Reverse field definition.
diff --git a/code-generation/types-base/src/main/java/org/apache/plc4x/plugins/codegenerator/types/fields/ReverseField.java b/code-generation/types-base/src/main/java/org/apache/plc4x/plugins/codegenerator/types/fields/ReverseField.java
new file mode 100644
index 0000000..d787a9e
--- /dev/null
+++ b/code-generation/types-base/src/main/java/org/apache/plc4x/plugins/codegenerator/types/fields/ReverseField.java
@@ -0,0 +1,34 @@
+/*
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+ */
+
+package org.apache.plc4x.plugins.codegenerator.types.fields;
+
+import java.util.List;
+
+public interface ReverseField extends Field {
+
+    default String getTypeName() {
+        return "reverse";
+    }
+
+    int getSizeInBits();
+
+    List<Field> getFields();
+
+}