36.2.1 RCC specific features ..................................................................... 418
36.2.2 RCC Limitations .............................................................................. 419
36.2.3 Initialization and de-initialization functions ..................................... 419
36.2.4 Peripheral Control functions ........................................................... 420
36.2.5 Detailed description of functions .................................................... 420
36.3 RCC Firmware driver defines ........................................................ 425
36.3.1 RCC ................................................................................................ 425
37 HAL RCC Extension Driver ......................................................... 453
37.1 RCCEx Firmware driver registers structures ................................. 453
37.1.1 RCC_PLLI2SInitTypeDef................................................................ 453
37.1.2 RCC_PeriphCLKInitTypeDef .......................................................... 453
37.2 RCCEx Firmware driver API description ....................................... 453
37.2.1 Extended Peripheral Control functions ........................................... 453
37.2.2 Detailed description of functions .................................................... 454
37.3 RCCEx Firmware driver defines .................................................... 454
37.3.1 RCCEx ............................................................................................ 454
38 HAL RNG Generic Driver............................................................. 458
38.1 RNG Firmware driver registers structures ..................................... 458
38.1.1 RNG_HandleTypeDef..................................................................... 458
38.2 RNG Firmware driver API description ........................................... 458
38.2.1 How to use this driver ..................................................................... 458
38.2.2 Initialization and de-initialization functions ..................................... 458
38.2.3 Peripheral Control functions ........................................................... 459
38.2.4 Peripheral State functions .............................................................. 459
38.2.5 Detailed description of functions .................................................... 459
38.3 RNG Firmware driver defines ........................................................ 462
38.3.1 RNG ................................................................................................ 462
39 HAL RTC Generic Driver ............................................................. 465
39.1 RTC Firmware driver registers structures ..................................... 465
39.1.1 RTC_InitTypeDef ............................................................................ 465
39.1.2 RTC_TimeTypeDef ......................................................................... 465
39.1.3 RTC_DateTypeDef ......................................................................... 466
39.1.4 RTC_AlarmTypeDef ....................................................................... 466
39.1.5 RTC_HandleTypeDef ..................................................................... 467
39.2 RTC Firmware driver API description ............................................ 467
39.2.1 Backup Domain Operating Condition ............................................. 467