SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The system control registers, GS RAMs, IPC module, GPIO qualification, and NMI watchdog timers each have a clock domain (PLLSYSCLK). Despite the name, PLLSYSCLK can be connected to the system PLL (PLLRAWCLK) or to OSCCLK. The chosen clock source is run through a frequency divider, which is configured using the SYSCLKDIVSEL register.