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]

            PIN cslt_end cslt_end
        END BLOCK
        BEGIN BLOCK XLXI_1 brst_cntr
            PIN Reset locked_i_int
            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_int
            PIN Clk clk_i
            PIN ld_rcd ld_rcd
            PIN rcd_max(1:0) rcd_c_max(1:0)
            PIN rcd_end rcd_end_int
        END BLOCK
        BEGIN BLOCK XLXI_22 srl16
            PIN A0 XLXN_228
            PIN A1 XLXN_228
            PIN A2 XLXN_229
            PIN A3 XLXN_228
            PIN CLK clk_j
            PIN D clk_j
            PIN Q locked_j_int
        END BLOCK
        BEGIN BLOCK XLXI_66 gnd
            PIN G XLXN_228
        END BLOCK
        BEGIN BLOCK XLXI_67 vcc
            PIN P XLXN_229
        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_j_int
            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_i_int
            PIN Clk clk_j
            PIN clr_ref clr_ref
            PIN ref_max(15:0) ref_max(15:0)
            PIN auto_ref auto_ref_s
            PIN p_auto_ref p_auto_ref
        END BLOCK
        BEGIN BLOCK XLXI_92 inv
            PIN I ki_end
            PIN O XLXN_344
        END BLOCK
        BEGIN BLOCK XLXI_70 or3
            PIN I0 XLXN_344
            PIN I1 p_auto_ref
            PIN I2 auto_ref_s
            PIN O kid
        END BLOCK
        BEGIN BLOCK XLXI_6 sdrmc_state
            PIN Reset locked_i_int
            PIN Clk clk_i
            PIN brst_end brst_end
            PIN cslt_end cslt_end
            PIN rcd_end rcd_end_int
            PIN auto_ref auto_ref_in
            PIN ki_end ki_end
            PIN clr_ref clr_ref
            PIN write_st write_st
            PIN Act_st(2:0) Act_st(2:0)
            PIN pre_sd_doe_n pre_sd_doe_n
            PIN pre_sd_doe2_n pre_sd_doe2_n
            PIN pre_sd_ready pre_sd_ready
            PIN pre_sd_add_mx pre_sd_add_mx
            PIN pre_sd_ras_p pre_sd_ras_p
            PIN pre_sd_we_p pre_sd_we_p
            PIN pre_clr_ref pre_clr_ref
            PIN pre_sd_cas_p pre_sd_cas_p
            PIN pre_ld_cslt pre_ld_cslt
            PIN pre_ld_brst pre_ld_brst
            PIN pre_ld_rcd pre_ld_rcd
            PIN pre_ad_tri pre_ad_tri
        END BLOCK
        BEGIN BLOCK XLXI_122 inv
            PIN I brst_end_m1
            PIN O XLXN_513
        END BLOCK
        BEGIN BLOCK XLXI_124 inv
            PIN I brst_end
            PIN O XLXN_511
        END BLOCK
        BEGIN BLOCK XLXI_125 inv
            PIN I pre_sd_doe_n
            PIN O XLXN_512
        END BLOCK
        BEGIN BLOCK XLXI_126 inv
            PIN I pre_sd_doe2_n
            PIN O XLXN_514
        END BLOCK
        BEGIN BLOCK XLXI_127 and3
            PIN I0 XLXN_512
            PIN I1 XLXN_511
            PIN I2 XLXN_513
            PIN O XLXN_515
        END BLOCK
        BEGIN BLOCK XLXI_128 and2
            PIN I0 rcd_end_int
            PIN I1 XLXN_514
            PIN O XLXN_517
        END BLOCK
        BEGIN BLOCK XLXI_129 or2
            PIN I0 XLXN_517
            PIN I1 XLXN_515
            PIN O XLXN_627
        END BLOCK
        BEGIN BLOCK XLXI_152 inv
            PIN I XLXN_627
            PIN O XLXN_631
        END BLOCK
        BEGIN BLOCK XLXI_154 inv
            PIN I XLXN_627
            PIN O XLXN_632
        END BLOCK
        BEGIN BLOCK XLXI_155 inv
            PIN I XLXN_627
            PIN O XLXN_633
        END BLOCK
        BEGIN BLOCK XLXI_156 inv
            PIN I XLXN_627
            PIN O XLXN_634
        END BLOCK
        BEGIN BLOCK XLXI_169 mux2to1_11
            PIN s
            PIN in_0(10:0)
            PIN in_1(10:0)
            PIN out_y(10:0)
        END BLOCK
        BEGIN BLOCK XLXI_159 mux2to1_9
            PIN s
            PIN in_0(8:0)
            PIN in_1(8:0)
            PIN out_y(8:0) XLXN_635(8:0)
        END BLOCK
        BEGIN BLOCK XLXI_166 mux2to1_4
            PIN s
            PIN in_0(3:0)
            PIN in_1(3:0)
            PIN out_y(3:0) XLXN_636(3:0)
        END BLOCK
        BEGIN BLOCK XLXI_170 mux2to1_11
            PIN s
            PIN in_0(10:0)
            PIN in_1(10:0)
            PIN out_y(10:0)
        END BLOCK
        BEGIN BLOCK XLXI_186 fd
