t159.vhd

来自「Workshop vhdl code from Esperan」· VHDL 代码 · 共 17 行

--
-- This file tests support for the use of the 
-- attribute 'not stable for edge detection.
--
entity TEST is 
	port( D, CLK : in bit;
	      Q : out bit);
end TEST;
architecture T159 of TEST is
begin
	process
	begin
		wait until (CLK='1' and (not CLK'stable));
		Q <= D;
	end process;
end T159;