diff --git a/data/registers/usart_v2.yaml b/data/registers/usart_v2.yaml
index ca9f8fb..cf64665 100644
--- a/data/registers/usart_v2.yaml
+++ b/data/registers/usart_v2.yaml
@@ -109,6 +109,7 @@ fieldset/CR1:
       description: Receiver wakeup method
       bit_offset: 11
       bit_size: 1
+      enum: WAKE
     - name: M0
       description: Word length
       bit_offset: 12
@@ -299,7 +300,6 @@ fieldset/CR3:
       description: Overrun Disable
       bit_offset: 12
       bit_size: 1
-      enum: OVRDIS
     - name: DDRE
       description: DMA Disable on Reception Error
       bit_offset: 13
@@ -432,37 +432,32 @@ fieldset/DR:
   description: Data register
   fields:
     - name: DR
-      description: data value
+      description: Data value
       bit_offset: 0
       bit_size: 9
 fieldset/RQR:
   description: Request register
   fields:
     - name: ABRRQ
-      description: Auto baud rate request
+      description: Auto baud rate request. Resets the ABRF flag in the USART_ISR and request an automatic baud rate measurement on the next received data frame.
       bit_offset: 0
       bit_size: 1
-      enum: ABRRQ
     - name: SBKRQ
-      description: Send break request
+      description: Send break request. Sets the SBKF flag and request to send a BREAK on the line, as soon as the transmit machine is available
       bit_offset: 1
       bit_size: 1
-      enum: SBKRQ
     - name: MMRQ
-      description: Mute mode request
+      description: Mute mode request. Puts the USART in mute mode and sets the RWU flag.
       bit_offset: 2
       bit_size: 1
-      enum: MMRQ
     - name: RXFRQ
-      description: Receive data flush request
+      description: Receive data flush request. Clears the RXNE flag. This allows to discard the received data without reading it, and avoid an overrun condition
       bit_offset: 3
       bit_size: 1
-      enum: RXFRQ
     - name: TXFRQ
-      description: Transmit data flush request
+      description: Transmit data flush request. Sets the TXE flags. This allows to discard the transmit data.
       bit_offset: 4
       bit_size: 1
-      enum: TXFRQ
 fieldset/RTOR:
   description: Receiver timeout register
   fields:
@@ -489,12 +484,6 @@ enum/ABRMOD:
     - name: Frame55
       description: "0x55 frame detection"
       value: 3
-enum/ABRRQ:
-  bit_size: 1
-  variants:
-    - name: Request
-      description: resets the ABRF flag in the USART_ISR and request an automatic baud rate measurement on the next received data frame
-      value: 1
 enum/ADDM:
   bit_size: 1
   variants:
@@ -531,15 +520,6 @@ enum/DATAINV:
     - name: Negative
       description: Logical data from the data register are send/received in negative/inverse logic
       value: 1
-enum/DDRE:
-  bit_size: 1
-  variants:
-    - name: NotDisabled
-      description: DMA is not disabled in case of reception error
-      value: 0
-    - name: Disabled
-      description: DMA is disabled following a reception error
-      value: 1
 enum/DEP:
   bit_size: 1
   variants:
@@ -603,12 +583,6 @@ enum/M1:
     - name: Bit7
       description: "1 start bit, 7 data bits, n stop bits"
       value: 1
-enum/MMRQ:
-  bit_size: 1
-  variants:
-    - name: Mute
-      description: Puts the USART in mute mode and sets the RWU flag
-      value: 1
 enum/MSBFIRST:
   bit_size: 1
   variants:
@@ -636,15 +610,6 @@ enum/OVER:
     - name: Oversampling8
       description: Oversampling by 8
       value: 1
-enum/OVRDIS:
-  bit_size: 1
-  variants:
-    - name: Enabled
-      description: "Overrun Error Flag, ORE, is set when received data is not read before receiving new data"
-      value: 0
-    - name: Disabled
-      description: Overrun functionality is disabled. If new data is received while the RXNE flag is still set the ORE flag is not set and the new received data overwrites the previous content of the RDR register
-      value: 1
 enum/PS:
   bit_size: 1
   variants:
@@ -654,12 +619,6 @@ enum/PS:
     - name: Odd
       description: Odd parity
       value: 1
-enum/RXFRQ:
-  bit_size: 1
-  variants:
-    - name: Discard
-      description: "clears the RXNE flag. This allows to discard the received data without reading it, and avoid an overrun condition"
-      value: 1
 enum/RXINV:
   bit_size: 1
   variants:
@@ -669,12 +628,6 @@ enum/RXINV:
     - name: Inverted
       description: RX pin signal values are inverted
       value: 1
-enum/SBKRQ:
-  bit_size: 1
-  variants:
-    - name: Break
-      description: "sets the SBKF flag and request to send a BREAK on the line, as soon as the transmit machine is available"
-      value: 1
 enum/STOP:
   bit_size: 2
   variants:
@@ -699,12 +652,6 @@ enum/SWAP:
     - name: Swapped
       description: The TX and RX pins functions are swapped
       value: 1
-enum/TXFRQ:
-  bit_size: 1
-  variants:
-    - name: Discard
-      description: Set the TXE flags. This allows to discard the transmit data
-      value: 1
 enum/TXINV:
   bit_size: 1
   variants: