Initial commit

15 files changed, 4412 insertions, 0 deletions

diff --git a/src/sercom0/usart_ext/baud.rs b/src/sercom0/usart_ext/baud.rs
new file mode 100644
index 0000000..da7444a
--- /dev/null
+++ b/src/sercom0/usart_ext/baud.rs
@@ -0,0 +1,102 @@
+#[doc = "Register `BAUD` reader"]
+pub struct R(crate::R<BAUD_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<BAUD_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<BAUD_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<BAUD_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `BAUD` writer"]
+pub struct W(crate::W<BAUD_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<BAUD_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<BAUD_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<BAUD_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `BAUD` reader - Baud Rate Value"]
+pub struct BAUD_R(crate::FieldReader<u16, u16>);
+impl BAUD_R {
+    pub(crate) fn new(bits: u16) -> Self {
+        BAUD_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for BAUD_R {
+    type Target = crate::FieldReader<u16, u16>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `BAUD` writer - Baud Rate Value"]
+pub struct BAUD_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> BAUD_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u16) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0xffff) | (value as u16 & 0xffff);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:15 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&self) -> BAUD_R {
+        BAUD_R::new((self.bits & 0xffff) as u16)
+    }
+}
+impl W {
+    #[doc = "Bits 0:15 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&mut self) -> BAUD_W {
+        BAUD_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u16) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Baud Rate\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [baud](index.html) module"]
+pub struct BAUD_SPEC;
+impl crate::RegisterSpec for BAUD_SPEC {
+    type Ux = u16;
+}
+#[doc = "`read()` method returns [baud::R](R) reader structure"]
+impl crate::Readable for BAUD_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [baud::W](W) writer structure"]
+impl crate::Writable for BAUD_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets BAUD to value 0"]
+impl crate::Resettable for BAUD_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/baud_frac_mode.rs b/src/sercom0/usart_ext/baud_frac_mode.rs
new file mode 100644
index 0000000..31e0a81
--- /dev/null
+++ b/src/sercom0/usart_ext/baud_frac_mode.rs
@@ -0,0 +1,138 @@
+#[doc = "Register `BAUD_FRAC_MODE` reader"]
+pub struct R(crate::R<BAUD_FRAC_MODE_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<BAUD_FRAC_MODE_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<BAUD_FRAC_MODE_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<BAUD_FRAC_MODE_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `BAUD_FRAC_MODE` writer"]
+pub struct W(crate::W<BAUD_FRAC_MODE_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<BAUD_FRAC_MODE_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<BAUD_FRAC_MODE_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<BAUD_FRAC_MODE_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `BAUD` reader - Baud Rate Value"]
+pub struct BAUD_R(crate::FieldReader<u16, u16>);
+impl BAUD_R {
+    pub(crate) fn new(bits: u16) -> Self {
+        BAUD_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for BAUD_R {
+    type Target = crate::FieldReader<u16, u16>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `BAUD` writer - Baud Rate Value"]
+pub struct BAUD_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> BAUD_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u16) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x1fff) | (value as u16 & 0x1fff);
+        self.w
+    }
+}
+#[doc = "Field `FP` reader - Fractional Part"]
+pub struct FP_R(crate::FieldReader<u8, u8>);
+impl FP_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        FP_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for FP_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `FP` writer - Fractional Part"]
+pub struct FP_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> FP_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x07 << 13)) | ((value as u16 & 0x07) << 13);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:12 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&self) -> BAUD_R {
+        BAUD_R::new((self.bits & 0x1fff) as u16)
+    }
+    #[doc = "Bits 13:15 - Fractional Part"]
+    #[inline(always)]
+    pub fn fp(&self) -> FP_R {
+        FP_R::new(((self.bits >> 13) & 0x07) as u8)
+    }
+}
+impl W {
+    #[doc = "Bits 0:12 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&mut self) -> BAUD_W {
+        BAUD_W { w: self }
+    }
+    #[doc = "Bits 13:15 - Fractional Part"]
+    #[inline(always)]
+    pub fn fp(&mut self) -> FP_W {
+        FP_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u16) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Baud Rate\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [baud_frac_mode](index.html) module"]
+pub struct BAUD_FRAC_MODE_SPEC;
+impl crate::RegisterSpec for BAUD_FRAC_MODE_SPEC {
+    type Ux = u16;
+}
+#[doc = "`read()` method returns [baud_frac_mode::R](R) reader structure"]
+impl crate::Readable for BAUD_FRAC_MODE_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [baud_frac_mode::W](W) writer structure"]
+impl crate::Writable for BAUD_FRAC_MODE_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets BAUD_FRAC_MODE to value 0"]
+impl crate::Resettable for BAUD_FRAC_MODE_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/baud_fracfp_mode.rs b/src/sercom0/usart_ext/baud_fracfp_mode.rs
new file mode 100644
index 0000000..833e44a
--- /dev/null
+++ b/src/sercom0/usart_ext/baud_fracfp_mode.rs
@@ -0,0 +1,138 @@
+#[doc = "Register `BAUD_FRACFP_MODE` reader"]
+pub struct R(crate::R<BAUD_FRACFP_MODE_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<BAUD_FRACFP_MODE_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<BAUD_FRACFP_MODE_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<BAUD_FRACFP_MODE_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `BAUD_FRACFP_MODE` writer"]
+pub struct W(crate::W<BAUD_FRACFP_MODE_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<BAUD_FRACFP_MODE_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<BAUD_FRACFP_MODE_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<BAUD_FRACFP_MODE_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `BAUD` reader - Baud Rate Value"]
+pub struct BAUD_R(crate::FieldReader<u16, u16>);
+impl BAUD_R {
+    pub(crate) fn new(bits: u16) -> Self {
+        BAUD_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for BAUD_R {
+    type Target = crate::FieldReader<u16, u16>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `BAUD` writer - Baud Rate Value"]
+pub struct BAUD_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> BAUD_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u16) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x1fff) | (value as u16 & 0x1fff);
+        self.w
+    }
+}
+#[doc = "Field `FP` reader - Fractional Part"]
+pub struct FP_R(crate::FieldReader<u8, u8>);
+impl FP_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        FP_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for FP_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `FP` writer - Fractional Part"]
+pub struct FP_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> FP_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x07 << 13)) | ((value as u16 & 0x07) << 13);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:12 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&self) -> BAUD_R {
+        BAUD_R::new((self.bits & 0x1fff) as u16)
+    }
+    #[doc = "Bits 13:15 - Fractional Part"]
+    #[inline(always)]
+    pub fn fp(&self) -> FP_R {
+        FP_R::new(((self.bits >> 13) & 0x07) as u8)
+    }
+}
+impl W {
+    #[doc = "Bits 0:12 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&mut self) -> BAUD_W {
+        BAUD_W { w: self }
+    }
+    #[doc = "Bits 13:15 - Fractional Part"]
+    #[inline(always)]
+    pub fn fp(&mut self) -> FP_W {
+        FP_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u16) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Baud Rate\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [baud_fracfp_mode](index.html) module"]
+pub struct BAUD_FRACFP_MODE_SPEC;
+impl crate::RegisterSpec for BAUD_FRACFP_MODE_SPEC {
+    type Ux = u16;
+}
+#[doc = "`read()` method returns [baud_fracfp_mode::R](R) reader structure"]
+impl crate::Readable for BAUD_FRACFP_MODE_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [baud_fracfp_mode::W](W) writer structure"]
+impl crate::Writable for BAUD_FRACFP_MODE_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets BAUD_FRACFP_MODE to value 0"]
+impl crate::Resettable for BAUD_FRACFP_MODE_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/baud_usartfp_mode.rs b/src/sercom0/usart_ext/baud_usartfp_mode.rs
new file mode 100644
index 0000000..f992604
--- /dev/null
+++ b/src/sercom0/usart_ext/baud_usartfp_mode.rs
@@ -0,0 +1,102 @@
+#[doc = "Register `BAUD_USARTFP_MODE` reader"]
+pub struct R(crate::R<BAUD_USARTFP_MODE_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<BAUD_USARTFP_MODE_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<BAUD_USARTFP_MODE_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<BAUD_USARTFP_MODE_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `BAUD_USARTFP_MODE` writer"]
+pub struct W(crate::W<BAUD_USARTFP_MODE_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<BAUD_USARTFP_MODE_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<BAUD_USARTFP_MODE_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<BAUD_USARTFP_MODE_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `BAUD` reader - Baud Rate Value"]
+pub struct BAUD_R(crate::FieldReader<u16, u16>);
+impl BAUD_R {
+    pub(crate) fn new(bits: u16) -> Self {
+        BAUD_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for BAUD_R {
+    type Target = crate::FieldReader<u16, u16>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `BAUD` writer - Baud Rate Value"]
+pub struct BAUD_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> BAUD_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u16) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0xffff) | (value as u16 & 0xffff);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:15 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&self) -> BAUD_R {
+        BAUD_R::new((self.bits & 0xffff) as u16)
+    }
+}
+impl W {
+    #[doc = "Bits 0:15 - Baud Rate Value"]
+    #[inline(always)]
+    pub fn baud(&mut self) -> BAUD_W {
+        BAUD_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u16) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Baud Rate\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [baud_usartfp_mode](index.html) module"]
+pub struct BAUD_USARTFP_MODE_SPEC;
+impl crate::RegisterSpec for BAUD_USARTFP_MODE_SPEC {
+    type Ux = u16;
+}
+#[doc = "`read()` method returns [baud_usartfp_mode::R](R) reader structure"]
+impl crate::Readable for BAUD_USARTFP_MODE_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [baud_usartfp_mode::W](W) writer structure"]
+impl crate::Writable for BAUD_USARTFP_MODE_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets BAUD_USARTFP_MODE to value 0"]
+impl crate::Resettable for BAUD_USARTFP_MODE_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/ctrla.rs b/src/sercom0/usart_ext/ctrla.rs
new file mode 100644
index 0000000..9431067
--- /dev/null
+++ b/src/sercom0/usart_ext/ctrla.rs
@@ -0,0 +1,1158 @@
+#[doc = "Register `CTRLA` reader"]
+pub struct R(crate::R<CTRLA_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<CTRLA_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<CTRLA_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<CTRLA_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `CTRLA` writer"]
+pub struct W(crate::W<CTRLA_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<CTRLA_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<CTRLA_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<CTRLA_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `SWRST` reader - Software Reset"]
+pub struct SWRST_R(crate::FieldReader<bool, bool>);
