encode.tdf

服务器的的板在载控制器的AHDL程序,包括原理图编译,用在EPM7128上(CPLD).

--  Title Statement (optional)
TITLE "80C390 IO Input Port Select Encoder";

--  Subdesign Section
SUBDESIGN encode
(
        A[3..0]       : INPUT;
        EN[2..0]      : OUTPUT;
)

--  Variable Section (optional)

--  Logic Section
Begin
        --  Truth Table Statement
TABLE
      A[3..0] => EN[2..0];
      B"0000"  => B"000";
      B"0001"  => B"001";
      B"0010"  => B"010";
      B"0011"  => B"011";
      B"0100"  => B"100";
      B"0101"  => B"101";
      B"0110"  => B"110";
      B"0111"  => B"111";
      B"1XX0"  => B"010";
      B"1XX1"  => B"111";
END TABLE;

        --  Assert Statement
End;