SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
As the subsystem event aggregator requires more than one cycle to process events, there is an internal FIFO to store the generated events. Events may be generated by expiring timers or by activity on the CBA interface, as disabled timers or reset timers must send an event deactivation if the timer was previously expired.
This has an impact on performance, as if there are too many timer expirations in a given window, it potentially violates the 10-µs requirement (this is true without the event FIFO as well, given that the system cannot keep up with a timer expiring every cycle, in the worst case).