MSP430F2274IYFFR datasheet by Texas Instruments

MSP430F2274IYFFR 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. However, it's recommended to use a crystal oscillator for more accurate and stable clock signals.
• How do I configure the GPIO pins as inputs or outputs?
  The GPIO pins can be configured as inputs or outputs using the PxDIR (Port x Direction) register. Setting a bit in PxDIR to 1 configures the corresponding pin as an output, while setting it to 0 configures it as an input.
• What is the purpose of the JTAG pins, and how do I use them?
  The JTAG pins (TCK, TMS, TDI, and TDO) are used for debugging and programming the device using the JTAG interface. They can be used with a JTAG debugger or programmer to load code, set breakpoints, and inspect registers.
• How do I use the watchdog timer (WDT) to reset the device?
  The WDT can be enabled by setting the WDTCTL (Watchdog Timer Control) register. The WDT will reset the device if it is not reset or fed within a certain time period (typically 32ms). The WDT can be used to detect and recover from software faults or hangs.
• What is the power consumption of the device in different modes?
  The power consumption of the MSP430F2274IYFFR varies depending on the operating mode. In active mode, the current consumption is around 230uA/MHz. In low-power mode 3 (LPM3), the current consumption is around 1.1uA. In shutdown mode, the current consumption is around 0.1uA.