 0 0 0 0 clock 0 0 0 0
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185 -- Retrieval info: CONNECT: @data 0 0 12 0 data 0 0 12 0
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186 -- Retrieval info: CONNECT: @rdreq 0 0 0 0 rdreq 0 0 0 0
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187 -- Retrieval info: CONNECT: @wrreq 0 0 0 0 wrreq 0 0 0 0
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188 -- Retrieval info: CONNECT: empty 0 0 0 0 @empty 0 0 0 0
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189 -- Retrieval info: CONNECT: full 0 0 0 0 @full 0 0 0 0
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190 -- Retrieval info: CONNECT: q 0 0 12 0 @q 0 0 12 0
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191 -- Retrieval info: CONNECT: usedw 0 0 8 0 @usedw 0 0 8 0
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192 -- Retrieval info: GEN_FILE: TYPE_NORMAL sdram_write_fifo.vhd TRUE
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193 -- Retrieval info: GEN_FILE: TYPE_NORMAL sdram_write_fifo.inc FALSE
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194 -- Retrieval info: GEN_FILE: TYPE_NORMAL sdram_write_fifo.cmp TRUE
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195 -- Retrieval info: GEN_FILE: TYPE_NORMAL sdram_write_fifo.bsf FALSE
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196 -- Retrieval info: GEN_FILE: TYPE_NORMAL sdram_write_fifo_inst.vhd FALSE
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197 -- Retrieval info: LIB_FILE: altera_mf
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