The maximum clock frequency of the MSP430F2012IRSAT is 16 MHz.
To use an external crystal oscillator, connect the crystal to the XIN and XOUT pins, and configure the UCS (Universal Clock System) module to use the external crystal oscillator as the clock source.
The RST/NMI pin is a dual-function pin that can be used as either a reset input (RST) or a non-maskable interrupt (NMI) input. When configured as a reset input, it can be used to reset the device. When configured as an NMI input, it can be used to generate an interrupt.
To use the built-in UART on the MSP430F2012IRSAT, configure the USCI (Universal Serial Communication Interface) module to use the UART mode, and set the baud rate, data bits, stop bits, and parity according to your requirements.
The power consumption of the MSP430F2012IRSAT in low-power mode (LPM3) is approximately 0.5 μA/MHz, depending on the clock frequency and other factors.