+impl SWRST_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        SWRST_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for SWRST_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `SWRST` writer - Software Reset"]
+pub struct SWRST_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> SWRST_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01) | (value as u32 & 0x01);
+        self.w
+    }
+}
+#[doc = "Field `ENABLE` reader - Enable"]
+pub struct ENABLE_R(crate::FieldReader<bool, bool>);
+impl ENABLE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ENABLE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ENABLE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ENABLE` writer - Enable"]
+pub struct ENABLE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> ENABLE_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 1)) | ((value as u32 & 0x01) << 1);
+        self.w
+    }
+}
+#[doc = "Operating Mode\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[repr(u8)]
+pub enum MODE_A {
+    #[doc = "0: USART with external clock"]
+    USART_EXT_CLK = 0,
+    #[doc = "1: USART with internal clock"]
+    USART_INT_CLK = 1,
+    #[doc = "2: SPI in slave operation"]
+    SPI_SLAVE = 2,
+    #[doc = "3: SPI in master operation"]
+    SPI_MASTER = 3,
+    #[doc = "4: I2C slave operation"]
+    I2C_SLAVE = 4,
+    #[doc = "5: I2C master operation"]
+    I2C_MASTER = 5,
+}
+impl From<MODE_A> for u8 {
+    #[inline(always)]
+    fn from(variant: MODE_A) -> Self {
+        variant as _
+    }
+}
+#[doc = "Field `MODE` reader - Operating Mode"]
+pub struct MODE_R(crate::FieldReader<u8, MODE_A>);
+impl MODE_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        MODE_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> Option<MODE_A> {
+        match self.bits {
+            0 => Some(MODE_A::USART_EXT_CLK),
+            1 => Some(MODE_A::USART_INT_CLK),
+            2 => Some(MODE_A::SPI_SLAVE),
+            3 => Some(MODE_A::SPI_MASTER),
+            4 => Some(MODE_A::I2C_SLAVE),
+            5 => Some(MODE_A::I2C_MASTER),
+            _ => None,
+        }
+    }
+    #[doc = "Checks if the value of the field is `USART_EXT_CLK`"]
+    #[inline(always)]
+    pub fn is_usart_ext_clk(&self) -> bool {
+        **self == MODE_A::USART_EXT_CLK
+    }
+    #[doc = "Checks if the value of the field is `USART_INT_CLK`"]
+    #[inline(always)]
+    pub fn is_usart_int_clk(&self) -> bool {
+        **self == MODE_A::USART_INT_CLK
+    }
+    #[doc = "Checks if the value of the field is `SPI_SLAVE`"]
+    #[inline(always)]
+    pub fn is_spi_slave(&self) -> bool {
+        **self == MODE_A::SPI_SLAVE
+    }
+    #[doc = "Checks if the value of the field is `SPI_MASTER`"]
+    #[inline(always)]
+    pub fn is_spi_master(&self) -> bool {
+        **self == MODE_A::SPI_MASTER
+    }
+    #[doc = "Checks if the value of the field is `I2C_SLAVE`"]
+    #[inline(always)]
+    pub fn is_i2c_slave(&self) -> bool {
+        **self == MODE_A::I2C_SLAVE
+    }
+    #[doc = "Checks if the value of the field is `I2C_MASTER`"]
+    #[inline(always)]
+    pub fn is_i2c_master(&self) -> bool {
+        **self == MODE_A::I2C_MASTER
+    }
+}
+impl core::ops::Deref for MODE_R {
+    type Target = crate::FieldReader<u8, MODE_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `MODE` writer - Operating Mode"]
+pub struct MODE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> MODE_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: MODE_A) -> &'a mut W {
+        unsafe { self.bits(variant.into()) }
+    }
+    #[doc = "USART with external clock"]
+    #[inline(always)]
+    pub fn usart_ext_clk(self) -> &'a mut W {
+        self.variant(MODE_A::USART_EXT_CLK)
+    }
+    #[doc = "USART with internal clock"]
+    #[inline(always)]
+    pub fn usart_int_clk(self) -> &'a mut W {
+        self.variant(MODE_A::USART_INT_CLK)
+    }
+    #[doc = "SPI in slave operation"]
+    #[inline(always)]
+    pub fn spi_slave(self) -> &'a mut W {
+        self.variant(MODE_A::SPI_SLAVE)
+    }
+    #[doc = "SPI in master operation"]
+    #[inline(always)]
+    pub fn spi_master(self) -> &'a mut W {
+        self.variant(MODE_A::SPI_MASTER)
+    }
+    #[doc = "I2C slave operation"]
+    #[inline(always)]
+    pub fn i2c_slave(self) -> &'a mut W {
+        self.variant(MODE_A::I2C_SLAVE)
+    }
+    #[doc = "I2C master operation"]
+    #[inline(always)]
+    pub fn i2c_master(self) -> &'a mut W {
+        self.variant(MODE_A::I2C_MASTER)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x07 << 2)) | ((value as u32 & 0x07) << 2);
+        self.w
+    }
+}
+#[doc = "Field `RUNSTDBY` reader - Run during Standby"]
+pub struct RUNSTDBY_R(crate::FieldReader<bool, bool>);
+impl RUNSTDBY_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RUNSTDBY_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RUNSTDBY_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RUNSTDBY` writer - Run during Standby"]
+pub struct RUNSTDBY_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RUNSTDBY_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 7)) | ((value as u32 & 0x01) << 7);
+        self.w
+    }
+}
+#[doc = "Field `IBON` reader - Immediate Buffer Overflow Notification"]
+pub struct IBON_R(crate::FieldReader<bool, bool>);
+impl IBON_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        IBON_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for IBON_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `IBON` writer - Immediate Buffer Overflow Notification"]
+pub struct IBON_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> IBON_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 8)) | ((value as u32 & 0x01) << 8);
+        self.w
+    }
+}
+#[doc = "Sample\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[repr(u8)]
+pub enum SAMPR_A {
+    #[doc = "0: 16x over-sampling using arithmetic baudrate generation"]
+    _16X_ARITHMETIC = 0,
+    #[doc = "1: 16x over-sampling using fractional baudrate generation"]
+    _16X_FRACTIONAL = 1,
+    #[doc = "2: 8x over-sampling using arithmetic baudrate generation"]
+    _8X_ARITHMETIC = 2,
+    #[doc = "3: 8x over-sampling using fractional baudrate generation"]
+    _8X_FRACTIONAL = 3,
+    #[doc = "4: 3x over-sampling using arithmetic baudrate generation"]
+    _3X_ARITHMETIC = 4,
+}
+impl From<SAMPR_A> for u8 {
+    #[inline(always)]
+    fn from(variant: SAMPR_A) -> Self {
+        variant as _
+    }
+}
+#[doc = "Field `SAMPR` reader - Sample"]
+pub struct SAMPR_R(crate::FieldReader<u8, SAMPR_A>);
+impl SAMPR_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        SAMPR_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> Option<SAMPR_A> {
+        match self.bits {
+            0 => Some(SAMPR_A::_16X_ARITHMETIC),
+            1 => Some(SAMPR_A::_16X_FRACTIONAL),
+            2 => Some(SAMPR_A::_8X_ARITHMETIC),
+            3 => Some(SAMPR_A::_8X_FRACTIONAL),
+            4 => Some(SAMPR_A::_3X_ARITHMETIC),
+            _ => None,
+        }
+    }
+    #[doc = "Checks if the value of the field is `_16X_ARITHMETIC`"]
+    #[inline(always)]
+    pub fn is_16x_arithmetic(&self) -> bool {
+        **self == SAMPR_A::_16X_ARITHMETIC
+    }
+    #[doc = "Checks if the value of the field is `_16X_FRACTIONAL`"]
+    #[inline(always)]
+    pub fn is_16x_fractional(&self) -> bool {
+        **self == SAMPR_A::_16X_FRACTIONAL
+    }
+    #[doc = "Checks if the value of the field is `_8X_ARITHMETIC`"]
+    #[inline(always)]
+    pub fn is_8x_arithmetic(&self) -> bool {
+        **self == SAMPR_A::_8X_ARITHMETIC
+    }
+    #[doc = "Checks if the value of the field is `_8X_FRACTIONAL`"]
+    #[inline(always)]
+    pub fn is_8x_fractional(&self) -> bool {
+        **self == SAMPR_A::_8X_FRACTIONAL
+    }
+    #[doc = "Checks if the value of the field is `_3X_ARITHMETIC`"]
+    #[inline(always)]
+    pub fn is_3x_arithmetic(&self) -> bool {
+        **self == SAMPR_A::_3X_ARITHMETIC
+    }
+}
+impl core::ops::Deref for SAMPR_R {
+    type Target = crate::FieldReader<u8, SAMPR_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `SAMPR` writer - Sample"]
+pub struct SAMPR_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> SAMPR_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: SAMPR_A) -> &'a mut W {
+        unsafe { self.bits(variant.into()) }
+    }
+    #[doc = "16x over-sampling using arithmetic baudrate generation"]
+    #[inline(always)]
+    pub fn _16x_arithmetic(self) -> &'a mut W {
+        self.variant(SAMPR_A::_16X_ARITHMETIC)
+    }
+    #[doc = "16x over-sampling using fractional baudrate generation"]
+    #[inline(always)]
+    pub fn _16x_fractional(self) -> &'a mut W {
+        self.variant(SAMPR_A::_16X_FRACTIONAL)
+    }
+    #[doc = "8x over-sampling using arithmetic baudrate generation"]
+    #[inline(always)]
+    pub fn _8x_arithmetic(self) -> &'a mut W {
+        self.variant(SAMPR_A::_8X_ARITHMETIC)
+    }
+    #[doc = "8x over-sampling using fractional baudrate generation"]
+    #[inline(always)]
+    pub fn _8x_fractional(self) -> &'a mut W {
+        self.variant(SAMPR_A::_8X_FRACTIONAL)
+    }
+    #[doc = "3x over-sampling using arithmetic baudrate generation"]
+    #[inline(always)]
+    pub fn _3x_arithmetic(self) -> &'a mut W {
+        self.variant(SAMPR_A::_3X_ARITHMETIC)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x07 << 13)) | ((value as u32 & 0x07) << 13);
+        self.w
+    }
+}
+#[doc = "Transmit Data Pinout\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[repr(u8)]
+pub enum TXPO_A {
+    #[doc = "0: SERCOM PAD\\[0\\]
+is used for data transmission"]
+    PAD0 = 0,
+    #[doc = "1: SERCOM PAD\\[2\\]
+is used for data transmission"]
+    PAD2 = 1,
+}
+impl From<TXPO_A> for u8 {
+    #[inline(always)]
+    fn from(variant: TXPO_A) -> Self {
+        variant as _
+    }
+}
+#[doc = "Field `TXPO` reader - Transmit Data Pinout"]
+pub struct TXPO_R(crate::FieldReader<u8, TXPO_A>);
+impl TXPO_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        TXPO_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> Option<TXPO_A> {
+        match self.bits {
+            0 => Some(TXPO_A::PAD0),
+            1 => Some(TXPO_A::PAD2),
+            _ => None,
+        }
+    }
+    #[doc = "Checks if the value of the field is `PAD0`"]
+    #[inline(always)]
+    pub fn is_pad0(&self) -> bool {
+        **self == TXPO_A::PAD0
+    }
+    #[doc = "Checks if the value of the field is `PAD2`"]
+    #[inline(always)]
+    pub fn is_pad2(&self) -> bool {
+        **self == TXPO_A::PAD2
+    }
+}
+impl core::ops::Deref for TXPO_R {
+    type Target = crate::FieldReader<u8, TXPO_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `TXPO` writer - Transmit Data Pinout"]
+pub struct TXPO_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> TXPO_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: TXPO_A) -> &'a mut W {
+        unsafe { self.bits(variant.into()) }
+    }
+    #[doc = "SERCOM PAD\\[0\\]
+is used for data transmission"]
+    #[inline(always)]
+    pub fn pad0(self) -> &'a mut W {
+        self.variant(TXPO_A::PAD0)
+    }
+    #[doc = "SERCOM PAD\\[2\\]
+is used for data transmission"]
+    #[inline(always)]
+    pub fn pad2(self) -> &'a mut W {
+        self.variant(TXPO_A::PAD2)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x03 << 16)) | ((value as u32 & 0x03) << 16);
+        self.w
+    }
+}
+#[doc = "Receive Data Pinout\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[repr(u8)]
+pub enum RXPO_A {
+    #[doc = "0: SERCOM PAD\\[0\\]
+is used for data reception"]
+    PAD0 = 0,
+    #[doc = "1: SERCOM PAD\\[1\\]
+is used for data reception"]
+    PAD1 = 1,
+    #[doc = "2: SERCOM PAD\\[2\\]
+is used for data reception"]
+    PAD2 = 2,
+    #[doc = "3: SERCOM PAD\\[3\\]
+is used for data reception"]
+    PAD3 = 3,
+}
+impl From<RXPO_A> for u8 {
+    #[inline(always)]
+    fn from(variant: RXPO_A) -> Self {
+        variant as _
+    }
+}
+#[doc = "Field `RXPO` reader - Receive Data Pinout"]
+pub struct RXPO_R(crate::FieldReader<u8, RXPO_A>);
+impl RXPO_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        RXPO_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> RXPO_A {
+        match self.bits {
+            0 => RXPO_A::PAD0,
+            1 => RXPO_A::PAD1,
+            2 => RXPO_A::PAD2,
+            3 => RXPO_A::PAD3,
