LM3S9D92-IBZ80-A2 datasheet by Texas Instruments

LM3S9D92-IBZ80-A2 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for this microcontroller?
  The LM3S9D92-IBZ80-A2 can operate from -40°C to 85°C (industrial temperature range) and from -40°C to 105°C (extended temperature range) with some limitations.
• How do I configure the clock source for the microcontroller?
  The clock source can be configured using the PLL (Phase-Locked Loop) and the Clock Control Register (CCR). The PLL can be used to generate a clock frequency up to 50 MHz, and the CCR is used to select the clock source and configure the clock dividers.
• What is the maximum amount of current that can be sourced or sunk by the GPIO pins?
  The maximum current that can be sourced or sunk by the GPIO pins is 4 mA per pin, with a total current limit of 100 mA for all GPIO pins combined.
• How do I implement a watchdog timer on this microcontroller?
  The LM3S9D92-IBZ80-A2 has a built-in watchdog timer that can be enabled and configured using the Watchdog Timer Control Register (WTCR). The watchdog timer can be used to reset the microcontroller if it fails to respond within a specified time period.
• What is the maximum amount of flash memory that can be used for program storage?
  The LM3S9D92-IBZ80-A2 has 256 KB of flash memory, of which 128 KB is reserved for the boot loader and 128 KB is available for user program storage.