ethermac: reduce interrupt overhead
[nios2ecos.git] / eth_ocm / eth_avalon_bd_ram.v
blobf6397830ffba34d100392178530a31886d616a19
1 //////////////////////////////////////////////////////////////////////
2 //// ////
3 //// eth_avalon_bd_ram.v ////
4 //// ////
5 //// This file is a patch used in conjunction with the ////
6 //// Ethernet IP core project. ////
7 //// http://www.opencores.org/projects/ethmac/ ////
8 //// ////
9 //// Author(s): ////
10 //// - Jakob Jones (jrjonsie@gmail.com) ////
11 //// ////
12 //// All additional information is available in the Readme.txt ////
13 //// file. ////
14 //// ////
15 //////////////////////////////////////////////////////////////////////
16 module eth_avalon_bd_ram #( parameter DEPTH=128 ) (
17 input clock,
18 //port A
19 input wren_a,
20 input [clogb2(DEPTH-1):0] address_a,
21 input [31:0] data_a,
22 output [31:0] q_a,
23 //port B
24 input wren_b,
25 input [clogb2(DEPTH-1):0] address_b,
26 input [31:0] data_b,
27 output [31:0] q_b
30 `include "eth_avalon_functions.v"
32 altsyncram altsyncram_component (
33 .wren_a (wren_a ),
34 .clock0 (clock ),
35 .wren_b (wren_b ),
36 .address_a (address_a ),
37 .address_b (address_b ),
38 .data_a (data_a ),
39 .data_b (data_b ),
40 .q_a (q_a ),
41 .q_b (q_b ),
42 .aclr0 (1'b0 ),
43 .aclr1 (1'b0 ),
44 .addressstall_a (1'b0 ),
45 .addressstall_b (1'b0 ),
46 .byteena_a (1'b1 ),
47 .byteena_b (1'b1 ),
48 .clock1 (1'b1 ),
49 .clocken0 (1'b1 ),
50 .clocken1 (1'b1 ),
51 .clocken2 (1'b1 ),
52 .clocken3 (1'b1 ),
53 .eccstatus ( ),
54 .rden_a (1'b1 ),
55 .rden_b (1'b1 )
58 defparam
59 altsyncram_component.address_reg_b = "CLOCK0",
60 altsyncram_component.clock_enable_input_a = "BYPASS",
61 altsyncram_component.clock_enable_input_b = "BYPASS",
62 altsyncram_component.clock_enable_output_a = "BYPASS",
63 altsyncram_component.clock_enable_output_b = "BYPASS",
64 altsyncram_component.indata_reg_b = "CLOCK0",
65 altsyncram_component.intended_device_family = "Cyclone II",
66 altsyncram_component.lpm_type = "altsyncram",
67 altsyncram_component.numwords_a = DEPTH,
68 altsyncram_component.numwords_b = DEPTH,
69 altsyncram_component.operation_mode = "BIDIR_DUAL_PORT",
70 altsyncram_component.outdata_aclr_a = "NONE",
71 altsyncram_component.outdata_aclr_b = "NONE",
72 altsyncram_component.outdata_reg_a = "UNREGISTERED",
73 altsyncram_component.outdata_reg_b = "UNREGISTERED",
74 altsyncram_component.power_up_uninitialized = "FALSE",
75 altsyncram_component.read_during_write_mode_mixed_ports = "DONT_CARE",
76 altsyncram_component.widthad_a = clogb2(DEPTH-1),
77 altsyncram_component.widthad_b = clogb2(DEPTH-1),
78 altsyncram_component.width_a = 32,
79 altsyncram_component.width_b = 32,
80 altsyncram_component.width_byteena_a = 1,
81 altsyncram_component.width_byteena_b = 1,
82 altsyncram_component.wrcontrol_wraddress_reg_b = "CLOCK0";
85 endmodule
87 // ============================================================
88 // CNX file retrieval info
89 // ============================================================
90 // Retrieval info: PRIVATE: ADDRESSSTALL_A NUMERIC "0"
91 // Retrieval info: PRIVATE: ADDRESSSTALL_B NUMERIC "0"
92 // Retrieval info: PRIVATE: BYTEENA_ACLR_A NUMERIC "0"
93 // Retrieval info: PRIVATE: BYTEENA_ACLR_B NUMERIC "0"
94 // Retrieval info: PRIVATE: BYTE_ENABLE_A NUMERIC "0"
