The maximum clock frequency that can be used with the internal oscillator is 16 MHz. However, it's recommended to use a clock frequency of 12 MHz or less to ensure reliable operation.
To configure the MSP430F2101IDWR to use an external crystal oscillator, you need to connect the crystal to the XIN and XOUT pins, and then configure the UCSCTL6 register to select the external crystal oscillator as the clock source.
The minimum voltage required for the MSP430F2101IDWR to operate is 1.8V. However, it's recommended to operate the device at a voltage of 2.2V or higher to ensure reliable operation.
To put the MSP430F2101IDWR into low-power mode, you need to configure the device to enter a low-power mode (LPM) by setting the corresponding bits in the SR register. You can also use the __bis_SR_register_on_exit() function to automatically enter LPM when the device is idle.
No, the MSP430F2101IDWR is not designed to operate with a 5V power supply. The maximum recommended operating voltage is 3.6V. Operating the device at 5V may damage the internal components and affect its reliability.
MSP430F2101IDWR datasheet
by Texas Instruments
