sdrm_t.sch

这是我从网上找到的用vhdl语言写的sdram控制器的代码。我的邮箱：[e-mail]

VERSION 6
BEGIN SCHEMATIC
    BEGIN ATTR DeviceFamilyName "spartan3"
        DELETE all:0
        EDITNAME all:0
        EDITTRAIT all:0
    END ATTR
    BEGIN NETLIST
        SIGNAL cas_lat_max(1:0)
        SIGNAL ld_cslt
        SIGNAL burst_max(2:0)
        SIGNAL ld_brst
        SIGNAL rcd_c_max(1:0)
        SIGNAL ld_rcd
        SIGNAL cslt_end
        SIGNAL rcd_end
        SIGNAL auto_ref_in
        SIGNAL write_st
        SIGNAL Act_st(2:0)
        SIGNAL ki_max(3:0)
        SIGNAL ad_tri
        SIGNAL XLXN_232
        SIGNAL XLXN_233
        SIGNAL auto_ref_out
        SIGNAL p_auto_ref
        SIGNAL ref_max(15:0)
        SIGNAL ki_end
        SIGNAL XLXN_344
        SIGNAL kid
        SIGNAL pre_sd_ready
        SIGNAL pre_clr_ref
        SIGNAL pre_ld_brst
        SIGNAL pre_ld_rcd
        SIGNAL pre_sd_add_mx
        SIGNAL pre_sd_doe2_n
        SIGNAL pre_sd_doe_n
        SIGNAL pre_ld_cslt
        SIGNAL pre_sd_we_p
        SIGNAL pre_sd_cas_p
        SIGNAL pre_sd_ras_p
        SIGNAL XLXN_511
        SIGNAL XLXN_512
        SIGNAL XLXN_513
        SIGNAL XLXN_514
        SIGNAL XLXN_515
        SIGNAL XLXN_517
        SIGNAL XLXN_627
        SIGNAL XLXN_631
        SIGNAL XLXN_632
        SIGNAL XLXN_633
        SIGNAL XLXN_634
        SIGNAL XLXN_637(10:0)
        SIGNAL XLXN_638(10:0)
        SIGNAL XLXN_636(3:0)
        SIGNAL XLXN_635(8:0)
        SIGNAL XLXN_667(10:0)
        SIGNAL Add_reg(20:10)
        SIGNAL XLXN_670(3:0)
        SIGNAL XLXN_671(8:0)
        SIGNAL XLXN_672(8:0)
        SIGNAL sd_doe_n(3:0)
        SIGNAL sd_add_o(10:0)
        SIGNAL sd_add_mx
        SIGNAL clk_j
        SIGNAL pre_locked
        SIGNAL XLXN_716
        SIGNAL XLXN_717
        SIGNAL Locked1
        SIGNAL Locked2
        SIGNAL brst_end
        SIGNAL brst_end_m1
        SIGNAL pre_ad_tri
        SIGNAL Locked_j
        SIGNAL clk_i
        SIGNAL locked_i
        SIGNAL Ad_reg(21:2)
        SIGNAL XLXN_669(10:0)
        SIGNAL sd_doe_n_temp(3:0)
        SIGNAL XLXN_759
        SIGNAL Ad_reg(21)
        SIGNAL XLXN_703(8:0)
        SIGNAL sd_ras_o
        SIGNAL sd_cas_o
        SIGNAL sd_we_o
        SIGNAL sd_ba_o
        SIGNAL ready_o
        SIGNAL XLXN_782
        SIGNAL clr_ref
        SIGNAL XLXN_885
        PORT Input cas_lat_max(1:0)
        PORT Input burst_max(2:0)
        PORT Input rcd_c_max(1:0)
        PORT Output rcd_end
        PORT Input auto_ref_in
        PORT Input write_st
        PORT Input Act_st(2:0)
        PORT Input ki_max(3:0)
        PORT Output ad_tri
        PORT Output auto_ref_out
        PORT Input ref_max(15:0)
        PORT Output kid
        PORT Output sd_doe_n(3:0)
        PORT Output sd_add_o(10:0)
        PORT Input clk_j
        PORT Input Locked1
        PORT Input Locked2
        PORT Output Locked_j
        PORT Input clk_i
        PORT Output locked_i
        PORT Input Ad_reg(21:2)
        PORT Output sd_ras_o
        PORT Output sd_cas_o
        PORT Output sd_we_o
        PORT Output sd_ba_o
        PORT Output ready_o
        BEGIN BLOCKDEF brst_cntr
            TIMESTAMP 2006 3 9 15 19 36
