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ibm2030.IBM2030/FLL.vhd

40 lines
797 B
VHDL

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-- Company:
-- Engineer:
--
-- Create Date: 15:25:51 06/17/2015
-- Design Name:
-- Module Name: FLL - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
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library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
-- FLL is a level-triggered SR flip-flop
entity FLL is port(S,R: in STD_LOGIC; signal Q:out STD_LOGIC); end;
architecture slt of FLL is
begin
process(S,R)
begin
if (S='1') then -- Set takes priority
Q<='1' after 1ns;
elsif (R='1') then
Q<='0' after 1ns;
end if;
end process;
end slt;