diff --git a/Cargo.lock b/Cargo.lock
index 5254592..bf3f0d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -7,6 +7,25 @@ name = "endcap-sl-register-interface-generator"
 version = "0.1.0"
 dependencies = [
  "roxmltree",
+ "thiserror",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.93"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60946a68e5f9d28b0dc1c21bb8a97ee7d018a8b322fa57838ba31cc878e22d99"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e4dccaaaf89514f546c693ddc140f729f958c247918a13380cccc6078391acc"
+dependencies = [
+ "proc-macro2",
 ]
 
 [[package]]
@@ -14,3 +33,40 @@ name = "roxmltree"
 version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c20b6793b5c2fa6553b250154b78d6d0db37e72700ae35fad9387a46f487c97"
+
+[[package]]
+name = "syn"
+version = "2.0.96"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5d0adab1ae378d7f53bdebc67a39f1f151407ef230f0ce2883572f5d8985c80"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d452f284b73e6d76dd36758a0c8684b1d5be31f92b89d07fd5822175732206fc"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26afc1baea8a989337eeb52b6e72a039780ce45c3edfcc9c5b9d112feeb173c2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a210d160f08b701c8721ba1c726c11662f877ea6b7094007e1ca9a1041945034"
diff --git a/Cargo.toml b/Cargo.toml
index 5c0dcfb..de63044 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,3 +13,4 @@ path = "src/lib.rs"
 
 [dependencies]
 roxmltree = "0.20"
+thiserror = "2.0"
diff --git a/src/converter.rs b/src/converter.rs
new file mode 100644
index 0000000..144df2c
--- /dev/null
+++ b/src/converter.rs
@@ -0,0 +1,127 @@
+use std::num;
+
+use roxmltree::{Node, TextPos};
+use thiserror::Error;
+
+use crate::types::Module;
+
+#[derive(Debug, Error)]
+pub enum DomConversionError {
+    #[error("attribute {attr} not found in element: {start} - {end}", start = pos.0, end = pos.1)]
+    AttributeNotFound {
+        attr: &'static str,
+        pos: (TextPos, TextPos),
+    },
+    #[error("string conversion error: {start} - {end}", start = pos.0, end = pos.1)]
+    ParseIntError {
+        attr: &'static str,
+        pos: (TextPos, TextPos),
+        #[source]
+        source: num::ParseIntError,
+    },
+    #[error("string conversion error: {start} - {end}", start = pos.0, end = pos.1)]
+    ParsePrefixedU32Error {
+        attr: &'static str,
+        pos: (TextPos, TextPos),
+        #[source]
+        source: ParsePrefixedU32Error,
+    },
+    #[error("invalid dom structure: {0}")]
+    InvalidFormat(String),
+}
+
+impl DomConversionError {
+    fn attr_not_found(attr: &'static str, node: Node) -> Self {
+        let range = node.range();
+        let doc = node.document();
+        Self::AttributeNotFound {
+            attr,
+            pos: (doc.text_pos_at(range.start), doc.text_pos_at(range.end)),
+        }
+    }
+
+    fn parse_int_error(e: num::ParseIntError, attr: &'static str, node: Node) -> Self {
+        let range = node.range();
+        let doc = node.document();
+        Self::ParseIntError {
+            attr,
+            pos: (doc.text_pos_at(range.start), doc.text_pos_at(range.end)),
+            source: e,
+        }
+    }
+
+    fn parse_prefixed_u32_error(e: ParsePrefixedU32Error, attr: &'static str, node: Node) -> Self {
+        let range = node.range();
+        let doc = node.document();
+        Self::ParsePrefixedU32Error {
+            attr,
+            pos: (doc.text_pos_at(range.start), doc.text_pos_at(range.end)),
+            source: e,
+        }
+    }
+}
+
+#[derive(Debug, Error)]
+pub enum ParsePrefixedU32Error {
+    #[error("invalid prefix: found {found}")]
+    InvalidPrefix { found: char },
+    #[error("parse int error")]
+    ParseIntError(#[from] num::ParseIntError),
+}
+
+trait ParsePrefixedU32 {
+    fn parse_prefixed_u32(&self) -> Result<u32, ParsePrefixedU32Error>;
+}
+
+impl ParsePrefixedU32 for &str {
+    fn parse_prefixed_u32(&self) -> Result<u32, ParsePrefixedU32Error> {
+        let radix = match self.chars().nth(1) {
+            Some('x') => 16,
+            Some(c) if c.is_numeric() => 10,
+            Some(c) => return Err(ParsePrefixedU32Error::InvalidPrefix { found: c }),
+            None => return Err(ParsePrefixedU32Error::InvalidPrefix { found: ' ' }),
+        };
+
+        match radix {
+            10 => Ok(self.parse()?),
+            radix => Ok(u32::from_str_radix(&self[2..], radix)?),
+        }
+    }
+}
+
+impl Module {
+    pub fn from_xml_dom(root: Node) -> Result<Self, DomConversionError> {
+        assert!(root.parent().unwrap().is_root());
+        assert_eq!(root.tag_name().name(), "module");
+
+        let name = root.tag_name().name();
+        println!("{}", name);
+
+        let name = match root.attribute("name") {
+            Some(name) => name.to_string(),
+            None => return Err(DomConversionError::attr_not_found("name", root)),
+        };
+        let addr = match root.attribute("addr") {
+            Some(addr) => addr
+                .parse_prefixed_u32()
+                .map_err(|e| DomConversionError::parse_prefixed_u32_error(e, "addr", root))?,
+            None => return Err(DomConversionError::attr_not_found("addr", root)),
+        };
+        let size = match root.attribute("size") {
+            Some(addr) => addr
+                .parse_prefixed_u32()
+                .map_err(|e| DomConversionError::parse_prefixed_u32_error(e, "size", root))?,
+            None => return Err(DomConversionError::attr_not_found("size", root)),
+        };
+        Ok(Self {
+            name,
+            addr,
+            size,
+            amod: todo!(),
+            r#type: todo!(),
+            desc: todo!(),
+            elements_bitstring: todo!(),
+            elements_other: todo!(),
+        })
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index cd40856..63abe1f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1 +1,2 @@
 pub mod types;
+pub mod converter;
diff --git a/src/main.rs b/src/main.rs
index b0218f8..1f0d6e7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,6 @@
 use std::fs;
 
-use endcap_sl_register_interface_generator;
+use endcap_sl_register_interface_generator::types;
 
 fn main() {
     println!("Hello, world!");
@@ -19,4 +19,6 @@ fn main() {
         let root = doc.root_element();
         println!("tag: {:?}", root.tag_name());
     }
+
+    let register_map = types::Module::from_xml_dom(doc.root_element()).unwrap();
 }