            RECTANGLE N 64 -256 320 0 
            LINE N 64 -224 0 -224 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -32 384 -32 
            LINE N 320 -224 384 -224 
        END BLOCKDEF
        BEGIN BLOCKDEF cslt_cntr
            TIMESTAMP 2006 3 5 13 39 50
            RECTANGLE N 64 -256 320 0 
            LINE N 64 -224 0 -224 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -224 384 -224 
        END BLOCKDEF
        BEGIN BLOCKDEF ki_cntr
            TIMESTAMP 2006 3 5 13 39 58
            RECTANGLE N 64 -256 320 0 
            LINE N 64 -224 0 -224 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -224 384 -224 
        END BLOCKDEF
        BEGIN BLOCKDEF rcd_cntr
            TIMESTAMP 2006 3 5 13 40 4
            RECTANGLE N 64 -256 320 0 
            LINE N 64 -224 0 -224 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -224 384 -224 
        END BLOCKDEF
        BEGIN BLOCKDEF ref_cntr
            TIMESTAMP 2006 3 5 13 40 12
            RECTANGLE N 64 -256 320 0 
            LINE N 64 -224 0 -224 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -224 384 -224 
            LINE N 320 -32 384 -32 
        END BLOCKDEF
        BEGIN BLOCKDEF sdrmc_state
            TIMESTAMP 2006 3 10 13 56 46
            RECTANGLE N 64 -768 320 0 
            LINE N 64 -736 0 -736 
            LINE N 64 -672 0 -672 
            LINE N 64 -608 0 -608 
            LINE N 64 -544 0 -544 
            LINE N 64 -480 0 -480 
            LINE N 64 -416 0 -416 
            LINE N 64 -352 0 -352 
            LINE N 64 -288 0 -288 
            LINE N 64 -224 0 -224 
            LINE N 64 -160 0 -160 
            RECTANGLE N 0 -172 64 -148 
            LINE N 320 -736 384 -736 
            LINE N 320 -672 384 -672 
            LINE N 320 -608 384 -608 
            LINE N 320 -544 384 -544 
            LINE N 320 -480 384 -480 
            LINE N 320 -416 384 -416 
            LINE N 320 -352 384 -352 
            LINE N 320 -288 384 -288 
            LINE N 320 -224 384 -224 
            LINE N 320 -32 384 -32 
            LINE N 320 -160 384 -160 
            LINE N 320 -96 384 -96 
        END BLOCKDEF
        BEGIN BLOCKDEF srl16
            TIMESTAMP 2001 2 2 12 39 45
            LINE N 384 -448 320 -448 
            LINE N 0 -512 64 -512 
            LINE N 0 -320 64 -320 
            LINE N 0 -256 64 -256 
            LINE N 0 -192 64 -192 
            LINE N 0 -128 64 -128 
            LINE N 0 -384 64 -384 
            LINE N 64 -368 80 -384 
            LINE N 80 -384 64 -400 
            RECTANGLE N 64 -576 320 -64 
        END BLOCKDEF
        BEGIN BLOCKDEF gnd
            TIMESTAMP 2001 2 2 12 37 29
            LINE N 64 -64 64 -96 
            LINE N 76 -48 52 -48 
            LINE N 68 -32 60 -32 
            LINE N 88 -64 40 -64 
            LINE N 64 -64 64 -80 
            LINE N 64 -128 64 -96 
        END BLOCKDEF
        BEGIN BLOCKDEF vcc
            TIMESTAMP 2001 2 2 12 37 29
            LINE N 64 -32 64 -64 
            LINE N 64 0 64 -32 
            LINE N 96 -64 32 -64 
        END BLOCKDEF
        BEGIN BLOCKDEF or3
            TIMESTAMP 2001 2 2 12 38 38
