R register.</li>
<li>Used RCC_CFGR_MCOSEL as reference in all the families.</li>
<li>Renamed RCC_CFGR_MCOSEL_PLL to RCC_CFGR_MCOSEL_PLL_DIV2 for alignment between all families.</li>
<li>Updated EWUPx pins defintions for STM32F042x6 and STM32F048xx devices.</li>
<li>Added FLASHSIZE_BASE and UID_BASE defines.</li>
<li>Added missing bits definition for RTC_TAFCR register.</li>
<li>Added missing bits definition for I2C_OAR2 register (I2C_OAR2 mask values).</li>
<li>Renamed I2C_CR1_DFN to I2C_CR1_DNF bit definit