+            _ => unreachable!(),
+        }
+    }
+    #[doc = "Checks if the value of the field is `PAD0`"]
+    #[inline(always)]
+    pub fn is_pad0(&self) -> bool {
+        **self == RXPO_A::PAD0
+    }
+    #[doc = "Checks if the value of the field is `PAD1`"]
+    #[inline(always)]
+    pub fn is_pad1(&self) -> bool {
+        **self == RXPO_A::PAD1
+    }
+    #[doc = "Checks if the value of the field is `PAD2`"]
+    #[inline(always)]
+    pub fn is_pad2(&self) -> bool {
+        **self == RXPO_A::PAD2
+    }
+    #[doc = "Checks if the value of the field is `PAD3`"]
+    #[inline(always)]
+    pub fn is_pad3(&self) -> bool {
+        **self == RXPO_A::PAD3
+    }
+}
+impl core::ops::Deref for RXPO_R {
+    type Target = crate::FieldReader<u8, RXPO_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXPO` writer - Receive Data Pinout"]
+pub struct RXPO_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXPO_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: RXPO_A) -> &'a mut W {
+        self.bits(variant.into())
+    }
+    #[doc = "SERCOM PAD\\[0\\]
+is used for data reception"]
+    #[inline(always)]
+    pub fn pad0(self) -> &'a mut W {
+        self.variant(RXPO_A::PAD0)
+    }
+    #[doc = "SERCOM PAD\\[1\\]
+is used for data reception"]
+    #[inline(always)]
+    pub fn pad1(self) -> &'a mut W {
+        self.variant(RXPO_A::PAD1)
+    }
+    #[doc = "SERCOM PAD\\[2\\]
+is used for data reception"]
+    #[inline(always)]
+    pub fn pad2(self) -> &'a mut W {
+        self.variant(RXPO_A::PAD2)
+    }
+    #[doc = "SERCOM PAD\\[3\\]
+is used for data reception"]
+    #[inline(always)]
+    pub fn pad3(self) -> &'a mut W {
+        self.variant(RXPO_A::PAD3)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x03 << 20)) | ((value as u32 & 0x03) << 20);
+        self.w
+    }
+}
+#[doc = "Field `SAMPA` reader - Sample Adjustment"]
+pub struct SAMPA_R(crate::FieldReader<u8, u8>);
+impl SAMPA_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        SAMPA_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for SAMPA_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `SAMPA` writer - Sample Adjustment"]
+pub struct SAMPA_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> SAMPA_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x03 << 22)) | ((value as u32 & 0x03) << 22);
+        self.w
+    }
+}
+#[doc = "Frame Format\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[repr(u8)]
+pub enum FORM_A {
+    #[doc = "0: USART frame"]
+    USART_FRAME_NO_PARITY = 0,
+    #[doc = "1: USART frame with parity"]
+    USART_FRAME_WITH_PARITY = 1,
+    #[doc = "2: LIN Master - Break and sync generation"]
+    USART_FRAME_LIN_MASTER_MODE = 2,
+    #[doc = "4: Auto-baud - break detection and auto-baud"]
+    USART_FRAME_AUTO_BAUD_NO_PARITY = 4,
+    #[doc = "5: Auto-baud - break detection and auto-baud with parity"]
+    USART_FRAME_AUTO_BAUD_WITH_PARITY = 5,
+}
+impl From<FORM_A> for u8 {
+    #[inline(always)]
+    fn from(variant: FORM_A) -> Self {
+        variant as _
+    }
+}
+#[doc = "Field `FORM` reader - Frame Format"]
+pub struct FORM_R(crate::FieldReader<u8, FORM_A>);
+impl FORM_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        FORM_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> Option<FORM_A> {
+        match self.bits {
+            0 => Some(FORM_A::USART_FRAME_NO_PARITY),
+            1 => Some(FORM_A::USART_FRAME_WITH_PARITY),
+            2 => Some(FORM_A::USART_FRAME_LIN_MASTER_MODE),
+            4 => Some(FORM_A::USART_FRAME_AUTO_BAUD_NO_PARITY),
+            5 => Some(FORM_A::USART_FRAME_AUTO_BAUD_WITH_PARITY),
+            _ => None,
+        }
+    }
+    #[doc = "Checks if the value of the field is `USART_FRAME_NO_PARITY`"]
+    #[inline(always)]
+    pub fn is_usart_frame_no_parity(&self) -> bool {
+        **self == FORM_A::USART_FRAME_NO_PARITY
+    }
+    #[doc = "Checks if the value of the field is `USART_FRAME_WITH_PARITY`"]
+    #[inline(always)]
+    pub fn is_usart_frame_with_parity(&self) -> bool {
+        **self == FORM_A::USART_FRAME_WITH_PARITY
+    }
+    #[doc = "Checks if the value of the field is `USART_FRAME_LIN_MASTER_MODE`"]
+    #[inline(always)]
+    pub fn is_usart_frame_lin_master_mode(&self) -> bool {
+        **self == FORM_A::USART_FRAME_LIN_MASTER_MODE
+    }
+    #[doc = "Checks if the value of the field is `USART_FRAME_AUTO_BAUD_NO_PARITY`"]
+    #[inline(always)]
+    pub fn is_usart_frame_auto_baud_no_parity(&self) -> bool {
+        **self == FORM_A::USART_FRAME_AUTO_BAUD_NO_PARITY
+    }
+    #[doc = "Checks if the value of the field is `USART_FRAME_AUTO_BAUD_WITH_PARITY`"]
+    #[inline(always)]
+    pub fn is_usart_frame_auto_baud_with_parity(&self) -> bool {
+        **self == FORM_A::USART_FRAME_AUTO_BAUD_WITH_PARITY
+    }
+}
+impl core::ops::Deref for FORM_R {
+    type Target = crate::FieldReader<u8, FORM_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `FORM` writer - Frame Format"]
+pub struct FORM_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> FORM_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: FORM_A) -> &'a mut W {
+        unsafe { self.bits(variant.into()) }
+    }
+    #[doc = "USART frame"]
+    #[inline(always)]
+    pub fn usart_frame_no_parity(self) -> &'a mut W {
+        self.variant(FORM_A::USART_FRAME_NO_PARITY)
+    }
+    #[doc = "USART frame with parity"]
+    #[inline(always)]
+    pub fn usart_frame_with_parity(self) -> &'a mut W {
+        self.variant(FORM_A::USART_FRAME_WITH_PARITY)
+    }
+    #[doc = "LIN Master - Break and sync generation"]
+    #[inline(always)]
+    pub fn usart_frame_lin_master_mode(self) -> &'a mut W {
+        self.variant(FORM_A::USART_FRAME_LIN_MASTER_MODE)
+    }
+    #[doc = "Auto-baud - break detection and auto-baud"]
+    #[inline(always)]
+    pub fn usart_frame_auto_baud_no_parity(self) -> &'a mut W {
+        self.variant(FORM_A::USART_FRAME_AUTO_BAUD_NO_PARITY)
+    }
+    #[doc = "Auto-baud - break detection and auto-baud with parity"]
+    #[inline(always)]
+    pub fn usart_frame_auto_baud_with_parity(self) -> &'a mut W {
+        self.variant(FORM_A::USART_FRAME_AUTO_BAUD_WITH_PARITY)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x0f << 24)) | ((value as u32 & 0x0f) << 24);
+        self.w
+    }
+}
+#[doc = "Communication Mode\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum CMODE_A {
+    #[doc = "0: Asynchronous Communication"]
+    ASYNC = 0,
+    #[doc = "1: Synchronous Communication"]
+    SYNC = 1,
+}
+impl From<CMODE_A> for bool {
+    #[inline(always)]
+    fn from(variant: CMODE_A) -> Self {
+        variant as u8 != 0
+    }
+}
+#[doc = "Field `CMODE` reader - Communication Mode"]
+pub struct CMODE_R(crate::FieldReader<bool, CMODE_A>);
+impl CMODE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CMODE_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> CMODE_A {
+        match self.bits {
+            false => CMODE_A::ASYNC,
+            true => CMODE_A::SYNC,
+        }
+    }
+    #[doc = "Checks if the value of the field is `ASYNC`"]
+    #[inline(always)]
+    pub fn is_async(&self) -> bool {
+        **self == CMODE_A::ASYNC
+    }
+    #[doc = "Checks if the value of the field is `SYNC`"]
+    #[inline(always)]
+    pub fn is_sync(&self) -> bool {
+        **self == CMODE_A::SYNC
+    }
+}
+impl core::ops::Deref for CMODE_R {
+    type Target = crate::FieldReader<bool, CMODE_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CMODE` writer - Communication Mode"]
+pub struct CMODE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CMODE_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: CMODE_A) -> &'a mut W {
+        self.bit(variant.into())
+    }
+    #[doc = "Asynchronous Communication"]
+    #[inline(always)]
+    pub fn async_(self) -> &'a mut W {
+        self.variant(CMODE_A::ASYNC)
+    }
+    #[doc = "Synchronous Communication"]
+    #[inline(always)]
+    pub fn sync(self) -> &'a mut W {
+        self.variant(CMODE_A::SYNC)
+    }
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 28)) | ((value as u32 & 0x01) << 28);
+        self.w
+    }
+}
+#[doc = "Clock Polarity\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum CPOL_A {
+    #[doc = "0: TxD Change:- Rising XCK edge, RxD Sample:- Falling XCK edge"]
+    IDLE_LOW = 0,
+    #[doc = "1: TxD Change:- Falling XCK edge, RxD Sample:- Rising XCK edge"]
+    IDLE_HIGH = 1,
+}
+impl From<CPOL_A> for bool {
+    #[inline(always)]
+    fn from(variant: CPOL_A) -> Self {
+        variant as u8 != 0
+    }
+}
+#[doc = "Field `CPOL` reader - Clock Polarity"]
+pub struct CPOL_R(crate::FieldReader<bool, CPOL_A>);
+impl CPOL_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CPOL_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> CPOL_A {
+        match self.bits {
+            false => CPOL_A::IDLE_LOW,
+            true => CPOL_A::IDLE_HIGH,
+        }
+    }
+    #[doc = "Checks if the value of the field is `IDLE_LOW`"]
+    #[inline(always)]
+    pub fn is_idle_low(&self) -> bool {
+        **self == CPOL_A::IDLE_LOW
+    }
+    #[doc = "Checks if the value of the field is `IDLE_HIGH`"]
+    #[inline(always)]
+    pub fn is_idle_high(&self) -> bool {
+        **self == CPOL_A::IDLE_HIGH
+    }
+}
+impl core::ops::Deref for CPOL_R {
+    type Target = crate::FieldReader<bool, CPOL_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CPOL` writer - Clock Polarity"]
+pub struct CPOL_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CPOL_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: CPOL_A) -> &'a mut W {
+        self.bit(variant.into())
+    }
+    #[doc = "TxD Change:- Rising XCK edge, RxD Sample:- Falling XCK edge"]
+    #[inline(always)]
+    pub fn idle_low(self) -> &'a mut W {
+        self.variant(CPOL_A::IDLE_LOW)
+    }
+    #[doc = "TxD Change:- Falling XCK edge, RxD Sample:- Rising XCK edge"]
+    #[inline(always)]
+    pub fn idle_high(self) -> &'a mut W {
+        self.variant(CPOL_A::IDLE_HIGH)
+    }
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 29)) | ((value as u32 & 0x01) << 29);
+        self.w
+    }
+}
+#[doc = "Data Order\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum DORD_A {
+    #[doc = "0: MSB is transmitted first"]
+    MSB = 0,
+    #[doc = "1: LSB is transmitted first"]
+    LSB = 1,
+}
+impl From<DORD_A> for bool {
+    #[inline(always)]
+    fn from(variant: DORD_A) -> Self {
+        variant as u8 != 0
+    }
+}
+#[doc = "Field `DORD` reader - Data Order"]
+pub struct DORD_R(crate::FieldReader<bool, DORD_A>);
+impl DORD_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        DORD_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> DORD_A {
+        match self.bits {
+            false => DORD_A::MSB,
+            true => DORD_A::LSB,
+        }
+    }
+    #[doc = "Checks if the value of the field is `MSB`"]
+    #[inline(always)]
+    pub fn is_msb(&self) -> bool {
+        **self == DORD_A::MSB
+    }
+    #[doc = "Checks if the value of the field is `LSB`"]
+    #[inline(always)]
+    pub fn is_lsb(&self) -> bool {
+        **self == DORD_A::LSB
+    }
+}
+impl core::ops::Deref for DORD_R {
+    type Target = crate::FieldReader<bool, DORD_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `DORD` writer - Data Order"]
+pub struct DORD_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> DORD_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: DORD_A) -> &'a mut W {
+        self.bit(variant.into())
+    }
+    #[doc = "MSB is transmitted first"]
+    #[inline(always)]
+    pub fn msb(self) -> &'a mut W {
+        self.variant(DORD_A::MSB)
+    }
+    #[doc = "LSB is transmitted first"]
+    #[inline(always)]
+    pub fn lsb(self) -> &'a mut W {
+        self.variant(DORD_A::LSB)
+    }
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 30)) | ((value as u32 & 0x01) << 30);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Software Reset"]
+    #[inline(always)]
+    pub fn swrst(&self) -> SWRST_R {
+        SWRST_R::new((self.bits & 0x01) != 0)
+    }
+    #[doc = "Bit 1 - Enable"]
+    #[inline(always)]
+    pub fn enable(&self) -> ENABLE_R {
+        ENABLE_R::new(((self.bits >> 1) & 0x01) != 0)
+    }
+    #[doc = "Bits 2:4 - Operating Mode"]
+    #[inline(always)]
+    pub fn mode(&self) -> MODE_R {
+        MODE_R::new(((self.bits >> 2) & 0x07) as u8)
+    }
+    #[doc = "Bit 7 - Run during Standby"]
