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--- dt-code-sequ [2012/01/18 11:08]
beckmanf typos
+++ dt-code-sequ [2012/06/11 10:35]
beckmanf concurrent flipflop
@@ Line 16: / Line 16: @@
   in_i     :        in std_ulogic;
   out_o    :        out std_ulogic);
-end;
+end entity flipflop;
 architecture rtl of fliplfop is
@@ Line 33: / Line 33: @@
 out_o <= q;
-end;
+end architecture rtl;
+</code>
+Ein Flipflop kann alternativ mit einem concurrent statement beschrieben werden.
+<code vhdl>
+entity flipflop is
+  port(
+  clk      :        in std_ulogic;
+  reset_n  :        in std_ulogic;
+  in_i     :        in std_ulogic;
+  out_o    :        out std_ulogic);
+end entity flipflop;
+architecture rtl of fliplfop is
+  signal q : std_ulogic;
+begin
+q <= '0' when reset_n = '0' else in_i when rising_edge(clk);
+out_o <= q;
+end architecture rtl;
 </code>