MSP430F2274TDA datasheet by Texas Instruments

MSP430F2274TDA Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MSP430F2274TDA?
  The maximum clock frequency of the MSP430F2274TDA is 16 MHz.
• How do I configure the MSP430F2274TDA to use an external crystal oscillator?
  To configure the MSP430F2274TDA to use an external crystal oscillator, connect the crystal to the XIN and XOUT pins, and set the FLLUNLOCK bit in the FLL_CTL0 register to 1. Then, set the XT2OFF bit in the SYS_CTL register to 0 to enable the external crystal oscillator.
• What is the purpose of the RST/NMI pin on the MSP430F2274TDA?
  The RST/NMI pin on the MSP430F2274TDA 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 that cannot be masked by the interrupt mask register.
• How do I use the watchdog timer on the MSP430F2274TDA?
  To use the watchdog timer on the MSP430F2274TDA, set the WDTCTL register to the desired timeout period, and then enable the watchdog timer by setting the WDTPW bit in the WDTCTL register to 1. The watchdog timer will then reset the device if it is not reset or fed within the specified timeout period.
• What is the purpose of the JTAG pins on the MSP430F2274TDA?
  The JTAG pins on the MSP430F2274TDA are used for debugging and programming the device using a JTAG interface. They allow a debugger or programmer to access the device's memory and registers, and to set breakpoints and inspect variables.