SPRUJ53C April 2024 – February 2025 TMS320F28P550SG , TMS320F28P550SJ , TMS320F28P559SG-Q1 , TMS320F28P559SJ-Q1
In IDLE mode, the watchdog interrupt (WDINT) signal can generate an interrupt to the CPU to take the CPU out of IDLE mode. As with any other peripheral, the watchdog interrupt triggers a WAKE interrupt in the PIE during IDLE mode. User software must determine which peripheral caused the interrupt.
In HALT mode, the internal oscillators and watchdog timer are kept active if the user sets CLKSRCCTL1.WDHALTI = 1. A watchdog reset can wake the system from HALT mode, but a watchdog interrupt cannot.