ST STM32F2 User Manual page 457

UM1940
RCC Periph Clock Selection
RCC_PERIPHCLK_I2S
RCC_PERIPHCLK_TIM
RCC_PERIPHCLK_RTC
RCC_PERIPHCLK_PLLI2S
RCC TIM PRescaler Selection
RCC_TIMPRES_DESACTIVATED
RCC_TIMPRES_ACTIVATED
RCC_MCO2SOURCE_HSE: HSE clock
selected as MCO2 source
RCC_MCO2SOURCE_PLLCLK: main PLL
clock selected as MCO2 source
__MCODIV__: specifies the MCO clock prescaler.
This parameter can be one of the following values:
RCC_MCODIV_1: no division applied to MCOx
clock
RCC_MCODIV_2: division by 2 applied to
MCOx clock
RCC_MCODIV_3: division by 3 applied to
MCOx clock
RCC_MCODIV_4: division by 4 applied to
MCOx clock
RCC_MCODIV_5: division by 5 applied to
MCOx clock
DocID028236 Rev 2
HAL RCC Extension Driver
457/1371