_primary.vhd

SDRAM 控制器

library verilog;
use verilog.vl_types.all;
entity altddio_in is
    generic(
        width           : integer := 1;
        power_up_high   : string  := "OFF";
        intended_device_family: string  := "MERCURY";
        lpm_type        : string  := "altddio_in"
    );
    port(
        datain          : in     vl_logic_vector;
        inclock         : in     vl_logic;
        inclocken       : in     vl_logic;
        aset            : in     vl_logic;
        aclr            : in     vl_logic;
        dataout_h       : out    vl_logic_vector;
        dataout_l       : out    vl_logic_vector
    );
end altddio_in;