sdram_controller.schbak

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 2160 2032 2160 2160
            WIRE 2160 2160 2160 2192
            WIRE 2160 2160 2208 2160
        END BRANCH
        BEGIN BRANCH pre_ad_tri
            WIRE 2112 1776 2208 1776
        END BRANCH
        INSTANCE XLXI_22 608 2304 R0
        INSTANCE XLXI_66 496 2320 R0
        INSTANCE XLXI_67 576 2112 M0
        INSTANCE XLXI_23 2208 2288 R0
        INSTANCE XLXI_68 2096 2320 R0
        INSTANCE XLXI_69 2000 2096 R0
        BEGIN INSTANCE XLXI_3 1376 1712 R0
        END INSTANCE
        BEGIN BRANCH clk_i
            WIRE 400 240 544 240
            WIRE 544 240 544 512
            WIRE 544 512 544 880
            WIRE 544 880 720 880
            WIRE 544 512 720 512
            WIRE 544 240 1232 240
            WIRE 1232 240 1232 512
            WIRE 1232 512 1376 512
            WIRE 1232 512 1232 1552
            WIRE 1232 1552 1376 1552
            WIRE 1232 1552 1232 1904
            WIRE 1232 1904 2208 1904
            WIRE 1232 240 2288 240
            WIRE 2288 240 2288 512
            WIRE 2288 512 2400 512
        END BRANCH
        BEGIN BRANCH clr_ref
            WIRE 1280 896 2032 896
            WIRE 2032 896 2400 896
            WIRE 1280 896 1280 1296
            WIRE 1280 1296 1280 1616
            WIRE 1280 1616 1376 1616
            WIRE 1280 1296 1376 1296
            BEGIN DISPLAY 2032 896 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN INSTANCE XLXI_5 1376 1392 R0
        END INSTANCE
        BEGIN BRANCH auto_ref_s
            WIRE 1760 1168 1936 1168
            WIRE 1936 1168 2064 1168
            WIRE 2064 1168 2064 1296
            BEGIN DISPLAY 1936 1168 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH p_auto_ref
            WIRE 1760 1360 1952 1360
            WIRE 1952 1360 2064 1360
            BEGIN DISPLAY 1952 1360 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH ref_max(15:0)
            WIRE 496 1360 1376 1360
        END BRANCH
        BEGIN BRANCH clk_j
            WIRE 400 1232 544 1232
            WIRE 544 1232 544 1792
            WIRE 544 1792 544 1920
            WIRE 544 1920 608 1920
            WIRE 544 1792 576 1792
            WIRE 576 1792 608 1792
            WIRE 544 1232 1376 1232
            BEGIN DISPLAY 576 1792 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH ki_end
            WIRE 1760 1488 1824 1488
            WIRE 1824 1488 1840 1488
            WIRE 1824 832 1824 1488
            WIRE 1824 832 2032 832
            WIRE 2032 832 2400 832
            BEGIN DISPLAY 2032 832 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        INSTANCE XLXI_92 1840 1520 R0
        INSTANCE XLXI_70 2064 1488 R0
        BEGIN BRANCH XLXN_344
            WIRE 2064 1424 2064 1488
        END BRANCH
        BEGIN BRANCH kid
            WIRE 2320 1360 2400 1360
            BEGIN DISPLAY 2400 1360 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_ad_tri
            WIRE 2784 1152 2816 1152
            BEGIN DISPLAY 2816 1152 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_ready
            WIRE 2784 576 2816 576
            BEGIN DISPLAY 2816 576 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_clr_ref
            WIRE 2784 832 2816 832
            BEGIN DISPLAY 2816 832 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_ld_rcd
            WIRE 2784 1088 2832 1088
            BEGIN DISPLAY 2832 1088 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_ld_brst
            WIRE 2784 1024 2832 1024
            BEGIN DISPLAY 2832 1024 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_add_mx
            WIRE 2784 640 2816 640
            BEGIN DISPLAY 2816 640 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_doe2_n
            WIRE 2784 512 2880 512
            WIRE 2880 512 3008 512
            BEGIN DISPLAY 2880 512 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_doe_n
            WIRE 2784 448 2880 448
            WIRE 2880 448 2992 448
            WIRE 2992 432 3008 432
            WIRE 2992 432 2992 448
            BEGIN DISPLAY 2880 448 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_ld_cslt
            WIRE 2784 960 2832 960
            BEGIN DISPLAY 2832 960 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_we_p
            WIRE 2784 768 2832 768
            BEGIN DISPLAY 2832 768 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_cas_p
            WIRE 2784 896 2832 896
            BEGIN DISPLAY 2832 896 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH pre_sd_ras_p
            WIRE 2784 704 2832 704
            BEGIN DISPLAY 2832 704 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN INSTANCE XLXI_6 2400 1184 R0
