The recommended crystal oscillator frequency for the LM3S808-IQN50-C2 is 12 MHz, as specified in the datasheet. However, it's also possible to use other frequencies such as 16 MHz or 20 MHz, but this may require adjustments to the PLL settings and clock configuration.
To configure the JTAG interface, connect the TDI, TDO, TCK, and TMS pins to a JTAG adapter or debugger, and ensure that the JTAG clock frequency is set to 10 MHz or less. Also, make sure to configure the JTAG pins as inputs in the GPIO configuration.
The maximum current draw of the LM3S808-IQN50-C2 depends on the operating frequency, voltage, and peripheral usage. According to the datasheet, the maximum current draw is approximately 250 mA at 50 MHz and 3.3V, but this can vary depending on the specific application and usage.
The LM3S808-IQN50-C2 has several power-saving modes, including Sleep, Deep Sleep, and Hibernate. To implement these modes, use the Power Management Controller (PMC) to configure the power modes, and use the Clock Management Unit (CMU) to control the clock frequencies and gating. Additionally, use the GPIO configuration to disable unused peripherals and reduce power consumption.
The maximum operating temperature range for the LM3S808-IQN50-C2 is -40°C to 85°C, as specified in the datasheet. However, it's recommended to operate the device within a temperature range of 0°C to 70°C for optimal performance and reliability.
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