            LINE N 0 -64 48 -64 
            LINE N 0 -128 72 -128 
            LINE N 0 -192 48 -192 
            LINE N 256 -128 192 -128 
            ARC N 28 -256 204 -80 112 -80 192 -128 
            ARC N -40 -184 72 -72 48 -80 48 -176 
            LINE N 48 -64 48 -80 
            LINE N 48 -192 48 -176 
            LINE N 112 -80 48 -80 
            ARC N 28 -176 204 0 192 -128 112 -176 
            LINE N 112 -176 48 -176 
        END BLOCKDEF
        BEGIN BLOCKDEF inv
            TIMESTAMP 2001 2 2 12 38 38
            LINE N 0 -32 64 -32 
            LINE N 224 -32 160 -32 
            LINE N 64 -64 128 -32 
            LINE N 128 -32 64 0 
            LINE N 64 0 64 -64 
            CIRCLE N 128 -48 160 -16 
        END BLOCKDEF
        BEGIN BLOCKDEF and3
            TIMESTAMP 2001 2 2 12 38 38
            LINE N 0 -64 64 -64 
            LINE N 0 -128 64 -128 
            LINE N 0 -192 64 -192 
            LINE N 256 -128 192 -128 
            LINE N 64 -176 144 -176 
            LINE N 144 -80 64 -80 
            ARC N 96 -176 192 -80 144 -80 144 -176 
            LINE N 64 -64 64 -192 
        END BLOCKDEF
        BEGIN BLOCKDEF and2
            TIMESTAMP 2001 2 2 12 38 38
            LINE N 0 -64 64 -64 
            LINE N 0 -128 64 -128 
            LINE N 256 -96 192 -96 
            ARC N 96 -144 192 -48 144 -48 144 -144 
            LINE N 144 -48 64 -48 
            LINE N 64 -144 144 -144 
            LINE N 64 -48 64 -144 
        END BLOCKDEF
        BEGIN BLOCKDEF or2
            TIMESTAMP 2001 2 2 12 38 38
            LINE N 0 -64 64 -64 
            LINE N 0 -128 64 -128 
            LINE N 256 -96 192 -96 
            ARC N 28 -224 204 -48 112 -48 192 -96 
            ARC N -40 -152 72 -40 48 -48 48 -144 
            LINE N 112 -144 48 -144 
            ARC N 28 -144 204 32 192 -96 112 -144 
            LINE N 112 -48 48 -48 
        END BLOCKDEF
        BEGIN BLOCKDEF fd
            TIMESTAMP 2001 2 2 12 37 14
            RECTANGLE N 64 -320 320 -64 
            LINE N 0 -128 64 -128 
            LINE N 0 -256 64 -256 
            LINE N 384 -256 320 -256 
            LINE N 80 -128 64 -144 
            LINE N 64 -112 80 -128 
        END BLOCKDEF
        BEGIN BLOCKDEF mux2to1_9
            TIMESTAMP 2006 3 9 12 5 20
            RECTANGLE N 64 -192 320 0 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            RECTANGLE N 0 -108 64 -84 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -160 384 -160 
            RECTANGLE N 320 -172 384 -148 
        END BLOCKDEF
        BEGIN BLOCKDEF fd_9
            TIMESTAMP 2006 3 9 12 31 18
            RECTANGLE N 64 -128 320 0 
            LINE N 320 -96 384 -96 
            RECTANGLE N 320 -108 384 -84 
            LINE N 64 -16 0 -16 
            LINE N 64 -96 0 -96 
            RECTANGLE N 0 -108 64 -84 
        END BLOCKDEF
        BEGIN BLOCKDEF fd_4
            TIMESTAMP 2006 3 9 12 34 38
            RECTANGLE N 64 -128 320 0 
            LINE N 320 -96 384 -96 
            RECTANGLE N 320 -108 384 -84 
            LINE N 64 -32 0 -32 
            LINE N 64 -80 0 -80 
            RECTANGLE N 0 -92 64 -68 