95 // Retrieval info: PRIVATE: BYTE_ENABLE_B NUMERIC "0"
96 // Retrieval info: PRIVATE: BYTE_SIZE NUMERIC "8"
97 // Retrieval info: PRIVATE: BlankMemory NUMERIC "1"
98 // Retrieval info: PRIVATE: CLOCK_ENABLE_INPUT_A NUMERIC "0"
99 // Retrieval info: PRIVATE: CLOCK_ENABLE_INPUT_B NUMERIC "0"
100 // Retrieval info: PRIVATE: CLOCK_ENABLE_OUTPUT_A NUMERIC "0"
101 // Retrieval info: PRIVATE: CLOCK_ENABLE_OUTPUT_B NUMERIC "0"
102 // Retrieval info: PRIVATE: CLRdata NUMERIC "0"
103 // Retrieval info: PRIVATE: CLRq NUMERIC "0"
104 // Retrieval info: PRIVATE: CLRrdaddress NUMERIC "0"
105 // Retrieval info: PRIVATE: CLRrren NUMERIC "0"
106 // Retrieval info: PRIVATE: CLRwraddress NUMERIC "0"
107 // Retrieval info: PRIVATE: CLRwren NUMERIC "0"
108 // Retrieval info: PRIVATE: Clock NUMERIC "0"
109 // Retrieval info: PRIVATE: Clock_A NUMERIC "0"
110 // Retrieval info: PRIVATE: Clock_B NUMERIC "0"
111 // Retrieval info: PRIVATE: ECC NUMERIC "0"
112 // Retrieval info: PRIVATE: IMPLEMENT_IN_LES NUMERIC "0"
113 // Retrieval info: PRIVATE: INDATA_ACLR_B NUMERIC "0"
114 // Retrieval info: PRIVATE: INDATA_REG_B NUMERIC "1"
115 // Retrieval info: PRIVATE: INIT_FILE_LAYOUT STRING "PORT_A"
116 // Retrieval info: PRIVATE: INIT_TO_SIM_X NUMERIC "0"
117 // Retrieval info: PRIVATE: INTENDED_DEVICE_FAMILY STRING "Cyclone II"
118 // Retrieval info: PRIVATE: JTAG_ENABLED NUMERIC "0"
119 // Retrieval info: PRIVATE: JTAG_ID STRING "NONE"
120 // Retrieval info: PRIVATE: MAXIMUM_DEPTH NUMERIC "0"
121 // Retrieval info: PRIVATE: MEMSIZE NUMERIC "4096"
122 // Retrieval info: PRIVATE: MEM_IN_BITS NUMERIC "0"
123 // Retrieval info: PRIVATE: MIFfilename STRING ""
124 // Retrieval info: PRIVATE: OPERATION_MODE NUMERIC "3"
125 // Retrieval info: PRIVATE: OUTDATA_ACLR_B NUMERIC "0"
126 // Retrieval info: PRIVATE: OUTDATA_REG_B NUMERIC "0"
127 // Retrieval info: PRIVATE: RAM_BLOCK_TYPE NUMERIC "0"
128 // Retrieval info: PRIVATE: READ_DURING_WRITE_MODE_MIXED_PORTS NUMERIC "2"
129 // Retrieval info: PRIVATE: READ_DURING_WRITE_MODE_PORT_A NUMERIC "3"
130 // Retrieval info: PRIVATE: READ_DURING_WRITE_MODE_PORT_B NUMERIC "3"
131 // Retrieval info: PRIVATE: REGdata NUMERIC "1"
132 // Retrieval info: PRIVATE: REGq NUMERIC "0"
133 // Retrieval info: PRIVATE: REGrdaddress NUMERIC "0"
134 // Retrieval info: PRIVATE: REGrren NUMERIC "0"
135 // Retrieval info: PRIVATE: REGwraddress NUMERIC "1"
136 // Retrieval info: PRIVATE: REGwren NUMERIC "1"
137 // Retrieval info: PRIVATE: SYNTH_WRAPPER_GEN_POSTFIX STRING "0"
138 // Retrieval info: PRIVATE: USE_DIFF_CLKEN NUMERIC "0"
139 // Retrieval info: PRIVATE: UseDPRAM NUMERIC "1"
140 // Retrieval info: PRIVATE: VarWidth NUMERIC "0"
141 // Retrieval info: PRIVATE: WIDTH_READ_A NUMERIC "32"
142 // Retrieval info: PRIVATE: WIDTH_READ_B NUMERIC "32"
143 // Retrieval info: PRIVATE: WIDTH_WRITE_A NUMERIC "32"
144 // Retrieval info: PRIVATE: WIDTH_WRITE_B NUMERIC "32"
145 // Retrieval info: PRIVATE: WRADDR_ACLR_B NUMERIC "0"
146 // Retrieval info: PRIVATE: WRADDR_REG_B NUMERIC "1"
147 // Retrieval info: PRIVATE: WRCTRL_ACLR_B NUMERIC "0"
148 // Retrieval info: PRIVATE: enable NUMERIC "0"
149 // Retrieval info: PRIVATE: rden NUMERIC "0"
150 // Retrieval info: CONSTANT: ADDRESS_REG_B STRING "CLOCK0"
151 // Retrieval info: CONSTANT: CLOCK_ENABLE_INPUT_A STRING "BYPASS"
152 // Retrieval info: CONSTANT: CLOCK_ENABLE_INPUT_B STRING "BYPASS"
