https://devzone.nordicsemi.com/f/nordic-q-a/5217/what-is-the-uart-default-parity-configurationHello, I&#39;m currently reading nRF51_Series_Reference_Manual_v2.1.pdf. On page 28.9.9 there is the UART CONFIG register documented. Two bits of configuration for the Parity (ID B), where the value 0x0 denotes no parity and 0x7 even parity (as far asen-USTelligent Community 13Tue, 20 Jan 2015 16:25:59 GMThttps://devzone.nordicsemi.com/thread/18284?ContentTypeID=1Tue, 20 Jan 2015 16:25:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8213f621-d893-41fc-bf50-37df7c71fde4Torsten Robitzki<p>I&#39;ve downloaded Version 3.0. Thank you now this makes sense ;-) And 0x0 beeing the default.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/18283?ContentTypeID=1Tue, 20 Jan 2015 16:17:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4c845dd3-c90f-4142-9a85-adedc3d462f3Paul<p>Hi Torsten</p> <p>It should be 3 bit ,and 0x0 for excluded, and 0x7 for included. Manual V3.0 fixed this error.</p> <p>The nrf51_bitfields.h is also correct :-)</p> <pre><code>/* Bits 3..1 : Include parity bit. */ #define UART_CONFIG_PARITY_Pos (1UL) /*!&lt; Position of PARITY field. */ #define UART_CONFIG_PARITY_Msk (0x7UL &lt;&lt; UART_CONFIG_PARITY_Pos) /*!&lt; Bit mask of PARITY field. */ #define UART_CONFIG_PARITY_Excluded (0UL) /*!&lt; Parity bit excluded. */ #define UART_CONFIG_PARITY_Included (7UL) /*!&lt; Parity bit included. */ </code></pre><div style="clear:both;"></div>