The maximum clock frequency of the TM4C1231E6PMI7 is 80 MHz, but it can be overclocked to 120 MHz with some limitations.
The pin muxing on the TM4C1231E6PMI7 can be configured using the Pin Mux Utility tool provided by Texas Instruments, or by writing code to configure the GPIO registers directly.
The main difference between the TM4C1231E6PMI7 and the TM4C1230H6PMI7 is that the TM4C1231E6PMI7 has a larger flash memory (1MB vs 256KB) and more SRAM (32KB vs 16KB).
Yes, the TM4C1231E6PMI7 can be used with operating systems like Linux or FreeRTOS, but it requires porting the OS to the specific microcontroller and configuring the necessary drivers and peripherals.
The TM4C1231E6PMI7 can be debugged and programmed using the Keil µVision IDE, IAR Embedded Workbench, or the Texas Instruments Code Composer Studio (CCS) with a compatible debug probe like the XDS110 or the ICDI.