SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
One of INTOSC2, XTAL, or INTOSC1 must be chosen to be the controller reference clock (OSCCLK) for the CPU and most of the peripherals. OSCCLK can be used directly or applied through the system PLL to reach a higher frequency. At reset, OSCCLK is the default system clock and is connected to INTOSC2.