+    #[inline(always)]
+    pub fn runstdby(&self) -> RUNSTDBY_R {
+        RUNSTDBY_R::new(((self.bits >> 7) & 0x01) != 0)
+    }
+    #[doc = "Bit 8 - Immediate Buffer Overflow Notification"]
+    #[inline(always)]
+    pub fn ibon(&self) -> IBON_R {
+        IBON_R::new(((self.bits >> 8) & 0x01) != 0)
+    }
+    #[doc = "Bits 13:15 - Sample"]
+    #[inline(always)]
+    pub fn sampr(&self) -> SAMPR_R {
+        SAMPR_R::new(((self.bits >> 13) & 0x07) as u8)
+    }
+    #[doc = "Bits 16:17 - Transmit Data Pinout"]
+    #[inline(always)]
+    pub fn txpo(&self) -> TXPO_R {
+        TXPO_R::new(((self.bits >> 16) & 0x03) as u8)
+    }
+    #[doc = "Bits 20:21 - Receive Data Pinout"]
+    #[inline(always)]
+    pub fn rxpo(&self) -> RXPO_R {
+        RXPO_R::new(((self.bits >> 20) & 0x03) as u8)
+    }
+    #[doc = "Bits 22:23 - Sample Adjustment"]
+    #[inline(always)]
+    pub fn sampa(&self) -> SAMPA_R {
+        SAMPA_R::new(((self.bits >> 22) & 0x03) as u8)
+    }
+    #[doc = "Bits 24:27 - Frame Format"]
+    #[inline(always)]
+    pub fn form(&self) -> FORM_R {
+        FORM_R::new(((self.bits >> 24) & 0x0f) as u8)
+    }
+    #[doc = "Bit 28 - Communication Mode"]
+    #[inline(always)]
+    pub fn cmode(&self) -> CMODE_R {
+        CMODE_R::new(((self.bits >> 28) & 0x01) != 0)
+    }
+    #[doc = "Bit 29 - Clock Polarity"]
+    #[inline(always)]
+    pub fn cpol(&self) -> CPOL_R {
+        CPOL_R::new(((self.bits >> 29) & 0x01) != 0)
+    }
+    #[doc = "Bit 30 - Data Order"]
+    #[inline(always)]
+    pub fn dord(&self) -> DORD_R {
+        DORD_R::new(((self.bits >> 30) & 0x01) != 0)
+    }
+}
+impl W {
+    #[doc = "Bit 0 - Software Reset"]
+    #[inline(always)]
+    pub fn swrst(&mut self) -> SWRST_W {
+        SWRST_W { w: self }
+    }
+    #[doc = "Bit 1 - Enable"]
+    #[inline(always)]
+    pub fn enable(&mut self) -> ENABLE_W {
+        ENABLE_W { w: self }
+    }
+    #[doc = "Bits 2:4 - Operating Mode"]
+    #[inline(always)]
+    pub fn mode(&mut self) -> MODE_W {
+        MODE_W { w: self }
+    }
+    #[doc = "Bit 7 - Run during Standby"]
+    #[inline(always)]
+    pub fn runstdby(&mut self) -> RUNSTDBY_W {
+        RUNSTDBY_W { w: self }
+    }
+    #[doc = "Bit 8 - Immediate Buffer Overflow Notification"]
+    #[inline(always)]
+    pub fn ibon(&mut self) -> IBON_W {
+        IBON_W { w: self }
+    }
+    #[doc = "Bits 13:15 - Sample"]
+    #[inline(always)]
+    pub fn sampr(&mut self) -> SAMPR_W {
+        SAMPR_W { w: self }
+    }
+    #[doc = "Bits 16:17 - Transmit Data Pinout"]
+    #[inline(always)]
+    pub fn txpo(&mut self) -> TXPO_W {
+        TXPO_W { w: self }
+    }
+    #[doc = "Bits 20:21 - Receive Data Pinout"]
+    #[inline(always)]
+    pub fn rxpo(&mut self) -> RXPO_W {
+        RXPO_W { w: self }
+    }
+    #[doc = "Bits 22:23 - Sample Adjustment"]
+    #[inline(always)]
+    pub fn sampa(&mut self) -> SAMPA_W {
+        SAMPA_W { w: self }
+    }
+    #[doc = "Bits 24:27 - Frame Format"]
+    #[inline(always)]
+    pub fn form(&mut self) -> FORM_W {
+        FORM_W { w: self }
+    }
+    #[doc = "Bit 28 - Communication Mode"]
+    #[inline(always)]
+    pub fn cmode(&mut self) -> CMODE_W {
+        CMODE_W { w: self }
+    }
+    #[doc = "Bit 29 - Clock Polarity"]
+    #[inline(always)]
+    pub fn cpol(&mut self) -> CPOL_W {
+        CPOL_W { w: self }
+    }
+    #[doc = "Bit 30 - Data Order"]
+    #[inline(always)]
+    pub fn dord(&mut self) -> DORD_W {
+        DORD_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u32) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Control A\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [ctrla](index.html) module"]
+pub struct CTRLA_SPEC;
+impl crate::RegisterSpec for CTRLA_SPEC {
+    type Ux = u32;
+}
+#[doc = "`read()` method returns [ctrla::R](R) reader structure"]
+impl crate::Readable for CTRLA_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [ctrla::W](W) writer structure"]
+impl crate::Writable for CTRLA_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets CTRLA to value 0"]
+impl crate::Resettable for CTRLA_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/ctrlb.rs b/src/sercom0/usart_ext/ctrlb.rs
new file mode 100644
index 0000000..7b13e7f
--- /dev/null
+++ b/src/sercom0/usart_ext/ctrlb.rs
@@ -0,0 +1,642 @@
+#[doc = "Register `CTRLB` reader"]
+pub struct R(crate::R<CTRLB_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<CTRLB_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<CTRLB_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<CTRLB_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `CTRLB` writer"]
+pub struct W(crate::W<CTRLB_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<CTRLB_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<CTRLB_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<CTRLB_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Character Size\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[repr(u8)]
+pub enum CHSIZE_A {
+    #[doc = "0: 8 Bits"]
+    _8_BIT = 0,
+    #[doc = "1: 9 Bits"]
+    _9_BIT = 1,
+    #[doc = "5: 5 Bits"]
+    _5_BIT = 5,
+    #[doc = "6: 6 Bits"]
+    _6_BIT = 6,
+    #[doc = "7: 7 Bits"]
+    _7_BIT = 7,
+}
+impl From<CHSIZE_A> for u8 {
+    #[inline(always)]
+    fn from(variant: CHSIZE_A) -> Self {
+        variant as _
+    }
+}
+#[doc = "Field `CHSIZE` reader - Character Size"]
+pub struct CHSIZE_R(crate::FieldReader<u8, CHSIZE_A>);
+impl CHSIZE_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        CHSIZE_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> Option<CHSIZE_A> {
+        match self.bits {
+            0 => Some(CHSIZE_A::_8_BIT),
+            1 => Some(CHSIZE_A::_9_BIT),
+            5 => Some(CHSIZE_A::_5_BIT),
+            6 => Some(CHSIZE_A::_6_BIT),
+            7 => Some(CHSIZE_A::_7_BIT),
+            _ => None,
+        }
+    }
+    #[doc = "Checks if the value of the field is `_8_BIT`"]
+    #[inline(always)]
+    pub fn is_8_bit(&self) -> bool {
+        **self == CHSIZE_A::_8_BIT
+    }
+    #[doc = "Checks if the value of the field is `_9_BIT`"]
+    #[inline(always)]
+    pub fn is_9_bit(&self) -> bool {
+        **self == CHSIZE_A::_9_BIT
+    }
+    #[doc = "Checks if the value of the field is `_5_BIT`"]
+    #[inline(always)]
+    pub fn is_5_bit(&self) -> bool {
+        **self == CHSIZE_A::_5_BIT
+    }
+    #[doc = "Checks if the value of the field is `_6_BIT`"]
+    #[inline(always)]
+    pub fn is_6_bit(&self) -> bool {
+        **self == CHSIZE_A::_6_BIT
+    }
+    #[doc = "Checks if the value of the field is `_7_BIT`"]
+    #[inline(always)]
+    pub fn is_7_bit(&self) -> bool {
+        **self == CHSIZE_A::_7_BIT
+    }
+}
+impl core::ops::Deref for CHSIZE_R {
+    type Target = crate::FieldReader<u8, CHSIZE_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CHSIZE` writer - Character Size"]
+pub struct CHSIZE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CHSIZE_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: CHSIZE_A) -> &'a mut W {
+        unsafe { self.bits(variant.into()) }
+    }
+    #[doc = "8 Bits"]
+    #[inline(always)]
+    pub fn _8_bit(self) -> &'a mut W {
+        self.variant(CHSIZE_A::_8_BIT)
+    }
+    #[doc = "9 Bits"]
+    #[inline(always)]
+    pub fn _9_bit(self) -> &'a mut W {
+        self.variant(CHSIZE_A::_9_BIT)
+    }
+    #[doc = "5 Bits"]
+    #[inline(always)]
+    pub fn _5_bit(self) -> &'a mut W {
+        self.variant(CHSIZE_A::_5_BIT)
+    }
+    #[doc = "6 Bits"]
+    #[inline(always)]
+    pub fn _6_bit(self) -> &'a mut W {
+        self.variant(CHSIZE_A::_6_BIT)
+    }
+    #[doc = "7 Bits"]
+    #[inline(always)]
+    pub fn _7_bit(self) -> &'a mut W {
+        self.variant(CHSIZE_A::_7_BIT)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x07) | (value as u32 & 0x07);
+        self.w
+    }
+}
+#[doc = "Stop Bit Mode\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum SBMODE_A {
+    #[doc = "0: One Stop Bit"]
+    _1_BIT = 0,
+    #[doc = "1: Two Stop Bits"]
+    _2_BIT = 1,
+}
+impl From<SBMODE_A> for bool {
+    #[inline(always)]
+    fn from(variant: SBMODE_A) -> Self {
+        variant as u8 != 0
+    }
+}
+#[doc = "Field `SBMODE` reader - Stop Bit Mode"]
+pub struct SBMODE_R(crate::FieldReader<bool, SBMODE_A>);
+impl SBMODE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        SBMODE_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> SBMODE_A {
+        match self.bits {
+            false => SBMODE_A::_1_BIT,
+            true => SBMODE_A::_2_BIT,
+        }
+    }
+    #[doc = "Checks if the value of the field is `_1_BIT`"]
+    #[inline(always)]
+    pub fn is_1_bit(&self) -> bool {
+        **self == SBMODE_A::_1_BIT
+    }
+    #[doc = "Checks if the value of the field is `_2_BIT`"]
+    #[inline(always)]
+    pub fn is_2_bit(&self) -> bool {
+        **self == SBMODE_A::_2_BIT
+    }
+}
+impl core::ops::Deref for SBMODE_R {
+    type Target = crate::FieldReader<bool, SBMODE_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `SBMODE` writer - Stop Bit Mode"]
+pub struct SBMODE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> SBMODE_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: SBMODE_A) -> &'a mut W {
+        self.bit(variant.into())
+    }
+    #[doc = "One Stop Bit"]
+    #[inline(always)]
+    pub fn _1_bit(self) -> &'a mut W {
+        self.variant(SBMODE_A::_1_BIT)
+    }
+    #[doc = "Two Stop Bits"]
+    #[inline(always)]
+    pub fn _2_bit(self) -> &'a mut W {
+        self.variant(SBMODE_A::_2_BIT)
+    }
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 6)) | ((value as u32 & 0x01) << 6);
+        self.w
+    }
+}
+#[doc = "Field `COLDEN` reader - Collision Detection Enable"]
+pub struct COLDEN_R(crate::FieldReader<bool, bool>);
+impl COLDEN_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        COLDEN_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for COLDEN_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `COLDEN` writer - Collision Detection Enable"]
+pub struct COLDEN_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> COLDEN_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 8)) | ((value as u32 & 0x01) << 8);
+        self.w
+    }
+}
+#[doc = "Field `SFDE` reader - Start of Frame Detection Enable"]
+pub struct SFDE_R(crate::FieldReader<bool, bool>);
+impl SFDE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        SFDE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for SFDE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `SFDE` writer - Start of Frame Detection Enable"]
+pub struct SFDE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> SFDE_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 9)) | ((value as u32 & 0x01) << 9);
+        self.w
+    }
+}
+#[doc = "Field `ENC` reader - Encoding Format"]
+pub struct ENC_R(crate::FieldReader<bool, bool>);
+impl ENC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ENC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ENC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ENC` writer - Encoding Format"]
+pub struct ENC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> ENC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 10)) | ((value as u32 & 0x01) << 10);
+        self.w
+    }
+}
+#[doc = "Parity Mode\n\nValue on reset: 0"]
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum PMODE_A {
+    #[doc = "0: Even Parity"]
+    EVEN = 0,
+    #[doc = "1: Odd Parity"]
+    ODD = 1,
+}
+impl From<PMODE_A> for bool {
+    #[inline(always)]
+    fn from(variant: PMODE_A) -> Self {
+        variant as u8 != 0
+    }
+}
+#[doc = "Field `PMODE` reader - Parity Mode"]
+pub struct PMODE_R(crate::FieldReader<bool, PMODE_A>);
+impl PMODE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        PMODE_R(crate::FieldReader::new(bits))
+    }
+    #[doc = r"Get enumerated values variant"]
+    #[inline(always)]
+    pub fn variant(&self) -> PMODE_A {
+        match self.bits {
+            false => PMODE_A::EVEN,
+            true => PMODE_A::ODD,
+        }
+    }
+    #[doc = "Checks if the value of the field is `EVEN`"]
+    #[inline(always)]
+    pub fn is_even(&self) -> bool {
+        **self == PMODE_A::EVEN
+    }
+    #[doc = "Checks if the value of the field is `ODD`"]
+    #[inline(always)]
+    pub fn is_odd(&self) -> bool {
+        **self == PMODE_A::ODD
