STM8AF6288TCY datasheet by STMicroelectronics

STM8AF6288TCY Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the internal oscillator?
  The maximum clock frequency that can be used with the internal oscillator is 16 MHz.
• How do I configure the watchdog timer to reset the microcontroller?
  To configure the watchdog timer to reset the microcontroller, set the WDPG bit in the WCR register to 1, and then set the WDV bit to 1 to enable the watchdog timer. The watchdog timer will then reset the microcontroller if it is not reset or disabled within the timeout period.
• What is the purpose of the BOR (Brown-Out Reset) circuitry?
  The BOR circuitry is used to reset the microcontroller if the supply voltage falls below a certain threshold (typically 1.9V). This helps to prevent the microcontroller from operating erratically or unpredictably during power-on or power-down sequences.
• How do I use the I2C interface to communicate with external devices?
  To use the I2C interface, configure the I2C peripheral by setting the I2C_CR1 register to enable the I2C interface, and then set the I2C_CR2 register to configure the I2C clock frequency. Then, use the I2C_DR register to transmit and receive data on the I2C bus.
• What is the purpose of the BOOTLOADER jumper on the evaluation board?
  The BOOTLOADER jumper on the evaluation board is used to select the boot mode of the microcontroller. When the jumper is closed, the microcontroller boots from the internal flash memory. When the jumper is open, the microcontroller boots from the external memory or a serial interface.