dhwk

[raggedstone] / dhwk_old / source / pfs.vhd

diff --git a/dhwk_old/source/pfs.vhd b/dhwk_old/source/pfs.vhd
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+--+-----------------------------------------+
+--|  pfs                                    |
+--+-----------------------------------------+
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity pfs is
+port (
+   clk         : in std_logic;
+   a           : in std_logic;
+   y           : out std_logic
+
+);   
+end pfs;
+
+architecture rtl of pfs is
+
+       signal a_s      : std_logic;
+       
+begin
+
+       SYNCP: process( clk, a )
+       begin
+       
+        if ( rising_edge(clk) ) then
+                       a_s <= a;
+               end if;
+        
+       end process SYNCP;
+
+       y <= a and (not a_s);
+       
+end rtl;
+