The maximum clock frequency of the TM4C1299KCZADI3 is 120 MHz.
The pin muxing on the TM4C1299KCZADI3 can be configured using the Pin Muxing Register (PMCn) and the Pin Configuration Register (PCn). Refer to the datasheet for specific register addresses and bit fields.
Yes, the TM4C1299KCZADI3 can be used with an external crystal oscillator. The microcontroller has a built-in phase-locked loop (PLL) that can be used to multiply the external clock frequency.
The TM4C1299KCZADI3 has a built-in watchdog timer (WDT) that can be enabled and configured using the Watchdog Timer Control Register (WDTCTL) and the Watchdog Timer Load Register (WDTLOAD).
The TM4C1299KCZADI3 has 1 MB of flash memory available for program storage.