The maximum clock frequency that can be used with the internal oscillator is 4 MHz. However, it's recommended to use a crystal oscillator or an external clock source for more accurate and stable clocking.
To configure the watchdog timer, you need to set the WDTCLK register to select the clock source, set the WDTCNT register to set the timeout period, and enable the watchdog timer by setting the WDTEN bit in the WDTCTL register. You can also use the watchdog timer in window mode to reset the MCU if the timer is not serviced within a specific time window.
Yes, the MC9S08LC36LK has a 12-bit ADC that can be used to convert analog signals from external sensors. You need to configure the ADC channel, set the ADC clock, and enable the ADC conversion. You can also use the ADC in continuous conversion mode or single-shot mode depending on your application requirements.
To implement a UART communication protocol using the SCI module, you need to configure the SCI baud rate, set the SCI mode (e.g., asynchronous or synchronous), and enable the SCI transmitter and receiver. You can also use the SCI interrupts to handle received data and transmit data.
The maximum current that can be sourced or sunk by the GPIO pins is 25 mA. However, it's recommended to limit the current to 10 mA or less to ensure reliable operation and to prevent overheating.
MC9S08LC36LK datasheet
by Freescale Semiconductor
