diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2127d07..e4c5392 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,6 +23,7 @@ jobs:
           - 3.9
           - "3.10"
           - "3.11"
+          - "3.12"
         include:
           - os: ubuntu-latest
 
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 5b13f32..354c013 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -13,3 +13,5 @@ sphinx:
 python:
   install:
     - requirements: docs/requirements.txt
+    - method: pip
+      path: .
diff --git a/setup.py b/setup.py
index 7674a72..8d0d7a0 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ setuptools.setup(
     include_package_data=True,
     python_requires='>=3.6',
     install_requires=[
-        "systemrdl-compiler >= 1.25.1, < 2",
+        "systemrdl-compiler >= 1.27.0, < 2",
         "Jinja2>=2.11",
     ],
     entry_points = {
@@ -43,6 +43,7 @@ setuptools.setup(
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3 :: Only",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
diff --git a/src/peakrdl_regblock/hwif/generators.py b/src/peakrdl_regblock/hwif/generators.py
index 7127d34..68ac0c2 100644
--- a/src/peakrdl_regblock/hwif/generators.py
+++ b/src/peakrdl_regblock/hwif/generators.py
@@ -230,41 +230,35 @@ class OutputStructGenerator_Hier(HWIFStructGenerator):
 #-------------------------------------------------------------------------------
 class InputStructGenerator_TypeScope(InputStructGenerator_Hier):
     def get_typdef_name(self, node:'Node') -> str:
-        scope_path = node.inst.get_scope_path("__")
+        scope_path = node.get_global_type_name("__")
         if scope_path is None:
             # Unable to determine a reusable type name. Fall back to hierarchical path
             # Add prefix to prevent collision when mixing namespace methods
             scope_path = "xtern__" + super().get_typdef_name(node)
 
-        if isinstance(node, FieldNode):
-            extra_suffix = get_field_type_name_suffix(node)
+        if node.external:
+            # Node generates alternate external signals
+            extra_suffix = "__external"
         else:
             extra_suffix = ""
 
-        if node.external:
-            # Node generates alternate external signals
-            extra_suffix += "__external"
-
-        return f'{scope_path}__{node.type_name}{extra_suffix}__in_t'
+        return f'{scope_path}{extra_suffix}__in_t'
 
 class OutputStructGenerator_TypeScope(OutputStructGenerator_Hier):
     def get_typdef_name(self, node:'Node') -> str:
-        scope_path = node.inst.get_scope_path("__")
+        scope_path = node.get_global_type_name("__")
         if scope_path is None:
             # Unable to determine a reusable type name. Fall back to hierarchical path
             # Add prefix to prevent collision when mixing namespace methods
             scope_path = "xtern__" + super().get_typdef_name(node)
 
-        if isinstance(node, FieldNode):
-            extra_suffix = get_field_type_name_suffix(node)
+        if node.external:
+            # Node generates alternate external signals
+            extra_suffix = "__external"
         else:
             extra_suffix = ""
 
-        if node.external:
-            # Node generates alternate external signals
-            extra_suffix += "__external"
-
-        return f'{scope_path}__{node.type_name}{extra_suffix}__out_t'
+        return f'{scope_path}{extra_suffix}__out_t'
 
 #-------------------------------------------------------------------------------
 class EnumGenerator:
@@ -302,26 +296,3 @@ class EnumGenerator:
             + ",\n".join(lines)
             + f"\n}} {prefix}_e;"
         )
-
-
-def get_field_type_name_suffix(field: FieldNode) -> str:
-    """
-    Fields may reuse the same type, but end up instantiating different widths
-    Uniquify the type name further if the field width was overridden when instantiating
-    """
-    if field.inst.original_def is None:
-        return ""
-
-    if field.inst.original_def.type_name is None:
-        # is an anonymous definition. No extra suffix needed
-        return ""
-
-    if "fieldwidth" in field.list_properties():
-        # fieldwidth was explicitly set. This type name is already sufficiently distinct
-        return ""
-
-    if field.width == 1:
-        # field width is the default. Skip suffix
-        return ""
-
-    return f"_w{field.width}"