_primary.vhd

一个非常好的dc使用书籍 一个非常好的dc使用书籍

library verilog;
use verilog.vl_types.all;
entity mercury_lcell is
    generic(
        operation_mode  : string  := "normal";
        output_mode     : string  := "reg_and_comb";
        packed_mode     : string  := "false";
        multiplier_output: string  := "false";
        multiplier_mux_source: string  := "gnd";
        lut_mask        : string  := "ffff";
        power_up        : string  := "low";
        cin_used        : string  := "false";
        cin0_used       : string  := "false";
        cin1_used       : string  := "false";
        lpm_type        : string  := "mercury_lcell"
    );
    port(
        clk             : in     vl_logic;
        dataa           : in     vl_logic;
        datab           : in     vl_logic;
        datac           : in     vl_logic;
        datad           : in     vl_logic;
        aclr            : in     vl_logic;
        aload           : in     vl_logic;
        sclr            : in     vl_logic;
        sload           : in     vl_logic;
        ena             : in     vl_logic;
        apre            : in     vl_logic;
        cin             : in     vl_logic;
        cin0            : in     vl_logic;
        cin1            : in     vl_logic;
        multsela        : in     vl_logic;
        multselb        : in     vl_logic;
        devclrn         : in     vl_logic;
        devpor          : in     vl_logic;
        combout         : out    vl_logic;
        regout          : out    vl_logic;
        cout            : out    vl_logic;
        cout0           : out    vl_logic;
        cout1           : out    vl_logic;
        multout         : out    vl_logic
    );
end mercury_lcell;