--- /dev/null
+-------------------------------------------------------------------------\r
+--\r
+-- Filename: interval.vhd\r
+-- =========\r
+--\r
+-- Short Description:\r
+-- ==================\r
+-- Interval timer entity declaraton.\r
+--\r
+-------------------------------------------------------------------------\r
+\r
+library ieee;\r
+use ieee.std_logic_1164.all;\r
+\r
+entity interval is\r
+ generic\r
+ (\r
+ CLK_FREQ : integer;\r
+ INTERVAL_TIME_MS : integer\r
+ );\r
+ port\r
+ (\r
+ clk : in std_logic;\r
+ res_n : in std_logic;\r
+ active : out std_logic\r
+ );\r
+end entity interval;\r