        END BLOCKDEF
        BEGIN BLOCKDEF mux2to1_4
            TIMESTAMP 2006 3 9 12 28 46
            RECTANGLE N 64 -192 320 0 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            RECTANGLE N 0 -108 64 -84 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -160 384 -160 
            RECTANGLE N 320 -172 384 -148 
        END BLOCKDEF
        BEGIN BLOCKDEF fd_11
            TIMESTAMP 2006 3 12 15 0 48
            RECTANGLE N 64 -176 320 -48 
            LINE N 320 -144 384 -144 
            RECTANGLE N 320 -156 384 -132 
            LINE N 64 -144 0 -144 
            RECTANGLE N 0 -156 64 -132 
            LINE N 64 -80 0 -80 
            LINE N 0 -32 204 -32 
            LINE N 204 -32 204 -48 
        END BLOCKDEF
        BEGIN BLOCKDEF mux2to1_11
            TIMESTAMP 2006 3 9 13 1 48
            RECTANGLE N 64 -192 320 0 
            LINE N 64 -160 0 -160 
            LINE N 64 -96 0 -96 
            RECTANGLE N 0 -108 64 -84 
            LINE N 64 -32 0 -32 
            RECTANGLE N 0 -44 64 -20 
            LINE N 320 -160 384 -160 
            RECTANGLE N 320 -172 384 -148 
        END BLOCKDEF
        BEGIN BLOCKDEF fde
            TIMESTAMP 2001 2 2 12 37 14
            LINE N 0 -128 64 -128 
            LINE N 0 -192 64 -192 
            LINE N 0 -256 64 -256 
            LINE N 384 -256 320 -256 
            RECTANGLE N 64 -320 320 -64 
            LINE N 64 -112 80 -128 
            LINE N 80 -128 64 -144 
        END BLOCKDEF
        BEGIN BLOCK XLXI_2 cslt_cntr
            PIN Reset locked_i
            PIN Clk clk_i
            PIN ld_cslt ld_cslt
            PIN cslt_max(1:0) cas_lat_max(1:0)
            PIN cslt_end cslt_end
        END BLOCK
        BEGIN BLOCK XLXI_1 brst_cntr
            PIN Reset locked_i
            PIN Clk clk_i
            PIN ld_brst ld_brst
            PIN brst_max(2:0) burst_max(2:0)
            PIN brst_end brst_end
            PIN brst_end_m1 brst_end_m1
        END BLOCK
        BEGIN BLOCK XLXI_4 rcd_cntr
            PIN Reset locked_i
            PIN Clk clk_i
            PIN ld_rcd ld_rcd
            PIN rcd_max(1:0) rcd_c_max(1:0)
            PIN rcd_end rcd_end
        END BLOCK
        BEGIN BLOCK XLXI_23 srl16
            PIN A0 XLXN_233
            PIN A1 XLXN_233
            PIN A2 XLXN_232
            PIN A3 XLXN_233
            PIN CLK clk_i
            PIN D pre_ad_tri
            PIN Q ad_tri
        END BLOCK
        BEGIN BLOCK XLXI_68 gnd
            PIN G XLXN_233
        END BLOCK
        BEGIN BLOCK XLXI_69 vcc
            PIN P XLXN_232
        END BLOCK
        BEGIN BLOCK XLXI_3 ki_cntr
            PIN Reset locked_i
            PIN Clk clk_i
            PIN ld_ki clr_ref
            PIN ki_max(3:0) ki_max(3:0)
            PIN ki_end ki_end
        END BLOCK
        BEGIN BLOCK XLXI_5 ref_cntr
            PIN Reset Locked_j
            PIN Clk clk_j
            PIN clr_ref clr_ref
            PIN ref_max(15:0) ref_max(15:0)
            PIN auto_ref auto_ref_out
            PIN p_auto_ref p_auto_ref
        END BLOCK
        BEGIN BLOCK XLXI_92 inv
            PIN I ki_end
            PIN O XLXN_344