sdram_controller_1.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]

            WIRE 5632 2096 5648 2096
            BEGIN DISPLAY 5632 2096 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_we
            WIRE 5872 2096 5888 2096
        END BRANCH
        BEGIN BRANCH AD(31:0)
            WIRE 5616 2768 5728 2768
            WIRE 5728 2768 5872 2768
            BEGIN DISPLAY 5728 2768 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH ad_o(31:0)
            WIRE 4608 2032 4608 2800
            WIRE 4608 2800 5104 2800
            WIRE 5104 2800 5232 2800
            BEGIN DISPLAY 5104 2800 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH AD_tri
            WIRE 4256 2736 4272 2736
            WIRE 4272 2736 5232 2736
            BEGIN DISPLAY 4272 2736 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        LINE N 4236 2652 4268 2696 
        LINE N 4260 2656 4248 2692 
        LINE N 4268 2536 4248 2564 
        LINE N 4248 2536 4268 2560 
        LINE N 4240 2400 4272 2432 
        LINE N 4256 2392 4256 2428 
        LINE N 4268 2320 4256 2368 
        LINE N 4240 2332 4272 2372 
        BEGIN BRANCH sd_we_op
            WIRE 4256 2224 4928 2224
            WIRE 4928 2224 5088 2224
            WIRE 5088 2096 5232 2096
            WIRE 5088 2096 5088 2224
            BEGIN DISPLAY 4928 2224 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_cas_op
            WIRE 4256 2160 4928 2160
            WIRE 4928 2160 5040 2160
            WIRE 5040 1760 5232 1760
            WIRE 5040 1760 5040 2160
            BEGIN DISPLAY 4928 2160 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_ras_op
            WIRE 4256 2096 4928 2096
            WIRE 4928 2096 4992 2096
            WIRE 4992 1408 4992 2096
            WIRE 4992 1408 5232 1408
            BEGIN DISPLAY 4928 2096 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_add_op(10:0)
            WIRE 4256 2800 4432 2800
            WIRE 4432 2800 4432 3120
            WIRE 4432 3120 4528 3120
            WIRE 4528 3120 4688 3120
            BEGIN DISPLAY 4528 3120 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH we_rn_reg
            WIRE 2064 3008 2112 3008
            WIRE 2112 2752 2656 2752
            WIRE 2112 2752 2112 3008
            BEGIN DISPLAY 2112 2752 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH data_addr_n_reg
            WIRE 1584 2768 1792 2768
            WIRE 1792 2672 1792 2768
            WIRE 1792 2672 1904 2672
            WIRE 1904 2672 2656 2672
            BEGIN DISPLAY 1904 2672 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH data_addr_n_i
            WIRE 1040 2768 1056 2768
            WIRE 1056 2768 1200 2768
            WIRE 1056 2512 1056 2768
            WIRE 1056 2512 1888 2512
            WIRE 1888 2512 2656 2512
            BEGIN DISPLAY 1888 2512 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH burst_max(2:0)
            WIRE 3120 2672 3472 2672
            WIRE 3472 2672 3824 2672
            BEGIN DISPLAY 3472 2672 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH ref_max(15:0)
            WIRE 3120 2800 3472 2800
            WIRE 3472 2800 3824 2800
            BEGIN DISPLAY 3472 2800 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH Act_st(2:0)
            WIRE 3120 2480 3456 2480
            WIRE 3456 2480 3824 2480
            BEGIN DISPLAY 3456 2480 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH cas_lat_max(1:0)
            WIRE 3120 2608 3488 2608
            WIRE 3488 2608 3824 2608
            BEGIN DISPLAY 3488 2608 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH ki_max(3:0)
            WIRE 3120 2736 3456 2736
            WIRE 3456 2736 3824 2736
