The maximum clock frequency of the TM4C1231C3PMIR is 80 MHz, but it can be overclocked to 120 MHz with some limitations.
The pin muxing on the TM4C1231C3PMIR can be configured using the Pin Mux Utility tool provided by Texas Instruments, or by manually setting the registers in the System Control Module (SYSCTL).
The main difference between the TM4C1231C3PMIR and the TM4C1231H6PMIR is the package type. The TM4C1231C3PMIR is in a QFN package, while the TM4C1231H6PMIR is in a BGA package. The BGA package has more pins and provides more I/O options.
The ADC on the TM4C1231C3PMIR can be used by configuring the ADC module, selecting the input channel, and starting the conversion. The ADC result can be read from the ADC FIFO or by using the DMA to transfer the data to memory.
The power consumption of the TM4C1231C3PMIR depends on the clock frequency, voltage, and operating mode. In active mode, the power consumption is around 150 mA at 80 MHz and 3.3V. In sleep mode, the power consumption is around 10 uA.