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STM32F2x documentation bug?

Question asked by Holfert.Jan on Aug 7, 2014
Latest reply on Aug 7, 2014 by Clive One
Hello ST,

I have found a discrepancy between the documentation of the STM32F2x MCU and the STM32Cube as well as the StdPeriph implemenation.
On page 656 of the RM (RM0033_CD00225773, DocID15403 Rev 6) it is said that bits 31:9 of the UART DR have to be kept at reset value. However, both STM32Cube and StdPeriph libraries set these bits to 0 at transmit/send.

Does someone from ST can clarify, please.

Best regards,