The maximum clock frequency of the STM8S207R8T6C is 24 MHz, but it can be overclocked to 32 MHz with a reduced voltage supply.
The clock source can be configured using the Clock Security System (CSS) and the Clock Control Register (CKR). The CSS allows selection of the clock source (HSI, HSE, or PLL) and the CKR sets the clock divider and multiplier.
The NPOR (Number of Pages in One Row) and NPER (Number of Pages per Row) bits in the Flash Memory Control Register (FLASHPTR) define the flash memory organization and are used to optimize flash memory access.
The IAP feature allows the microcontroller to modify its own flash memory. To use IAP, the application must use the Flash Memory Interface (FMI) and follow the IAP protocol to write or erase flash memory pages.
The BOR and POR are reset mechanisms that ensure the microcontroller starts up correctly. The BOR resets the device when the supply voltage falls below a certain threshold, while the POR resets the device when power is first applied.