The maximum clock frequency that can be used with the internal oscillator is 16 MHz, but it's recommended to use a maximum of 12 MHz to ensure reliable operation.
To configure the WDT to reset the microcontroller, you need to set the WDT clock source to the internal clock (CK_INT), enable the WDT, and set the WDT timeout period using the WDP register. You can also use the WDT to generate an interrupt instead of a reset.
Yes, the UART peripheral can be used in DMA mode to transfer data between the UART and memory. This can help to reduce the CPU load and improve system performance.
The STM8L101F2U6TR has several low-power modes, including Halt, Stop, and Low-Power Run modes. To implement a low-power mode, you need to configure the Power Management Unit (PMU) to select the desired mode, and then use the HALT or STOP instruction to enter the low-power mode.
The maximum current that can be sourced or sunk by the GPIO pins is 20 mA, but it's recommended to limit the current to 10 mA to ensure reliable operation and prevent overheating.