        END INSTANCE
        IOMARKER 400 240 clk_i R180 28
        IOMARKER 512 1008 rcd_c_max(1:0) R180 28
        IOMARKER 2128 1024 Act_st(2:0) R180 28
        IOMARKER 2096 960 write_st R180 28
        IOMARKER 480 1680 ki_max(3:0) R180 28
        IOMARKER 2848 1840 ad_tri R0 28
        IOMARKER 496 1360 ref_max(15:0) R180 28
        IOMARKER 400 1232 clk_j R180 28
        IOMARKER 496 640 burst_max(2:0) R180 28
        IOMARKER 512 720 cas_lat_max(1:0) R180 28
        INSTANCE XLXI_122 3008 304 R0
        INSTANCE XLXI_125 3008 464 R0
        INSTANCE XLXI_127 3248 480 R0
        INSTANCE XLXI_128 3248 640 R0
        BEGIN BRANCH XLXN_511
            WIRE 3232 352 3248 352
        END BRANCH
        BEGIN BRANCH XLXN_512
            WIRE 3232 432 3248 432
            WIRE 3248 416 3248 432
        END BRANCH
        BEGIN BRANCH XLXN_513
            WIRE 3232 272 3248 272
            WIRE 3248 272 3248 288
        END BRANCH
        BEGIN BRANCH XLXN_514
            WIRE 3232 512 3248 512
        END BRANCH
        BEGIN BRANCH XLXN_515
            WIRE 3504 352 3520 352
            WIRE 3520 352 3520 416
            WIRE 3520 416 3536 416
        END BRANCH
        INSTANCE XLXI_129 3536 544 R0
        BEGIN BRANCH XLXN_517
            WIRE 3504 544 3520 544
            WIRE 3520 480 3520 544
            WIRE 3520 480 3536 480
        END BRANCH
        INSTANCE XLXI_126 3008 544 R0
        INSTANCE XLXI_124 3008 384 R0
        BEGIN BRANCH brst_end_m1
            WIRE 2800 272 2864 272
            WIRE 2864 272 3008 272
            BEGIN DISPLAY 2864 272 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH rcd_end_int
            WIRE 3152 576 3216 576
            WIRE 3216 576 3248 576
            BEGIN DISPLAY 3216 576 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH brst_end
            WIRE 1104 448 1136 448
            WIRE 1136 336 1136 448
            WIRE 1136 336 1808 336
            WIRE 1808 336 1968 336
            WIRE 1968 336 1968 576
            WIRE 1968 576 2400 576
            WIRE 1968 336 2848 336
            WIRE 2848 336 2992 336
            WIRE 2992 336 2992 352
            WIRE 2992 352 3008 352
            BEGIN DISPLAY 1808 336 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
            BEGIN DISPLAY 2848 336 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        INSTANCE XLXI_154 3856 432 R0
        INSTANCE XLXI_155 3856 512 R0
        INSTANCE XLXI_156 3856 592 R0
        INSTANCE XLXI_152 3856 352 R0
        BEGIN BRANCH XLXN_627
            WIRE 3792 448 3824 448
            WIRE 3824 448 3824 480
            WIRE 3824 480 3856 480
            WIRE 3824 480 3824 560
            WIRE 3824 560 3856 560
            WIRE 3824 320 3856 320
            WIRE 3824 320 3824 400
            WIRE 3824 400 3824 448
            WIRE 3824 400 3856 400
        END BRANCH
        BEGIN BRANCH XLXN_631
            WIRE 4080 320 4096 320
            WIRE 4096 320 4112 320
        END BRANCH
        BEGIN BRANCH XLXN_632
            WIRE 4080 400 4096 400
            WIRE 4096 400 4112 400
        END BRANCH
        BEGIN BRANCH XLXN_633
            WIRE 4080 480 4112 480
        END BRANCH
        BEGIN BRANCH XLXN_634
            WIRE 4080 560 4112 560
        END BRANCH
        BUSTAP 4208 320 4112 320
        BUSTAP 4208 400 4112 400
        BUSTAP 4208 480 4112 480
        BUSTAP 4208 560 4112 560
        BEGIN BRANCH sd_doe_n_temp(3:0)
            WIRE 4208 320 4208 400
            WIRE 4208 400 4208 448
            WIRE 4208 448 4208 480
            WIRE 4208 480 4208 560
            WIRE 4208 448 4272 448
            BEGIN DISPLAY 4272 448 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN INSTANCE XLXI_169 3472 1616 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_159 3472 1088 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_166 3472 1360 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_170 3472 1872 R0
        END INSTANCE
        INSTANCE XLXI_186 3472 2272 R0
        BEGIN INSTANCE XLXI_167 4032 1088 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_168 4032 1584 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_164 4032 1360 R0
        END INSTANCE
        INSTANCE XLXI_173 4032 2272 R0
        INSTANCE XLXI_174 4032 1952 R0
        BEGIN BRANCH XLXN_635(8:0)
            WIRE 3856 928 3936 928
            WIRE 3936 928 3936 992
            WIRE 3936 992 4032 992
        END BRANCH
        BEGIN BRANCH XLXN_636(3:0)
            WIRE 3856 1200 3936 1200
            WIRE 3936 1200 3936 1280
            WIRE 3936 1280 4032 1280
        END BRANCH
    END SHEET
END SCHEMATIC