SPRUJB3C March 2024 – November 2025 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
There are several factors that go in to the speed of processing an interrupt: the interrupt controller, the processor, and the system latency.
The VIM behaves deterministically (except for synchronizer delay). Table 7-37 shows the latency of the VIM.
| Step | Cycles | Note |
|---|---|---|
| Edge Detection | 2-3 | Synchronizing to VIM Clock |
| Interrupt Capture | 1 | |
| Prioritization and Vector Read | 1 | IRQ Could be stalled here if an FIQ is reading the Vector RAM |
| IRQ/FIQ output asserted |
The next factor is the processor itself