MSP430FR5721IRHAT datasheet by Texas Instruments

MSP430FR5721IRHAT Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the MSP430FR5721IRHAT?
  The maximum operating temperature range for the MSP430FR5721IRHAT is -40°C to 85°C.
• How do I configure the MSP430FR5721IRHAT for low-power mode?
  To configure the MSP430FR5721IRHAT for low-power mode, you need to set the LPM bits in the status register (SR) to 0x01 for LPM0, 0x02 for LPM1, 0x03 for LPM2, 0x04 for LPM3, or 0x05 for LPM4. You can also use the __bis_SR_register_on_exit() and __bic_SR_register_on_exit() macros to set the LPM bits.
• What is the maximum clock frequency for the MSP430FR5721IRHAT?
  The maximum clock frequency for the MSP430FR5721IRHAT is 16 MHz.
• How do I use the internal oscillator on the MSP430FR5721IRHAT?
  To use the internal oscillator on the MSP430FR5721IRHAT, you need to set the SELS bit in the BCSCTL1 register to 0, and then set the DIVA and DIVS bits in the BCSCTL1 register to select the desired oscillator frequency.
• What is the purpose of the JTAG pins on the MSP430FR5721IRHAT?
  The JTAG pins on the MSP430FR5721IRHAT are used for debugging and programming the device using a JTAG interface. They can also be used as general-purpose I/O pins if JTAG is not being used.