SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The DSP_SYS_IRQWAKEEN0 / DSP_SYS_IRQWAKEEN1 masking bits must be appropriately set for any valid interrupt mapped from device IRQ_CROSSBAR to the DSP subsystem boundary, to enable its path (passing through the DSP_SYSTEM wakeup logic) to the DSP local interrupt controller - DSP_INTC.
In order for a given interrupt to be serviced by the DSP (even when the Idle Instruction is NOT being executed), the Interrupt must be enabled in the coresponding DSP_SYS_IRQWAKEEN0 or DSP_SYS_IRQWAKEEN1 register.