            PIN C
            PIN D
            PIN Q
        END BLOCK
        BEGIN BLOCK XLXI_167 fd_9
            PIN q(8:0)
            PIN clk
            PIN d(8:0) XLXN_635(8:0)
        END BLOCK
        BEGIN BLOCK XLXI_168 fd_11
            PIN clk
            PIN d(10:0)
            PIN q(10:0)
        END BLOCK
        BEGIN BLOCK XLXI_164 fd_4
            PIN q(3:0)
            PIN clk
            PIN d(3:0) XLXN_636(3:0)
        END BLOCK
        BEGIN BLOCK XLXI_173 fde
            PIN C
            PIN CE
            PIN D
            PIN Q
        END BLOCK
        BEGIN BLOCK XLXI_174 fde
            PIN C
            PIN CE
            PIN D
            PIN Q
        END BLOCK
    END NETLIST
    BEGIN SHEET 1 5440 3520
        BEGIN INSTANCE XLXI_2 1376 672 R0
        END INSTANCE
        BEGIN BRANCH cas_lat_max(1:0)
            WIRE 512 720 1360 720
            WIRE 1360 640 1376 640
            WIRE 1360 640 1360 720
        END BRANCH
        BEGIN BRANCH ld_cslt
            WIRE 1312 576 1376 576
            BEGIN DISPLAY 1312 576 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH burst_max(2:0)
            WIRE 496 640 720 640
        END BRANCH
        BEGIN BRANCH ld_brst
            WIRE 528 576 720 576
            BEGIN DISPLAY 528 576 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH rcd_c_max(1:0)
            WIRE 512 1008 720 1008
        END BRANCH
        BEGIN BRANCH ld_rcd
            WIRE 560 944 720 944
            BEGIN DISPLAY 560 944 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH cslt_end
            WIRE 1760 448 1824 448
            WIRE 1824 448 1824 640
            WIRE 1824 640 2032 640
            WIRE 2032 640 2400 640
            BEGIN DISPLAY 2032 640 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH rcd_end_int
            WIRE 1104 816 1696 816
            WIRE 1696 704 2064 704
            WIRE 2064 704 2400 704
            WIRE 1696 704 1696 816
            BEGIN DISPLAY 2064 704 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH auto_ref_in
            WIRE 2112 768 2400 768
            BEGIN DISPLAY 2112 768 ATTR Name
                ALIGNMENT SOFT-RIGHT
            END DISPLAY
        END BRANCH
        BEGIN BRANCH write_st
            WIRE 2096 960 2400 960
        END BRANCH
        BEGIN BRANCH Act_st(2:0)
            WIRE 2128 1024 2400 1024
        END BRANCH
        BEGIN BRANCH locked_i_int
            WIRE 640 288 1328 288
            WIRE 1328 288 1824 288
            WIRE 1824 288 2128 288
            WIRE 2128 288 2128 448
            WIRE 2128 448 2400 448
            WIRE 1328 288 1328 448
            WIRE 1328 448 1376 448
            WIRE 1328 448 1328 1168
            WIRE 1328 1168 1376 1168
            WIRE 640 288 640 448
            WIRE 640 448 720 448
            WIRE 640 448 640 816
            WIRE 640 816 720 816
            BEGIN DISPLAY 1824 288 ATTR Name
                ALIGNMENT SOFT-BCENTER
            END DISPLAY
        END BRANCH
        BEGIN BRANCH brst_end_m1
            WIRE 1104 640 1120 640
            BEGIN DISPLAY 1120 640 ATTR Name
                ALIGNMENT SOFT-LEFT
            END DISPLAY
        END BRANCH
        BEGIN INSTANCE XLXI_1 720 672 R0
        END INSTANCE
        BEGIN INSTANCE XLXI_4 720 1040 R0
        END INSTANCE
        BEGIN BRANCH ki_max(3:0)
            WIRE 480 1680 1376 1680
        END BRANCH
        BEGIN BRANCH locked_j_int
            WIRE 992 1856 1008 1856
            WIRE 1008 1488 1008 1856
            WIRE 1008 1488 1376 1488
        END BRANCH
        BEGIN BRANCH XLXN_228
            WIRE 560 1984 608 1984
            WIRE 560 1984 560 2048
            WIRE 560 2048 608 2048
            WIRE 560 2048 560 2176
            WIRE 560 2176 560 2192
            WIRE 560 2176 608 2176
        END BRANCH
        BEGIN BRANCH XLXN_229
            WIRE 512 2112 608 2112
        END BRANCH
        BEGIN BRANCH ad_tri
            WIRE 2592 1840 2848 1840
        END BRANCH
        BEGIN BRANCH XLXN_232
            WIRE 2064 2096 2208 2096
        END BRANCH
        BEGIN BRANCH XLXN_233
            WIRE 2160 1968 2208 1968
            WIRE 2160 1968 2160 2032
            WIRE 2160 2032 2208 2032