diff --git a/libopenfpga/libpcf/src/base/io_pin_table.cpp b/libopenfpga/libpcf/src/base/io_pin_table.cpp
index fa7656111..742e5cf32 100644
--- a/libopenfpga/libpcf/src/base/io_pin_table.cpp
+++ b/libopenfpga/libpcf/src/base/io_pin_table.cpp
@@ -29,12 +29,30 @@ IoPinTable::io_pin_table_range IoPinTable::internal_pins() const {
 /************************************************************************
  * Public Accessors : Basic data query 
  ***********************************************************************/
-openfpga::BasicPort IoPinTable::internal_pin(const IoPinTableId& pin_id) const {
+BasicPort IoPinTable::internal_pin(const IoPinTableId& pin_id) const {
   /* validate the pin_id */
   VTR_ASSERT(valid_pin_id(pin_id));
   return internal_pins_[pin_id]; 
 }
 
+BasicPort IoPinTable::external_pin(const IoPinTableId& pin_id) const {
+  /* validate the pin_id */
+  VTR_ASSERT(valid_pin_id(pin_id));
+  return external_pins_[pin_id]; 
+}
+
+e_side IoPinTable::pin_side(const IoPinTableId& pin_id) const {
+  /* validate the pin_id */
+  VTR_ASSERT(valid_pin_id(pin_id));
+  return pin_sides_[pin_id]; 
+}
+
+IoPinTable::e_io_direction IoPinTable::pin_direction(const IoPinTableId& pin_id) const {
+  /* validate the pin_id */
+  VTR_ASSERT(valid_pin_id(pin_id));
+  return pin_directions_[pin_id]; 
+}
+
 bool IoPinTable::empty() const {
   return 0 == pin_ids_.size();
 }
@@ -63,6 +81,26 @@ IoPinTableId IoPinTable::create_pin() {
   return pin_id;
 }
 
+void IoPinTable::set_internal_pin(const IoPinTableId& pin_id, const BasicPort& pin) {
+  VTR_ASSERT(valid_pin_id(pin_id));
+  internal_pins_[pin_id] = pin;
+}
+
+void IoPinTable::set_external_pin(const IoPinTableId& pin_id, const BasicPort& pin) {
+  VTR_ASSERT(valid_pin_id(pin_id));
+  external_pins_[pin_id] = pin;
+}
+
+void IoPinTable::set_pin_side(const IoPinTableId& pin_id, const e_side& side) {
+  VTR_ASSERT(valid_pin_id(pin_id));
+  pin_sides_[pin_id] = side;
+}
+
+void IoPinTable::set_pin_direction(const IoPinTableId& pin_id, const e_io_direction& direction) {
+  VTR_ASSERT(valid_pin_id(pin_id));
+  pin_directions_[pin_id] = direction;
+}
+
 /************************************************************************
  * Internal invalidators/validators 
  ***********************************************************************/
diff --git a/libopenfpga/libpcf/src/base/io_pin_table.h b/libopenfpga/libpcf/src/base/io_pin_table.h
index d01e2307e..879e3f259 100644
--- a/libopenfpga/libpcf/src/base/io_pin_table.h
+++ b/libopenfpga/libpcf/src/base/io_pin_table.h
@@ -72,18 +72,23 @@ class IoPinTable {
      */
     io_pin_table_range internal_pins() const;
   public: /* Public Accessors: Basic data query */
-    /* Get the internal pin */
+    /* Get the basic information for a pin */
     openfpga::BasicPort internal_pin(const IoPinTableId& pin_id) const;
-
+    openfpga::BasicPort external_pin(const IoPinTableId& pin_id) const;
+    e_side pin_side(const IoPinTableId& pin_id) const;
+    e_io_direction pin_direction(const IoPinTableId& pin_id) const;
     /* Check if there are any pins */
     bool empty() const;
-
   public: /* Public Mutators */
     /* Reserve to be memory efficent */
     void reserve_pins(const size_t& num_pins);
-
     /* Add a pin to storage */
     IoPinTableId create_pin();
+    /* Set pin attributes */
+    void set_internal_pin(const IoPinTableId& pin_id, const BasicPort& pin);
+    void set_external_pin(const IoPinTableId& pin_id, const BasicPort& pin);
+    void set_pin_side(const IoPinTableId& pin_id, const e_side& side);
+    void set_pin_direction(const IoPinTableId& pin_id, const e_io_direction& direction);
 
   public: /* Public invalidators/validators */
     /* Show if the pin id is a valid for data queries */