            BEGIN DISPLAY 3456 2736 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH rcd_c_max(1:0)
            WIRE 3120 2544 3472 2544
            WIRE 3472 2544 3824 2544
            BEGIN DISPLAY 3472 2544 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH add_reg(21:2)
            WIRE 3120 2864 3472 2864
            WIRE 3472 2864 3824 2864
            BEGIN DISPLAY 3472 2864 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN INSTANCE XLXI_1 3824 2896 R0
        END INSTANCE
        IOMARKER 5904 1408 sd_ras R0 28
        INSTANCE XLXI_113 5648 1440 R0
        INSTANCE XLXI_107 5232 1664 R0
        IOMARKER 5888 1760 sd_cas R0 28
        INSTANCE XLXI_114 5648 1792 R0
        INSTANCE XLXI_106 5232 2016 R0
        IOMARKER 5888 2096 sd_we R0 28
        INSTANCE XLXI_115 5648 2128 R0
        INSTANCE XLXI_105 5232 2352 R0
        BEGIN BRANCH clk_i
            WIRE 5200 2544 5232 2544
            BEGIN DISPLAY 5200 2544 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH locked_i
            WIRE 5200 2640 5232 2640
            BEGIN DISPLAY 5200 2640 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        INSTANCE XLXI_104 5232 2672 R0
        BEGIN BRANCH sd_ba_op
            WIRE 4256 2288 4928 2288
            WIRE 4928 2288 4992 2288
            WIRE 4992 2288 4992 2416
            WIRE 4992 2416 5232 2416
            BEGIN DISPLAY 4928 2288 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        INSTANCE XLXI_112 5648 2448 R0
        BEGIN BRANCH sd_ba_o
            WIRE 5616 2416 5632 2416
            WIRE 5632 2416 5648 2416
            BEGIN DISPLAY 5632 2416 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        IOMARKER 5888 2416 sd_ba R0 28
        IOMARKER 5872 2768 AD(31:0) R0 28
        BEGIN INSTANCE XLXI_141 5232 2896 R0
        END INSTANCE
        BEGIN BRANCH sd_cas
            WIRE 5872 1760 5888 1760
        END BRANCH
        BEGIN INSTANCE XLXI_70 4480 1040 R0
        END INSTANCE
        BEGIN BRANCH clk_i
            WIRE 4400 944 4480 944
            BEGIN DISPLAY 4400 944 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH locked_i
            WIRE 4400 816 4480 816
            BEGIN DISPLAY 4400 816 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        INSTANCE XLXI_95 2944 704 R270
        BEGIN BRANCH XLXN_487
            WIRE 2944 640 2976 640
        END BRANCH
        BEGIN BRANCH sd_data_o(31:0)
            WIRE 4864 880 4944 880
            WIRE 4944 816 4944 880
            WIRE 4944 816 5072 816
            WIRE 5072 816 5232 816
            BEGIN DISPLAY 5072 816 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_data_t(31:0)
            WIRE 4128 704 4128 752
            WIRE 4128 752 4128 976
            WIRE 4128 976 4128 1200
            WIRE 4128 1200 4128 1520
            WIRE 4128 752 5072 752
            WIRE 5072 752 5232 752
            BEGIN DISPLAY 5072 752 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_data(31:0)
            WIRE 5616 784 5824 784
        END BRANCH
        BUSTAP 4128 1200 4032 1200
        BEGIN BRANCH sd_data_t(15:8)
            WIRE 3760 1248 3872 1248
            WIRE 3872 1248 3968 1248
            WIRE 3968 1200 4032 1200
            WIRE 3968 1200 3968 1248
            BEGIN DISPLAY 3872 1248 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_data_t(7:0)
            WIRE 3760 1520 3856 1520
            WIRE 3856 1520 4032 1520
            BEGIN DISPLAY 3856 1520 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BUSTAP 4128 1520 4032 1520
        BEGIN INSTANCE XLXI_50 3376 1408 R0
        END INSTANCE
        BEGIN BRANCH sd_data_t(23:16)
            WIRE 3760 976 3872 976
            WIRE 3872 976 4032 976
