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先用4个2-4线译码级联做4-16线译码器，低2位地址A0，A1并联。再用1个，接A2，A3地址译码，4个输出端做前面那4个的片选，即接到使能控制端。则4位地址A3A2A1A0译码输出端有16个。
4_16译码器设计 library ieee; use ieee.std_logic_1164.all; entity decode4_16 is port(a:in std_logic_vector(3 downto 0); y:out std_logic_vector(15 downto 0)); end; architecture one of decode4_16 is begin process(a) begin
LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;ENTITY decode_4to16 IS PORT(A0,A1,A2,A3,CLR:IN STD_LOGIC;Y:OUT STD_LOGIC_VECTOR(7 DOWNTO 0));END decode_4to16;ARCHITECTURE rtl OF decode_4to16 IS SIGNAL indata:STD_LOGIC_VECTOR(3 DOWNTO 0);BEGIN indata<=A0&A1&A2&A3;PROCES...
用一个简单的case语句即可实现。
when others => y(16) <= '0'; end case ; end process; DIN(3)<=not(y(15)); DIN(2)<=not(y(10) and y(11) and y(14)); DIN(1)<=not(y(6) and y(7) and y(9)and y(11) and y(13) and y(14)); DIN(0)<=not(y(5)and y(7) and y(13) and y(15)); ...
4-16译码器VHDL语言设计, library ieee; use ieee.std_logic_1164.all; entity cjg4_16 is port(DATA:in std_logic_vector(3 downto 0); EN :in std_logic; Y:out std_logic_vector(15 downto 0)); end entity cjg4_16; architecture arch1 of cjg4_16 is
6、(13) <= '0'when "1110" => y(14) <= '0'when "1111" => y(15) <= '0'when others => y(16) <= '0'end case ;end process;DIN(3)<=not(y(15);DIN(2)<=not(y(10) and y(11) and y(14);DIN(1)<=not(y(6) and y(7) and y(9)and y(11) and y(13) and y...
whenothers=>y(16)<='0'; endcase; endprocess; DIN(3)<=not(y(15)); DIN(2)<=not(y(10)andy(11)andy(14)); DIN(1)<=not(y(6)andy(7)andy(9)andy(11)andy(13)andy(14)); DIN(0)<=not(y(5)andy(7)andy(13)andy(15)); ...
16线4线优先编码器vhdl设计评分: 经硬件测试可以通过,如果打不开的话就用文本打开 16线4线优先编码器 优先编码器 vhdl cpld FPGA2009-06-02 上传大小:1732B 所需:49积分/C币 基于VHDL的编码器与译码器的设计与实现 这是一个EDA平台下,以VHDL语言设计的编码器译码器的实现,内附截图 是一个完整的课程设计报...