SPRUIW9C October 2021 – March 2024 TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1
The Hardware Built-In Self-Test (HWBIST) module tests the functionality of the CPU. At the end of the test, it resets the CPU to return it to a working state. This reset (HWBISTRS) only affects the CPU itself. The peripherals and system control remain as previously configured. The CPU state is restored in software as part of a special boot ROM flow. For more information on the HWBIST flow, contact your local TI representative.
After a HWBIST reset, the HWBISTn bit in RESC is set. Software can read this bit to know the cause of reset and clear the status by writing '1' into corresponding bit in RESCCLR register.