SWCU194 March 2023 CC1314R10 , CC1354P10 , CC1354R10 , CC2674P10 , CC2674R10
The processor has two 24-bit system timers, a Non-secure SysTick timer and a Secure SysTick timer. When enabled, each timer counts down from the reload value to zero, reloads (wraps to) the value in the CPU_SYSTICK:RVR on the next clock cycle, then decrements on subsequent clock cycles. When the processor is halted for debugging, the counter does not decrement.