+    }
+}
+impl core::ops::Deref for PMODE_R {
+    type Target = crate::FieldReader<bool, PMODE_A>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `PMODE` writer - Parity Mode"]
+pub struct PMODE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> PMODE_W<'a> {
+    #[doc = r"Writes `variant` to the field"]
+    #[inline(always)]
+    pub fn variant(self, variant: PMODE_A) -> &'a mut W {
+        self.bit(variant.into())
+    }
+    #[doc = "Even Parity"]
+    #[inline(always)]
+    pub fn even(self) -> &'a mut W {
+        self.variant(PMODE_A::EVEN)
+    }
+    #[doc = "Odd Parity"]
+    #[inline(always)]
+    pub fn odd(self) -> &'a mut W {
+        self.variant(PMODE_A::ODD)
+    }
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 13)) | ((value as u32 & 0x01) << 13);
+        self.w
+    }
+}
+#[doc = "Field `TXEN` reader - Transmitter Enable"]
+pub struct TXEN_R(crate::FieldReader<bool, bool>);
+impl TXEN_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        TXEN_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for TXEN_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `TXEN` writer - Transmitter Enable"]
+pub struct TXEN_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> TXEN_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 16)) | ((value as u32 & 0x01) << 16);
+        self.w
+    }
+}
+#[doc = "Field `RXEN` reader - Receiver Enable"]
+pub struct RXEN_R(crate::FieldReader<bool, bool>);
+impl RXEN_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXEN_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXEN_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXEN` writer - Receiver Enable"]
+pub struct RXEN_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXEN_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 17)) | ((value as u32 & 0x01) << 17);
+        self.w
+    }
+}
+#[doc = "Field `LINCMD` reader - LIN Command"]
+pub struct LINCMD_R(crate::FieldReader<u8, u8>);
+impl LINCMD_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        LINCMD_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for LINCMD_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `LINCMD` writer - LIN Command"]
+pub struct LINCMD_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> LINCMD_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x03 << 24)) | ((value as u32 & 0x03) << 24);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:2 - Character Size"]
+    #[inline(always)]
+    pub fn chsize(&self) -> CHSIZE_R {
+        CHSIZE_R::new((self.bits & 0x07) as u8)
+    }
+    #[doc = "Bit 6 - Stop Bit Mode"]
+    #[inline(always)]
+    pub fn sbmode(&self) -> SBMODE_R {
+        SBMODE_R::new(((self.bits >> 6) & 0x01) != 0)
+    }
+    #[doc = "Bit 8 - Collision Detection Enable"]
+    #[inline(always)]
+    pub fn colden(&self) -> COLDEN_R {
+        COLDEN_R::new(((self.bits >> 8) & 0x01) != 0)
+    }
+    #[doc = "Bit 9 - Start of Frame Detection Enable"]
+    #[inline(always)]
+    pub fn sfde(&self) -> SFDE_R {
+        SFDE_R::new(((self.bits >> 9) & 0x01) != 0)
+    }
+    #[doc = "Bit 10 - Encoding Format"]
+    #[inline(always)]
+    pub fn enc(&self) -> ENC_R {
+        ENC_R::new(((self.bits >> 10) & 0x01) != 0)
+    }
+    #[doc = "Bit 13 - Parity Mode"]
+    #[inline(always)]
+    pub fn pmode(&self) -> PMODE_R {
+        PMODE_R::new(((self.bits >> 13) & 0x01) != 0)
+    }
+    #[doc = "Bit 16 - Transmitter Enable"]
+    #[inline(always)]
+    pub fn txen(&self) -> TXEN_R {
+        TXEN_R::new(((self.bits >> 16) & 0x01) != 0)
+    }
+    #[doc = "Bit 17 - Receiver Enable"]
+    #[inline(always)]
+    pub fn rxen(&self) -> RXEN_R {
+        RXEN_R::new(((self.bits >> 17) & 0x01) != 0)
+    }
+    #[doc = "Bits 24:25 - LIN Command"]
+    #[inline(always)]
+    pub fn lincmd(&self) -> LINCMD_R {
+        LINCMD_R::new(((self.bits >> 24) & 0x03) as u8)
+    }
+}
+impl W {
+    #[doc = "Bits 0:2 - Character Size"]
+    #[inline(always)]
+    pub fn chsize(&mut self) -> CHSIZE_W {
+        CHSIZE_W { w: self }
+    }
+    #[doc = "Bit 6 - Stop Bit Mode"]
+    #[inline(always)]
+    pub fn sbmode(&mut self) -> SBMODE_W {
+        SBMODE_W { w: self }
+    }
+    #[doc = "Bit 8 - Collision Detection Enable"]
+    #[inline(always)]
+    pub fn colden(&mut self) -> COLDEN_W {
+        COLDEN_W { w: self }
+    }
+    #[doc = "Bit 9 - Start of Frame Detection Enable"]
+    #[inline(always)]
+    pub fn sfde(&mut self) -> SFDE_W {
+        SFDE_W { w: self }
+    }
+    #[doc = "Bit 10 - Encoding Format"]
+    #[inline(always)]
+    pub fn enc(&mut self) -> ENC_W {
+        ENC_W { w: self }
+    }
+    #[doc = "Bit 13 - Parity Mode"]
+    #[inline(always)]
+    pub fn pmode(&mut self) -> PMODE_W {
+        PMODE_W { w: self }
+    }
+    #[doc = "Bit 16 - Transmitter Enable"]
+    #[inline(always)]
+    pub fn txen(&mut self) -> TXEN_W {
+        TXEN_W { w: self }
+    }
+    #[doc = "Bit 17 - Receiver Enable"]
+    #[inline(always)]
+    pub fn rxen(&mut self) -> RXEN_W {
+        RXEN_W { w: self }
+    }
+    #[doc = "Bits 24:25 - LIN Command"]
+    #[inline(always)]
+    pub fn lincmd(&mut self) -> LINCMD_W {
+        LINCMD_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u32) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Control B\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [ctrlb](index.html) module"]
+pub struct CTRLB_SPEC;
+impl crate::RegisterSpec for CTRLB_SPEC {
+    type Ux = u32;
+}
+#[doc = "`read()` method returns [ctrlb::R](R) reader structure"]
+impl crate::Readable for CTRLB_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [ctrlb::W](W) writer structure"]
+impl crate::Writable for CTRLB_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets CTRLB to value 0"]
+impl crate::Resettable for CTRLB_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/ctrlc.rs b/src/sercom0/usart_ext/ctrlc.rs
new file mode 100644
index 0000000..48bdae7
--- /dev/null
+++ b/src/sercom0/usart_ext/ctrlc.rs
@@ -0,0 +1,174 @@
+#[doc = "Register `CTRLC` reader"]
+pub struct R(crate::R<CTRLC_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<CTRLC_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<CTRLC_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<CTRLC_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `CTRLC` writer"]
+pub struct W(crate::W<CTRLC_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<CTRLC_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<CTRLC_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<CTRLC_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `GTIME` reader - RS485 Guard Time"]
+pub struct GTIME_R(crate::FieldReader<u8, u8>);
+impl GTIME_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        GTIME_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for GTIME_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `GTIME` writer - RS485 Guard Time"]
+pub struct GTIME_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> GTIME_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x07) | (value as u32 & 0x07);
+        self.w
+    }
+}
+#[doc = "Field `BRKLEN` reader - LIN Master Break Length"]
+pub struct BRKLEN_R(crate::FieldReader<u8, u8>);
+impl BRKLEN_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        BRKLEN_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for BRKLEN_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `BRKLEN` writer - LIN Master Break Length"]
+pub struct BRKLEN_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> BRKLEN_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x03 << 8)) | ((value as u32 & 0x03) << 8);
+        self.w
+    }
+}
+#[doc = "Field `HDRDLY` reader - LIN Master Header Delay"]
+pub struct HDRDLY_R(crate::FieldReader<u8, u8>);
+impl HDRDLY_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        HDRDLY_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for HDRDLY_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `HDRDLY` writer - LIN Master Header Delay"]
+pub struct HDRDLY_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> HDRDLY_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x03 << 10)) | ((value as u32 & 0x03) << 10);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:2 - RS485 Guard Time"]
+    #[inline(always)]
+    pub fn gtime(&self) -> GTIME_R {
+        GTIME_R::new((self.bits & 0x07) as u8)
+    }
+    #[doc = "Bits 8:9 - LIN Master Break Length"]
+    #[inline(always)]
+    pub fn brklen(&self) -> BRKLEN_R {
+        BRKLEN_R::new(((self.bits >> 8) & 0x03) as u8)
+    }
+    #[doc = "Bits 10:11 - LIN Master Header Delay"]
+    #[inline(always)]
+    pub fn hdrdly(&self) -> HDRDLY_R {
+        HDRDLY_R::new(((self.bits >> 10) & 0x03) as u8)
+    }
+}
+impl W {
+    #[doc = "Bits 0:2 - RS485 Guard Time"]
+    #[inline(always)]
+    pub fn gtime(&mut self) -> GTIME_W {
+        GTIME_W { w: self }
+    }
+    #[doc = "Bits 8:9 - LIN Master Break Length"]
+    #[inline(always)]
+    pub fn brklen(&mut self) -> BRKLEN_W {
+        BRKLEN_W { w: self }
+    }
+    #[doc = "Bits 10:11 - LIN Master Header Delay"]
+    #[inline(always)]
+    pub fn hdrdly(&mut self) -> HDRDLY_W {
+        HDRDLY_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u32) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Control C\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [ctrlc](index.html) module"]
+pub struct CTRLC_SPEC;
+impl crate::RegisterSpec for CTRLC_SPEC {
+    type Ux = u32;
+}
+#[doc = "`read()` method returns [ctrlc::R](R) reader structure"]
+impl crate::Readable for CTRLC_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [ctrlc::W](W) writer structure"]
+impl crate::Writable for CTRLC_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets CTRLC to value 0"]
+impl crate::Resettable for CTRLC_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/data.rs b/src/sercom0/usart_ext/data.rs
new file mode 100644
index 0000000..aae74e4
--- /dev/null
+++ b/src/sercom0/usart_ext/data.rs
@@ -0,0 +1,102 @@
+#[doc = "Register `DATA` reader"]
+pub struct R(crate::R<DATA_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<DATA_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<DATA_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<DATA_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `DATA` writer"]
+pub struct W(crate::W<DATA_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<DATA_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<DATA_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<DATA_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `DATA` reader - Data Value"]
+pub struct DATA_R(crate::FieldReader<u16, u16>);
+impl DATA_R {
+    pub(crate) fn new(bits: u16) -> Self {
+        DATA_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for DATA_R {
+    type Target = crate::FieldReader<u16, u16>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `DATA` writer - Data Value"]
+pub struct DATA_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> DATA_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u16) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01ff) | (value as u16 & 0x01ff);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:8 - Data Value"]
+    #[inline(always)]
+    pub fn data(&self) -> DATA_R {
+        DATA_R::new((self.bits & 0x01ff) as u16)
+    }
+}
+impl W {
+    #[doc = "Bits 0:8 - Data Value"]
+    #[inline(always)]
+    pub fn data(&mut self) -> DATA_W {
+        DATA_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u16) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Data\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [data](index.html) module"]
+pub struct DATA_SPEC;
+impl crate::RegisterSpec for DATA_SPEC {
+    type Ux = u16;
+}
+#[doc = "`read()` method returns [data::R](R) reader structure"]
+impl crate::Readable for DATA_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [data::W](W) writer structure"]
+impl crate::Writable for DATA_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets DATA to value 0"]
+impl crate::Resettable for DATA_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/dbgctrl.rs b/src/sercom0/usart_ext/dbgctrl.rs
new file mode 100644
index 0000000..9cd2669
--- /dev/null
+++ b/src/sercom0/usart_ext/dbgctrl.rs
@@ -0,0 +1,112 @@
+#[doc = "Register `DBGCTRL` reader"]
