MSP430BT5190IZQWR datasheet by Texas Instruments

MSP430BT5190IZQWR Frequently Asked Questions (FAQs)

• What is the recommended crystal oscillator frequency for the MSP430BT5190IZQWR?
  The recommended crystal oscillator frequency for the MSP430BT5190IZQWR is 32.768 kHz, which is the typical frequency used for real-time clock (RTC) applications.
• How do I configure the MSP430BT5190IZQWR for low-power mode?
  To configure the MSP430BT5190IZQWR for low-power mode, you need to set the LPMx bits in the Status Register (SR) to the desired low-power mode (e.g., LPM3 or LPM4). You can also use the __bis_SR_register_on_exit() function to automatically set the low-power mode when the CPU is idle.
• Can I use the MSP430BT5190IZQWR with a 3V battery?
  Yes, the MSP430BT5190IZQWR can operate with a supply voltage as low as 2.2V, making it suitable for use with a 3V battery. However, the device's performance and functionality may be affected at lower voltages, so it's essential to consult the datasheet for specific voltage-related limitations.
• How do I implement a watchdog timer on the MSP430BT5190IZQWR?
  The MSP430BT5190IZQWR has a built-in watchdog timer (WDT) that can be enabled and configured using the WDTCTL register. You need to set the WDT interval and enable the WDT by setting the WDTPW and WDTTMSEL bits in the WDTCTL register.
• Can I use the MSP430BT5190IZQWR for Bluetooth Low Energy (BLE) applications?
  No, the MSP430BT5190IZQWR does not have built-in Bluetooth Low Energy (BLE) capabilities. It's a general-purpose microcontroller with a Bluetooth radio, but it requires an external BLE stack and additional components to implement BLE functionality.