LPC1110FD20,529 datasheet by NXP Semiconductors

LPC1110FD20,529 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 12 MHz. However, it's recommended to use a crystal oscillator or an external clock source for more accurate and stable clocking.
• How do I configure the pin multiplexing to use the I2C interface?
  To configure the pin multiplexing for I2C, you need to set the PINSEL0 register to select the I2C function for the desired pins. For example, to use P0.27 as SCL and P0.28 as SDA, set PINSEL0[27:27] = 0x02 and PINSEL0[28:28] = 0x02.
• What is the minimum voltage required for the ADC to operate correctly?
  The minimum voltage required for the ADC to operate correctly is 2.4V. However, it's recommended to use a voltage of at least 2.7V for optimal performance.
• How do I enable the brown-out detection (BOD) feature?
  To enable the BOD feature, set the BODRST and BODEN bits in the SYSCONFIG register. You can also adjust the BOD voltage threshold by writing to the BODVOLT register.
• What is the maximum current that can be sourced or sunk by a GPIO pin?
  The maximum current that can be sourced or sunk by a GPIO pin is 4mA. However, it's recommended to limit the current to 2mA or less to ensure reliable operation.