+pub struct R(crate::R<DBGCTRL_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<DBGCTRL_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<DBGCTRL_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<DBGCTRL_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `DBGCTRL` writer"]
+pub struct W(crate::W<DBGCTRL_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<DBGCTRL_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<DBGCTRL_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<DBGCTRL_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `DBGSTOP` reader - Debug Mode"]
+pub struct DBGSTOP_R(crate::FieldReader<bool, bool>);
+impl DBGSTOP_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        DBGSTOP_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for DBGSTOP_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `DBGSTOP` writer - Debug Mode"]
+pub struct DBGSTOP_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> DBGSTOP_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01) | (value as u8 & 0x01);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Debug Mode"]
+    #[inline(always)]
+    pub fn dbgstop(&self) -> DBGSTOP_R {
+        DBGSTOP_R::new((self.bits & 0x01) != 0)
+    }
+}
+impl W {
+    #[doc = "Bit 0 - Debug Mode"]
+    #[inline(always)]
+    pub fn dbgstop(&mut self) -> DBGSTOP_W {
+        DBGSTOP_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u8) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Debug Control\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [dbgctrl](index.html) module"]
+pub struct DBGCTRL_SPEC;
+impl crate::RegisterSpec for DBGCTRL_SPEC {
+    type Ux = u8;
+}
+#[doc = "`read()` method returns [dbgctrl::R](R) reader structure"]
+impl crate::Readable for DBGCTRL_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [dbgctrl::W](W) writer structure"]
+impl crate::Writable for DBGCTRL_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets DBGCTRL to value 0"]
+impl crate::Resettable for DBGCTRL_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/intenclr.rs b/src/sercom0/usart_ext/intenclr.rs
new file mode 100644
index 0000000..b8134ff
--- /dev/null
+++ b/src/sercom0/usart_ext/intenclr.rs
@@ -0,0 +1,388 @@
+#[doc = "Register `INTENCLR` reader"]
+pub struct R(crate::R<INTENCLR_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<INTENCLR_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<INTENCLR_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<INTENCLR_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `INTENCLR` writer"]
+pub struct W(crate::W<INTENCLR_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<INTENCLR_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<INTENCLR_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<INTENCLR_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `DRE` reader - Data Register Empty Interrupt Disable"]
+pub struct DRE_R(crate::FieldReader<bool, bool>);
+impl DRE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        DRE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for DRE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `DRE` writer - Data Register Empty Interrupt Disable"]
+pub struct DRE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> DRE_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01) | (value as u8 & 0x01);
+        self.w
+    }
+}
+#[doc = "Field `TXC` reader - Transmit Complete Interrupt Disable"]
+pub struct TXC_R(crate::FieldReader<bool, bool>);
+impl TXC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        TXC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for TXC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `TXC` writer - Transmit Complete Interrupt Disable"]
+pub struct TXC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> TXC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 1)) | ((value as u8 & 0x01) << 1);
+        self.w
+    }
+}
+#[doc = "Field `RXC` reader - Receive Complete Interrupt Disable"]
+pub struct RXC_R(crate::FieldReader<bool, bool>);
+impl RXC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXC` writer - Receive Complete Interrupt Disable"]
+pub struct RXC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 2)) | ((value as u8 & 0x01) << 2);
+        self.w
+    }
+}
+#[doc = "Field `RXS` reader - Receive Start Interrupt Disable"]
+pub struct RXS_R(crate::FieldReader<bool, bool>);
+impl RXS_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXS_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXS_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXS` writer - Receive Start Interrupt Disable"]
+pub struct RXS_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXS_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 3)) | ((value as u8 & 0x01) << 3);
+        self.w
+    }
+}
+#[doc = "Field `CTSIC` reader - Clear To Send Input Change Interrupt Disable"]
+pub struct CTSIC_R(crate::FieldReader<bool, bool>);
+impl CTSIC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CTSIC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for CTSIC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CTSIC` writer - Clear To Send Input Change Interrupt Disable"]
+pub struct CTSIC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CTSIC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 4)) | ((value as u8 & 0x01) << 4);
+        self.w
+    }
+}
+#[doc = "Field `RXBRK` reader - Break Received Interrupt Disable"]
+pub struct RXBRK_R(crate::FieldReader<bool, bool>);
+impl RXBRK_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXBRK_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXBRK_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXBRK` writer - Break Received Interrupt Disable"]
+pub struct RXBRK_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXBRK_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 5)) | ((value as u8 & 0x01) << 5);
+        self.w
+    }
+}
+#[doc = "Field `ERROR` reader - Combined Error Interrupt Disable"]
+pub struct ERROR_R(crate::FieldReader<bool, bool>);
+impl ERROR_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ERROR_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ERROR_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ERROR` writer - Combined Error Interrupt Disable"]
+pub struct ERROR_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> ERROR_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 7)) | ((value as u8 & 0x01) << 7);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Data Register Empty Interrupt Disable"]
+    #[inline(always)]
+    pub fn dre(&self) -> DRE_R {
+        DRE_R::new((self.bits & 0x01) != 0)
+    }
+    #[doc = "Bit 1 - Transmit Complete Interrupt Disable"]
+    #[inline(always)]
+    pub fn txc(&self) -> TXC_R {
+        TXC_R::new(((self.bits >> 1) & 0x01) != 0)
+    }
+    #[doc = "Bit 2 - Receive Complete Interrupt Disable"]
+    #[inline(always)]
+    pub fn rxc(&self) -> RXC_R {
+        RXC_R::new(((self.bits >> 2) & 0x01) != 0)
+    }
+    #[doc = "Bit 3 - Receive Start Interrupt Disable"]
+    #[inline(always)]
+    pub fn rxs(&self) -> RXS_R {
+        RXS_R::new(((self.bits >> 3) & 0x01) != 0)
+    }
+    #[doc = "Bit 4 - Clear To Send Input Change Interrupt Disable"]
+    #[inline(always)]
+    pub fn ctsic(&self) -> CTSIC_R {
+        CTSIC_R::new(((self.bits >> 4) & 0x01) != 0)
+    }
+    #[doc = "Bit 5 - Break Received Interrupt Disable"]
+    #[inline(always)]
+    pub fn rxbrk(&self) -> RXBRK_R {
+        RXBRK_R::new(((self.bits >> 5) & 0x01) != 0)
+    }
+    #[doc = "Bit 7 - Combined Error Interrupt Disable"]
+    #[inline(always)]
+    pub fn error(&self) -> ERROR_R {
+        ERROR_R::new(((self.bits >> 7) & 0x01) != 0)
+    }
+}
+impl W {
+    #[doc = "Bit 0 - Data Register Empty Interrupt Disable"]
+    #[inline(always)]
+    pub fn dre(&mut self) -> DRE_W {
+        DRE_W { w: self }
+    }
+    #[doc = "Bit 1 - Transmit Complete Interrupt Disable"]
+    #[inline(always)]
+    pub fn txc(&mut self) -> TXC_W {
+        TXC_W { w: self }
+    }
+    #[doc = "Bit 2 - Receive Complete Interrupt Disable"]
+    #[inline(always)]
+    pub fn rxc(&mut self) -> RXC_W {
+        RXC_W { w: self }
+    }
+    #[doc = "Bit 3 - Receive Start Interrupt Disable"]
+    #[inline(always)]
+    pub fn rxs(&mut self) -> RXS_W {
+        RXS_W { w: self }
+    }
+    #[doc = "Bit 4 - Clear To Send Input Change Interrupt Disable"]
+    #[inline(always)]
+    pub fn ctsic(&mut self) -> CTSIC_W {
+        CTSIC_W { w: self }
+    }
+    #[doc = "Bit 5 - Break Received Interrupt Disable"]
+    #[inline(always)]
+    pub fn rxbrk(&mut self) -> RXBRK_W {
+        RXBRK_W { w: self }
+    }
+    #[doc = "Bit 7 - Combined Error Interrupt Disable"]
+    #[inline(always)]
+    pub fn error(&mut self) -> ERROR_W {
+        ERROR_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u8) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Interrupt Enable Clear\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [intenclr](index.html) module"]
+pub struct INTENCLR_SPEC;
+impl crate::RegisterSpec for INTENCLR_SPEC {
+    type Ux = u8;
+}
+#[doc = "`read()` method returns [intenclr::R](R) reader structure"]
+impl crate::Readable for INTENCLR_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [intenclr::W](W) writer structure"]
+impl crate::Writable for INTENCLR_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets INTENCLR to value 0"]
+impl crate::Resettable for INTENCLR_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/intenset.rs b/src/sercom0/usart_ext/intenset.rs
new file mode 100644
index 0000000..c2f4688
--- /dev/null
+++ b/src/sercom0/usart_ext/intenset.rs
@@ -0,0 +1,388 @@
+#[doc = "Register `INTENSET` reader"]
+pub struct R(crate::R<INTENSET_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<INTENSET_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<INTENSET_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<INTENSET_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `INTENSET` writer"]
+pub struct W(crate::W<INTENSET_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<INTENSET_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<INTENSET_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<INTENSET_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `DRE` reader - Data Register Empty Interrupt Enable"]
+pub struct DRE_R(crate::FieldReader<bool, bool>);
+impl DRE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        DRE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for DRE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `DRE` writer - Data Register Empty Interrupt Enable"]
+pub struct DRE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> DRE_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01) | (value as u8 & 0x01);
+        self.w
+    }
+}
+#[doc = "Field `TXC` reader - Transmit Complete Interrupt Enable"]
+pub struct TXC_R(crate::FieldReader<bool, bool>);
+impl TXC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        TXC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for TXC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `TXC` writer - Transmit Complete Interrupt Enable"]
+pub struct TXC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> TXC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 1)) | ((value as u8 & 0x01) << 1);
+        self.w
+    }
+}
+#[doc = "Field `RXC` reader - Receive Complete Interrupt Enable"]
+pub struct RXC_R(crate::FieldReader<bool, bool>);
+impl RXC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXC` writer - Receive Complete Interrupt Enable"]
+pub struct RXC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 2)) | ((value as u8 & 0x01) << 2);
+        self.w
+    }
+}
+#[doc = "Field `RXS` reader - Receive Start Interrupt Enable"]
+pub struct RXS_R(crate::FieldReader<bool, bool>);
+impl RXS_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXS_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXS_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXS` writer - Receive Start Interrupt Enable"]
+pub struct RXS_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXS_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 3)) | ((value as u8 & 0x01) << 3);
+        self.w
+    }
+}
+#[doc = "Field `CTSIC` reader - Clear To Send Input Change Interrupt Enable"]
+pub struct CTSIC_R(crate::FieldReader<bool, bool>);
+impl CTSIC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CTSIC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for CTSIC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CTSIC` writer - Clear To Send Input Change Interrupt Enable"]
