SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
Each CPU has a nonmaskable interrupt (NMI) module that detects hardware errors in the system. Each NMI module has a watchdog timer that triggers a reset if the CPU does not respond to an error within a user-specified amount of time. CPU1 NMI watchdog reset (CPU1.NMIWDRS) produces an XRS. The CPU2 NMI watchdog reset (CPU2.NMIWDRS) produces a CPU2.SYSRS and triggers an NMI on CPU1.
After an NMI watchdog reset, the NMIWDRSn bit in the RESC register is set.