153 // Retrieval info: CONSTANT: CLOCK_ENABLE_OUTPUT_A STRING "BYPASS"
154 // Retrieval info: CONSTANT: CLOCK_ENABLE_OUTPUT_B STRING "BYPASS"
155 // Retrieval info: CONSTANT: INDATA_REG_B STRING "CLOCK0"
156 // Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Cyclone II"
157 // Retrieval info: CONSTANT: LPM_TYPE STRING "altsyncram"
158 // Retrieval info: CONSTANT: NUMWORDS_A NUMERIC "128"
159 // Retrieval info: CONSTANT: NUMWORDS_B NUMERIC "128"
160 // Retrieval info: CONSTANT: OPERATION_MODE STRING "BIDIR_DUAL_PORT"
161 // Retrieval info: CONSTANT: OUTDATA_ACLR_A STRING "NONE"
162 // Retrieval info: CONSTANT: OUTDATA_ACLR_B STRING "NONE"
163 // Retrieval info: CONSTANT: OUTDATA_REG_A STRING "UNREGISTERED"
164 // Retrieval info: CONSTANT: OUTDATA_REG_B STRING "UNREGISTERED"
165 // Retrieval info: CONSTANT: POWER_UP_UNINITIALIZED STRING "FALSE"
166 // Retrieval info: CONSTANT: READ_DURING_WRITE_MODE_MIXED_PORTS STRING "DONT_CARE"
167 // Retrieval info: CONSTANT: WIDTHAD_A NUMERIC "7"
168 // Retrieval info: CONSTANT: WIDTHAD_B NUMERIC "7"
169 // Retrieval info: CONSTANT: WIDTH_A NUMERIC "32"
170 // Retrieval info: CONSTANT: WIDTH_B NUMERIC "32"
171 // Retrieval info: CONSTANT: WIDTH_BYTEENA_A NUMERIC "1"
172 // Retrieval info: CONSTANT: WIDTH_BYTEENA_B NUMERIC "1"
173 // Retrieval info: CONSTANT: WRCONTROL_WRADDRESS_REG_B STRING "CLOCK0"
174 // Retrieval info: USED_PORT: address_a 0 0 7 0 INPUT NODEFVAL address_a[6..0]
175 // Retrieval info: USED_PORT: address_b 0 0 7 0 INPUT NODEFVAL address_b[6..0]
176 // Retrieval info: USED_PORT: clock 0 0 0 0 INPUT NODEFVAL clock
177 // Retrieval info: USED_PORT: data_a 0 0 32 0 INPUT NODEFVAL data_a[31..0]
178 // Retrieval info: USED_PORT: data_b 0 0 32 0 INPUT NODEFVAL data_b[31..0]
179 // Retrieval info: USED_PORT: q_a 0 0 32 0 OUTPUT NODEFVAL q_a[31..0]
180 // Retrieval info: USED_PORT: q_b 0 0 32 0 OUTPUT NODEFVAL q_b[31..0]
181 // Retrieval info: USED_PORT: wren_a 0 0 0 0 INPUT VCC wren_a
182 // Retrieval info: USED_PORT: wren_b 0 0 0 0 INPUT VCC wren_b
183 // Retrieval info: CONNECT: @data_a 0 0 32 0 data_a 0 0 32 0
184 // Retrieval info: CONNECT: @wren_a 0 0 0 0 wren_a 0 0 0 0
185 // Retrieval info: CONNECT: q_a 0 0 32 0 @q_a 0 0 32 0
186 // Retrieval info: CONNECT: q_b 0 0 32 0 @q_b 0 0 32 0
187 // Retrieval info: CONNECT: @address_a 0 0 7 0 address_a 0 0 7 0
188 // Retrieval info: CONNECT: @data_b 0 0 32 0 data_b 0 0 32 0
189 // Retrieval info: CONNECT: @address_b 0 0 7 0 address_b 0 0 7 0
190 // Retrieval info: CONNECT: @wren_b 0 0 0 0 wren_b 0 0 0 0
191 // Retrieval info: CONNECT: @clock0 0 0 0 0 clock 0 0 0 0
192 // Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
193 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram.v TRUE
194 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram.inc FALSE
195 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram.cmp FALSE
196 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram.bsf FALSE
197 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram_inst.v FALSE
198 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram_bb.v FALSE
199 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram_waveforms.html FALSE
200 // Retrieval info: GEN_FILE: TYPE_NORMAL eth_avalon_bd_ram_wave*.jpg FALSE
201 // Retrieval info: LIB_FILE: altera_mf