+pub struct CTSIC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CTSIC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 4)) | ((value as u8 & 0x01) << 4);
+        self.w
+    }
+}
+#[doc = "Field `RXBRK` reader - Break Received Interrupt Enable"]
+pub struct RXBRK_R(crate::FieldReader<bool, bool>);
+impl RXBRK_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXBRK_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXBRK_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXBRK` writer - Break Received Interrupt Enable"]
+pub struct RXBRK_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXBRK_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 5)) | ((value as u8 & 0x01) << 5);
+        self.w
+    }
+}
+#[doc = "Field `ERROR` reader - Combined Error Interrupt Enable"]
+pub struct ERROR_R(crate::FieldReader<bool, bool>);
+impl ERROR_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ERROR_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ERROR_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ERROR` writer - Combined Error Interrupt Enable"]
+pub struct ERROR_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> ERROR_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 7)) | ((value as u8 & 0x01) << 7);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Data Register Empty Interrupt Enable"]
+    #[inline(always)]
+    pub fn dre(&self) -> DRE_R {
+        DRE_R::new((self.bits & 0x01) != 0)
+    }
+    #[doc = "Bit 1 - Transmit Complete Interrupt Enable"]
+    #[inline(always)]
+    pub fn txc(&self) -> TXC_R {
+        TXC_R::new(((self.bits >> 1) & 0x01) != 0)
+    }
+    #[doc = "Bit 2 - Receive Complete Interrupt Enable"]
+    #[inline(always)]
+    pub fn rxc(&self) -> RXC_R {
+        RXC_R::new(((self.bits >> 2) & 0x01) != 0)
+    }
+    #[doc = "Bit 3 - Receive Start Interrupt Enable"]
+    #[inline(always)]
+    pub fn rxs(&self) -> RXS_R {
+        RXS_R::new(((self.bits >> 3) & 0x01) != 0)
+    }
+    #[doc = "Bit 4 - Clear To Send Input Change Interrupt Enable"]
+    #[inline(always)]
+    pub fn ctsic(&self) -> CTSIC_R {
+        CTSIC_R::new(((self.bits >> 4) & 0x01) != 0)
+    }
+    #[doc = "Bit 5 - Break Received Interrupt Enable"]
+    #[inline(always)]
+    pub fn rxbrk(&self) -> RXBRK_R {
+        RXBRK_R::new(((self.bits >> 5) & 0x01) != 0)
+    }
+    #[doc = "Bit 7 - Combined Error Interrupt Enable"]
+    #[inline(always)]
+    pub fn error(&self) -> ERROR_R {
+        ERROR_R::new(((self.bits >> 7) & 0x01) != 0)
+    }
+}
+impl W {
+    #[doc = "Bit 0 - Data Register Empty Interrupt Enable"]
+    #[inline(always)]
+    pub fn dre(&mut self) -> DRE_W {
+        DRE_W { w: self }
+    }
+    #[doc = "Bit 1 - Transmit Complete Interrupt Enable"]
+    #[inline(always)]
+    pub fn txc(&mut self) -> TXC_W {
+        TXC_W { w: self }
+    }
+    #[doc = "Bit 2 - Receive Complete Interrupt Enable"]
+    #[inline(always)]
+    pub fn rxc(&mut self) -> RXC_W {
+        RXC_W { w: self }
+    }
+    #[doc = "Bit 3 - Receive Start Interrupt Enable"]
+    #[inline(always)]
+    pub fn rxs(&mut self) -> RXS_W {
+        RXS_W { w: self }
+    }
+    #[doc = "Bit 4 - Clear To Send Input Change Interrupt Enable"]
+    #[inline(always)]
+    pub fn ctsic(&mut self) -> CTSIC_W {
+        CTSIC_W { w: self }
+    }
+    #[doc = "Bit 5 - Break Received Interrupt Enable"]
+    #[inline(always)]
+    pub fn rxbrk(&mut self) -> RXBRK_W {
+        RXBRK_W { w: self }
+    }
+    #[doc = "Bit 7 - Combined Error Interrupt Enable"]
+    #[inline(always)]
+    pub fn error(&mut self) -> ERROR_W {
+        ERROR_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u8) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Interrupt Enable Set\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [intenset](index.html) module"]
+pub struct INTENSET_SPEC;
+impl crate::RegisterSpec for INTENSET_SPEC {
+    type Ux = u8;
+}
+#[doc = "`read()` method returns [intenset::R](R) reader structure"]
+impl crate::Readable for INTENSET_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [intenset::W](W) writer structure"]
+impl crate::Writable for INTENSET_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets INTENSET to value 0"]
+impl crate::Resettable for INTENSET_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/intflag.rs b/src/sercom0/usart_ext/intflag.rs
new file mode 100644
index 0000000..bcab031
--- /dev/null
+++ b/src/sercom0/usart_ext/intflag.rs
@@ -0,0 +1,388 @@
+#[doc = "Register `INTFLAG` reader"]
+pub struct R(crate::R<INTFLAG_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<INTFLAG_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<INTFLAG_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<INTFLAG_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `INTFLAG` writer"]
+pub struct W(crate::W<INTFLAG_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<INTFLAG_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<INTFLAG_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<INTFLAG_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `DRE` reader - Data Register Empty Interrupt"]
+pub struct DRE_R(crate::FieldReader<bool, bool>);
+impl DRE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        DRE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for DRE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `DRE` writer - Data Register Empty Interrupt"]
+pub struct DRE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> DRE_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01) | (value as u8 & 0x01);
+        self.w
+    }
+}
+#[doc = "Field `TXC` reader - Transmit Complete Interrupt"]
+pub struct TXC_R(crate::FieldReader<bool, bool>);
+impl TXC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        TXC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for TXC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `TXC` writer - Transmit Complete Interrupt"]
+pub struct TXC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> TXC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 1)) | ((value as u8 & 0x01) << 1);
+        self.w
+    }
+}
+#[doc = "Field `RXC` reader - Receive Complete Interrupt"]
+pub struct RXC_R(crate::FieldReader<bool, bool>);
+impl RXC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXC` writer - Receive Complete Interrupt"]
+pub struct RXC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 2)) | ((value as u8 & 0x01) << 2);
+        self.w
+    }
+}
+#[doc = "Field `RXS` reader - Receive Start Interrupt"]
+pub struct RXS_R(crate::FieldReader<bool, bool>);
+impl RXS_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXS_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXS_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXS` writer - Receive Start Interrupt"]
+pub struct RXS_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXS_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 3)) | ((value as u8 & 0x01) << 3);
+        self.w
+    }
+}
+#[doc = "Field `CTSIC` reader - Clear To Send Input Change Interrupt"]
+pub struct CTSIC_R(crate::FieldReader<bool, bool>);
+impl CTSIC_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CTSIC_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for CTSIC_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CTSIC` writer - Clear To Send Input Change Interrupt"]
+pub struct CTSIC_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CTSIC_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 4)) | ((value as u8 & 0x01) << 4);
+        self.w
+    }
+}
+#[doc = "Field `RXBRK` reader - Break Received Interrupt"]
+pub struct RXBRK_R(crate::FieldReader<bool, bool>);
+impl RXBRK_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        RXBRK_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXBRK_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXBRK` writer - Break Received Interrupt"]
+pub struct RXBRK_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXBRK_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 5)) | ((value as u8 & 0x01) << 5);
+        self.w
+    }
+}
+#[doc = "Field `ERROR` reader - Combined Error Interrupt"]
+pub struct ERROR_R(crate::FieldReader<bool, bool>);
+impl ERROR_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ERROR_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ERROR_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ERROR` writer - Combined Error Interrupt"]
+pub struct ERROR_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> ERROR_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 7)) | ((value as u8 & 0x01) << 7);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Data Register Empty Interrupt"]
+    #[inline(always)]
+    pub fn dre(&self) -> DRE_R {
+        DRE_R::new((self.bits & 0x01) != 0)
+    }
+    #[doc = "Bit 1 - Transmit Complete Interrupt"]
+    #[inline(always)]
+    pub fn txc(&self) -> TXC_R {
+        TXC_R::new(((self.bits >> 1) & 0x01) != 0)
+    }
+    #[doc = "Bit 2 - Receive Complete Interrupt"]
+    #[inline(always)]
+    pub fn rxc(&self) -> RXC_R {
+        RXC_R::new(((self.bits >> 2) & 0x01) != 0)
+    }
+    #[doc = "Bit 3 - Receive Start Interrupt"]
+    #[inline(always)]
+    pub fn rxs(&self) -> RXS_R {
+        RXS_R::new(((self.bits >> 3) & 0x01) != 0)
+    }
+    #[doc = "Bit 4 - Clear To Send Input Change Interrupt"]
+    #[inline(always)]
+    pub fn ctsic(&self) -> CTSIC_R {
+        CTSIC_R::new(((self.bits >> 4) & 0x01) != 0)
+    }
+    #[doc = "Bit 5 - Break Received Interrupt"]
+    #[inline(always)]
+    pub fn rxbrk(&self) -> RXBRK_R {
+        RXBRK_R::new(((self.bits >> 5) & 0x01) != 0)
+    }
+    #[doc = "Bit 7 - Combined Error Interrupt"]
+    #[inline(always)]
+    pub fn error(&self) -> ERROR_R {
+        ERROR_R::new(((self.bits >> 7) & 0x01) != 0)
+    }
+}
+impl W {
+    #[doc = "Bit 0 - Data Register Empty Interrupt"]
+    #[inline(always)]
+    pub fn dre(&mut self) -> DRE_W {
+        DRE_W { w: self }
+    }
+    #[doc = "Bit 1 - Transmit Complete Interrupt"]
+    #[inline(always)]
+    pub fn txc(&mut self) -> TXC_W {
+        TXC_W { w: self }
+    }
+    #[doc = "Bit 2 - Receive Complete Interrupt"]
+    #[inline(always)]
+    pub fn rxc(&mut self) -> RXC_W {
+        RXC_W { w: self }
+    }
+    #[doc = "Bit 3 - Receive Start Interrupt"]
+    #[inline(always)]
+    pub fn rxs(&mut self) -> RXS_W {
+        RXS_W { w: self }
+    }
+    #[doc = "Bit 4 - Clear To Send Input Change Interrupt"]
+    #[inline(always)]
+    pub fn ctsic(&mut self) -> CTSIC_W {
+        CTSIC_W { w: self }
+    }
+    #[doc = "Bit 5 - Break Received Interrupt"]
+    #[inline(always)]
+    pub fn rxbrk(&mut self) -> RXBRK_W {
+        RXBRK_W { w: self }
+    }
+    #[doc = "Bit 7 - Combined Error Interrupt"]
+    #[inline(always)]
+    pub fn error(&mut self) -> ERROR_W {
+        ERROR_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u8) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Interrupt Flag Status and Clear\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [intflag](index.html) module"]
+pub struct INTFLAG_SPEC;
+impl crate::RegisterSpec for INTFLAG_SPEC {
+    type Ux = u8;
+}
+#[doc = "`read()` method returns [intflag::R](R) reader structure"]
+impl crate::Readable for INTFLAG_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [intflag::W](W) writer structure"]
+impl crate::Writable for INTFLAG_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets INTFLAG to value 0"]
+impl crate::Resettable for INTFLAG_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/rxpl.rs b/src/sercom0/usart_ext/rxpl.rs
new file mode 100644
index 0000000..13a2c17
--- /dev/null
+++ b/src/sercom0/usart_ext/rxpl.rs
@@ -0,0 +1,102 @@
+#[doc = "Register `RXPL` reader"]
+pub struct R(crate::R<RXPL_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<RXPL_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<RXPL_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<RXPL_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `RXPL` writer"]
+pub struct W(crate::W<RXPL_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<RXPL_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<RXPL_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<RXPL_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `RXPL` reader - Receive Pulse Length"]