            BEGIN DISPLAY 3872 976 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BUSTAP 4128 976 4032 976
        BEGIN BRANCH sd_data_t(31:24)
            WIRE 3744 704 3856 704
            WIRE 3856 704 4032 704
            BEGIN DISPLAY 3856 704 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BUSTAP 4128 704 4032 704
        BEGIN INSTANCE XLXI_241 2272 1280 R0
        END INSTANCE
        BEGIN BRANCH sd_doe_n(3:0)
            WIRE 2656 1120 2784 1120
            WIRE 2784 1120 2784 1248
            WIRE 2784 1248 2784 1520
            WIRE 2784 704 2784 832
            WIRE 2784 832 2784 976
            WIRE 2784 976 2784 1120
            BEGIN DISPLAY 2784 832 ATTR Name
                ALIGNMENT SOFT-TVCENTER
            END DISPLAY
        END BRANCH
        BUSTAP 2784 704 2880 704
        BUSTAP 2784 976 2880 976
        BUSTAP 2784 1248 2848 1248
        BUSTAP 2784 1520 2880 1520
        INSTANCE XLXI_98 2960 1520 R270
        INSTANCE XLXI_94 2976 1552 R0
        BEGIN BRANCH sd_doe_n(3)
            WIRE 2880 704 2896 704
            WIRE 2896 704 2976 704
            BEGIN DISPLAY 2896 704 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_doe_n(2)
            WIRE 2880 976 2896 976
            WIRE 2896 976 2976 976
            BEGIN DISPLAY 2896 976 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_doe_n(1)
            WIRE 2848 1248 2880 1248
            WIRE 2880 1248 2976 1248
            BEGIN DISPLAY 2880 1248 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_doe_n(0)
            WIRE 2880 1520 2896 1520
            WIRE 2896 1520 2976 1520
            BEGIN DISPLAY 2896 1520 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH XLXN_27
            WIRE 2960 1456 2976 1456
        END BRANCH
        BEGIN BRANCH XLXN_26
            WIRE 2960 1184 2976 1184
        END BRANCH
        BEGIN BRANCH XLXN_25
            WIRE 2960 912 2976 912
        END BRANCH
        INSTANCE XLXI_97 2960 1248 R270
        INSTANCE XLXI_96 2960 976 R270
        INSTANCE XLXI_93 2976 1280 R0
        INSTANCE XLXI_92 2976 1008 R0
        INSTANCE XLXI_91 2976 736 R0
        BEGIN BRANCH XLXN_23(7:0)
            WIRE 3200 1520 3376 1520
        END BRANCH
        BEGIN BRANCH XLXN_22(7:0)
            WIRE 3200 1248 3376 1248
        END BRANCH
        BEGIN BRANCH XLXN_21(7:0)
            WIRE 3200 976 3376 976
        END BRANCH
        BEGIN BRANCH XLXN_20(7:0)
            WIRE 3200 704 3360 704
        END BRANCH
        BEGIN INSTANCE XLXI_49 3376 1680 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_52 3376 1136 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_109 5232 912 R0
        END INSTANCE
        IOMARKER 5824 784 sd_data(31:0) R0 28
        BEGIN INSTANCE XLXI_722 4816 1200 M90
        END INSTANCE
        BEGIN INSTANCE XLXI_723 4816 1648 M90
        END INSTANCE
        BEGIN BRANCH sd_data_r(31:0)
            WIRE 4608 1584 4608 1616
            WIRE 4608 1616 4608 1648
            BEGIN DISPLAY 4608 1616 ATTR Name
                ALIGNMENT SOFT-TVCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_data_i(31:0)
            WIRE 4608 1104 5024 1104
            WIRE 4608 1104 4608 1200
            WIRE 5024 880 5024 1104
            WIRE 5024 880 5072 880
            WIRE 5072 880 5232 880
            BEGIN DISPLAY 5072 880 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_data_reg(31:0)
            WIRE 3120 2416 3376 2416
            WIRE 3376 1744 3376 2416
            WIRE 3376 1744 3904 1744
            WIRE 3904 1744 4224 1744
            WIRE 4224 880 4480 880
            WIRE 4224 880 4224 1744
            BEGIN DISPLAY 3904 1744 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH sd_doe_np(3:0)