added io_register.vhd

vhdl/rtl/vhdl/io_register.vhd

@@ -0,0 +1,47 @@
+LIBRARY IEEE;
+    USE IEEE.std_logic_1164.ALL;
+    USE IEEE.numeric_std.ALL;
+
+PACKAGE io_register_pkg IS
+    TYPE access_width_t IS (LONGWORD, WORD, BYTE);
+    
+    COMPONENT io_register IS
+    /*
+        GENERIC
+        (
+            NULL
+        );
+    */
+        PORT
+        (
+            adress          : IN UNSIGNED (31 DOWNTO 0);
+            address_mask    : IN UNSIGNED (31 DOWNTO 0);
+            access_type     : IN access_width_t
+            
+        );
+    END COMPONENT;
+END PACKAGE;
+
+----------------------------------------------------------------------------------------------------------------------------------------
+LIBRARY IEEE;
+    USE IEEE.std_logic_1164.ALL;
+    USE IEEE.numeric_std.ALL;
+
+ENTITY io_register IS
+/*
+    GENERIC
+    (
+        NULL
+    );
+*/
+    PORT
+    (
+        adress          : IN UNSIGNED (31 DOWNTO 0);
+        address_mask    : IN UNSIGNED (31 DOWNTO 0);
+        access_type     : IN access_width_t
+    );
+END ENTITY io_register;
+
+ARCHITECTURE rtl OF io_register IS
+BEGIN
+END rtl;