--- eda/share/pdk/gf180mcuC/libs.ref/gf180mcu_fd_io/lef/gf180mcu_fd_io.lef	2023-02-13 13:43:43.000000000 +0100
+++ eda/share/pdk/gf180mcuC/libs.ref/gf180mcu_fd_io/lef/gf180mcu_fd_io.lef	2023-03-30 10:19:34.792862000 +0200
@@ -3,6 +3,20 @@
   DIVIDERCHAR "/" ;
   BUSBITCHARS "[]" ;
+
+SITE GF_IO_Site
+  SYMMETRY X Y ;
+  CLASS PAD ;
+  SIZE 1 BY 350 ;
+END GF_IO_Site
+
+SITE GF_COR_Site
+  SYMMETRY X Y ;
+  CLASS PAD ;
+  SIZE 355 BY 355 ;
+END GF_COR_Site
+
+
 MACRO gf180mcu_fd_io__asig_5p0
-  CLASS PAD INOUT ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__asig_5p0 ;
   ORIGIN 0.000 0.000 ;
@@ -815,5 +829,5 @@
 
 MACRO gf180mcu_fd_io__bi_24t
-  CLASS PAD INOUT ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__bi_24t ;
   ORIGIN 0.000 0.000 ;
@@ -1669,5 +1683,5 @@
 
 MACRO gf180mcu_fd_io__bi_t
-  CLASS PAD INOUT ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__bi_t ;
   ORIGIN 0.000 0.000 ;
@@ -3807,5 +3821,5 @@
 
 MACRO gf180mcu_fd_io__dvdd
-  CLASS PAD POWER ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__dvdd ;
   ORIGIN 0.000 0.000 ;
@@ -4600,5 +4614,5 @@
 
 MACRO gf180mcu_fd_io__dvss
-  CLASS PAD POWER ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__dvss ;
   ORIGIN 0.000 0.000 ;
@@ -7609,5 +7623,5 @@
 
 MACRO gf180mcu_fd_io__in_c
-  CLASS PAD INPUT ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__in_c ;
   ORIGIN 0.000 0.000 ;
@@ -8416,5 +8430,5 @@
 
 MACRO gf180mcu_fd_io__in_s
-  CLASS PAD INPUT ;
+  CLASS PAD AREAIO ;
   FOREIGN gf180mcu_fd_io__in_s ;
   ORIGIN 0.000 0.000 ;