+pub struct RXPL_R(crate::FieldReader<u8, u8>);
+impl RXPL_R {
+    pub(crate) fn new(bits: u8) -> Self {
+        RXPL_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for RXPL_R {
+    type Target = crate::FieldReader<u8, u8>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `RXPL` writer - Receive Pulse Length"]
+pub struct RXPL_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> RXPL_W<'a> {
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub unsafe fn bits(self, value: u8) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0xff) | (value as u8 & 0xff);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bits 0:7 - Receive Pulse Length"]
+    #[inline(always)]
+    pub fn rxpl(&self) -> RXPL_R {
+        RXPL_R::new((self.bits & 0xff) as u8)
+    }
+}
+impl W {
+    #[doc = "Bits 0:7 - Receive Pulse Length"]
+    #[inline(always)]
+    pub fn rxpl(&mut self) -> RXPL_W {
+        RXPL_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u8) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Receive Pulse Length\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [rxpl](index.html) module"]
+pub struct RXPL_SPEC;
+impl crate::RegisterSpec for RXPL_SPEC {
+    type Ux = u8;
+}
+#[doc = "`read()` method returns [rxpl::R](R) reader structure"]
+impl crate::Readable for RXPL_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [rxpl::W](W) writer structure"]
+impl crate::Writable for RXPL_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets RXPL to value 0"]
+impl crate::Resettable for RXPL_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/status.rs b/src/sercom0/usart_ext/status.rs
new file mode 100644
index 0000000..6ea75a6
--- /dev/null
+++ b/src/sercom0/usart_ext/status.rs
@@ -0,0 +1,388 @@
+#[doc = "Register `STATUS` reader"]
+pub struct R(crate::R<STATUS_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<STATUS_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<STATUS_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<STATUS_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Register `STATUS` writer"]
+pub struct W(crate::W<STATUS_SPEC>);
+impl core::ops::Deref for W {
+    type Target = crate::W<STATUS_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl core::ops::DerefMut for W {
+    #[inline(always)]
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+impl From<crate::W<STATUS_SPEC>> for W {
+    #[inline(always)]
+    fn from(writer: crate::W<STATUS_SPEC>) -> Self {
+        W(writer)
+    }
+}
+#[doc = "Field `PERR` reader - Parity Error"]
+pub struct PERR_R(crate::FieldReader<bool, bool>);
+impl PERR_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        PERR_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for PERR_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `PERR` writer - Parity Error"]
+pub struct PERR_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> PERR_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !0x01) | (value as u16 & 0x01);
+        self.w
+    }
+}
+#[doc = "Field `FERR` reader - Frame Error"]
+pub struct FERR_R(crate::FieldReader<bool, bool>);
+impl FERR_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        FERR_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for FERR_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `FERR` writer - Frame Error"]
+pub struct FERR_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> FERR_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 1)) | ((value as u16 & 0x01) << 1);
+        self.w
+    }
+}
+#[doc = "Field `BUFOVF` reader - Buffer Overflow"]
+pub struct BUFOVF_R(crate::FieldReader<bool, bool>);
+impl BUFOVF_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        BUFOVF_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for BUFOVF_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `BUFOVF` writer - Buffer Overflow"]
+pub struct BUFOVF_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> BUFOVF_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 2)) | ((value as u16 & 0x01) << 2);
+        self.w
+    }
+}
+#[doc = "Field `CTS` reader - Clear To Send"]
+pub struct CTS_R(crate::FieldReader<bool, bool>);
+impl CTS_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CTS_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for CTS_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CTS` writer - Clear To Send"]
+pub struct CTS_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> CTS_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 3)) | ((value as u16 & 0x01) << 3);
+        self.w
+    }
+}
+#[doc = "Field `ISF` reader - Inconsistent Sync Field"]
+pub struct ISF_R(crate::FieldReader<bool, bool>);
+impl ISF_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ISF_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ISF_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ISF` writer - Inconsistent Sync Field"]
+pub struct ISF_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> ISF_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 4)) | ((value as u16 & 0x01) << 4);
+        self.w
+    }
+}
+#[doc = "Field `COLL` reader - Collision Detected"]
+pub struct COLL_R(crate::FieldReader<bool, bool>);
+impl COLL_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        COLL_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for COLL_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `COLL` writer - Collision Detected"]
+pub struct COLL_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> COLL_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 5)) | ((value as u16 & 0x01) << 5);
+        self.w
+    }
+}
+#[doc = "Field `TXE` reader - Transmitter Empty"]
+pub struct TXE_R(crate::FieldReader<bool, bool>);
+impl TXE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        TXE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for TXE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `TXE` writer - Transmitter Empty"]
+pub struct TXE_W<'a> {
+    w: &'a mut W,
+}
+impl<'a> TXE_W<'a> {
+    #[doc = r"Sets the field bit"]
+    #[inline(always)]
+    pub fn set_bit(self) -> &'a mut W {
+        self.bit(true)
+    }
+    #[doc = r"Clears the field bit"]
+    #[inline(always)]
+    pub fn clear_bit(self) -> &'a mut W {
+        self.bit(false)
+    }
+    #[doc = r"Writes raw bits to the field"]
+    #[inline(always)]
+    pub fn bit(self, value: bool) -> &'a mut W {
+        self.w.bits = (self.w.bits & !(0x01 << 6)) | ((value as u16 & 0x01) << 6);
+        self.w
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Parity Error"]
+    #[inline(always)]
+    pub fn perr(&self) -> PERR_R {
+        PERR_R::new((self.bits & 0x01) != 0)
+    }
+    #[doc = "Bit 1 - Frame Error"]
+    #[inline(always)]
+    pub fn ferr(&self) -> FERR_R {
+        FERR_R::new(((self.bits >> 1) & 0x01) != 0)
+    }
+    #[doc = "Bit 2 - Buffer Overflow"]
+    #[inline(always)]
+    pub fn bufovf(&self) -> BUFOVF_R {
+        BUFOVF_R::new(((self.bits >> 2) & 0x01) != 0)
+    }
+    #[doc = "Bit 3 - Clear To Send"]
+    #[inline(always)]
+    pub fn cts(&self) -> CTS_R {
+        CTS_R::new(((self.bits >> 3) & 0x01) != 0)
+    }
+    #[doc = "Bit 4 - Inconsistent Sync Field"]
+    #[inline(always)]
+    pub fn isf(&self) -> ISF_R {
+        ISF_R::new(((self.bits >> 4) & 0x01) != 0)
+    }
+    #[doc = "Bit 5 - Collision Detected"]
+    #[inline(always)]
+    pub fn coll(&self) -> COLL_R {
+        COLL_R::new(((self.bits >> 5) & 0x01) != 0)
+    }
+    #[doc = "Bit 6 - Transmitter Empty"]
+    #[inline(always)]
+    pub fn txe(&self) -> TXE_R {
+        TXE_R::new(((self.bits >> 6) & 0x01) != 0)
+    }
+}
+impl W {
+    #[doc = "Bit 0 - Parity Error"]
+    #[inline(always)]
+    pub fn perr(&mut self) -> PERR_W {
+        PERR_W { w: self }
+    }
+    #[doc = "Bit 1 - Frame Error"]
+    #[inline(always)]
+    pub fn ferr(&mut self) -> FERR_W {
+        FERR_W { w: self }
+    }
+    #[doc = "Bit 2 - Buffer Overflow"]
+    #[inline(always)]
+    pub fn bufovf(&mut self) -> BUFOVF_W {
+        BUFOVF_W { w: self }
+    }
+    #[doc = "Bit 3 - Clear To Send"]
+    #[inline(always)]
+    pub fn cts(&mut self) -> CTS_W {
+        CTS_W { w: self }
+    }
+    #[doc = "Bit 4 - Inconsistent Sync Field"]
+    #[inline(always)]
+    pub fn isf(&mut self) -> ISF_W {
+        ISF_W { w: self }
+    }
+    #[doc = "Bit 5 - Collision Detected"]
+    #[inline(always)]
+    pub fn coll(&mut self) -> COLL_W {
+        COLL_W { w: self }
+    }
+    #[doc = "Bit 6 - Transmitter Empty"]
+    #[inline(always)]
+    pub fn txe(&mut self) -> TXE_W {
+        TXE_W { w: self }
+    }
+    #[doc = "Writes raw bits to the register."]
+    #[inline(always)]
+    pub unsafe fn bits(&mut self, bits: u16) -> &mut Self {
+        self.0.bits(bits);
+        self
+    }
+}
+#[doc = "USART_EXT Status\n\nThis register you can [`read`](crate::generic::Reg::read), [`write_with_zero`](crate::generic::Reg::write_with_zero), [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`modify`](crate::generic::Reg::modify). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [status](index.html) module"]
+pub struct STATUS_SPEC;
+impl crate::RegisterSpec for STATUS_SPEC {
+    type Ux = u16;
+}
+#[doc = "`read()` method returns [status::R](R) reader structure"]
+impl crate::Readable for STATUS_SPEC {
+    type Reader = R;
+}
+#[doc = "`write(|w| ..)` method takes [status::W](W) writer structure"]
+impl crate::Writable for STATUS_SPEC {
+    type Writer = W;
+}
+#[doc = "`reset()` method sets STATUS to value 0"]
+impl crate::Resettable for STATUS_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}
diff --git a/src/sercom0/usart_ext/syncbusy.rs b/src/sercom0/usart_ext/syncbusy.rs
new file mode 100644
index 0000000..44dea6f
--- /dev/null
+++ b/src/sercom0/usart_ext/syncbusy.rs
@@ -0,0 +1,90 @@
+#[doc = "Register `SYNCBUSY` reader"]
+pub struct R(crate::R<SYNCBUSY_SPEC>);
+impl core::ops::Deref for R {
+    type Target = crate::R<SYNCBUSY_SPEC>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl From<crate::R<SYNCBUSY_SPEC>> for R {
+    #[inline(always)]
+    fn from(reader: crate::R<SYNCBUSY_SPEC>) -> Self {
+        R(reader)
+    }
+}
+#[doc = "Field `SWRST` reader - Software Reset Synchronization Busy"]
+pub struct SWRST_R(crate::FieldReader<bool, bool>);
+impl SWRST_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        SWRST_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for SWRST_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `ENABLE` reader - SERCOM Enable Synchronization Busy"]
+pub struct ENABLE_R(crate::FieldReader<bool, bool>);
+impl ENABLE_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        ENABLE_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for ENABLE_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+#[doc = "Field `CTRLB` reader - CTRLB Synchronization Busy"]
+pub struct CTRLB_R(crate::FieldReader<bool, bool>);
+impl CTRLB_R {
+    pub(crate) fn new(bits: bool) -> Self {
+        CTRLB_R(crate::FieldReader::new(bits))
+    }
+}
+impl core::ops::Deref for CTRLB_R {
+    type Target = crate::FieldReader<bool, bool>;
+    #[inline(always)]
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl R {
+    #[doc = "Bit 0 - Software Reset Synchronization Busy"]
+    #[inline(always)]
+    pub fn swrst(&self) -> SWRST_R {
+        SWRST_R::new((self.bits & 0x01) != 0)
+    }
+    #[doc = "Bit 1 - SERCOM Enable Synchronization Busy"]
+    #[inline(always)]
+    pub fn enable(&self) -> ENABLE_R {
+        ENABLE_R::new(((self.bits >> 1) & 0x01) != 0)
+    }
+    #[doc = "Bit 2 - CTRLB Synchronization Busy"]
+    #[inline(always)]
+    pub fn ctrlb(&self) -> CTRLB_R {
+        CTRLB_R::new(((self.bits >> 2) & 0x01) != 0)
+    }
+}
+#[doc = "USART_EXT Synchronization Busy\n\nThis register you can [`read`](crate::generic::Reg::read). See [API](https://docs.rs/svd2rust/#read--modify--write-api).\n\nFor information about available fields see [syncbusy](index.html) module"]
+pub struct SYNCBUSY_SPEC;
+impl crate::RegisterSpec for SYNCBUSY_SPEC {
+    type Ux = u32;
+}
+#[doc = "`read()` method returns [syncbusy::R](R) reader structure"]
+impl crate::Readable for SYNCBUSY_SPEC {
+    type Reader = R;
+}
+#[doc = "`reset()` method sets SYNCBUSY to value 0"]
+impl crate::Resettable for SYNCBUSY_SPEC {
+    #[inline(always)]
+    fn reset_value() -> Self::Ux {
+        0
+    }
+}