Subversion Repositories srdydrdy_lib

module duram(

data_a,

data_b,

wren_a,

wren_b,

address_a,

address_b,

clock_a,

clock_b,

q_a,

q_b);   //synthesis syn_black_box

parameter DATA_WIDTH    = 32;

parameter ADDR_WIDTH    = 5;

parameter BLK_RAM_TYPE  = "AUTO";

parameter DURAM_MODE    = "BIDIR_DUAL_PORT";

parameter ADDR_DEPTH    = 2**ADDR_WIDTH;

input   [DATA_WIDTH -1:0]   data_a;

input                       wren_a;

input   [ADDR_WIDTH -1:0]   address_a;

input                       clock_a;

output  [DATA_WIDTH -1:0]   q_a;

input   [DATA_WIDTH -1:0]   data_b;

input                       wren_b;

input   [ADDR_WIDTH -1:0]   address_b;

input                       clock_b;

output  [DATA_WIDTH -1:0]   q_b;

`ifndef ALTERA_MEM

reg  [DATA_WIDTH -1:0]   q_a;

reg  [DATA_WIDTH -1:0]   q_b;

reg [DATA_WIDTH-1:0] mem [0:ADDR_DEPTH-1];

  always @(posedge clock_a)

    begin

      q_a <= mem[address_a];

      if (wren_a)

        mem[address_a] <= data_a;

    end

  always @(posedge clock_b)

    begin

      q_b <= mem[address_b];

      if (wren_a)

        mem[address_b] <= data_b;

    end

`else

altsyncram U_altsyncram (

.wren_a         (wren_a),

.wren_b         (wren_b),

.data_a         (data_a),

.data_b         (data_b),

.address_a      (address_a),

.address_b      (address_b),

.clock0         (clock_a),

.clock1         (clock_b),

.q_a            (q_a),

.q_b            (q_b),

// synopsys translate_off

.aclr0 (),

.aclr1 (),

.addressstall_a (),

.addressstall_b (),

.byteena_a (),

.byteena_b (),

.clocken0 (),

.clocken1 (),

.rden_b ()

// synopsys translate_on

);

    defparam

        U_altsyncram.intended_device_family = "Stratix",

        U_altsyncram.ram_block_type = BLK_RAM_TYPE,

        U_altsyncram.operation_mode = DURAM_MODE,

        U_altsyncram.width_a = DATA_WIDTH,

        U_altsyncram.widthad_a = ADDR_WIDTH,

//      U_altsyncram.numwords_a = 256,

        U_altsyncram.width_b = DATA_WIDTH,

        U_altsyncram.widthad_b = ADDR_WIDTH,

//      U_altsyncram.numwords_b = 256,

        U_altsyncram.lpm_type = "altsyncram",

        U_altsyncram.width_byteena_a = 1,

        U_altsyncram.width_byteena_b = 1,

        U_altsyncram.outdata_reg_a = "UNREGISTERED",

        U_altsyncram.outdata_aclr_a = "NONE",

        U_altsyncram.outdata_reg_b = "UNREGISTERED",

        U_altsyncram.indata_aclr_a = "NONE",

        U_altsyncram.wrcontrol_aclr_a = "NONE",

        U_altsyncram.address_aclr_a = "NONE",

        U_altsyncram.indata_reg_b = "CLOCK1",

        U_altsyncram.address_reg_b = "CLOCK1",

        U_altsyncram.wrcontrol_wraddress_reg_b = "CLOCK1",

        U_altsyncram.indata_aclr_b = "NONE",

        U_altsyncram.wrcontrol_aclr_b = "NONE",

        U_altsyncram.address_aclr_b = "NONE",

        U_altsyncram.outdata_aclr_b = "NONE",

        U_altsyncram.power_up_uninitialized = "FALSE";

`endif

endmodule