diff --git a/data/registers/otg_v2.yaml b/data/registers/otg_v2.yaml
index cde4fd3..6855158 100644
--- a/data/registers/otg_v2.yaml
+++ b/data/registers/otg_v2.yaml
@@ -339,6 +339,10 @@ fieldset/DIEPCTL:
       description: MPSIZ
       bit_offset: 0
       bit_size: 11
+    - name: MPSIZ0
+      description: MPSIZ for endpoint 0
+      bit_offset: 0
+      bit_size: 2
     - name: USBAEP
       description: USBAEP
       bit_offset: 15
@@ -502,6 +506,11 @@ fieldset/DOEPCTL:
       description: MPSIZ
       bit_offset: 0
       bit_size: 11
+    - name: MPSIZ0
+      description: MPSIZ for endpoint 0
+      bit_offset: 0
+      bit_size: 2
+      access: Read
     - name: USBAEP
       description: USBAEP
       bit_offset: 15