PSOC Edge E84: how should always-on detection be divided between its processing domains?

Start with the event rate and the simplest detector that can reliably decide when more processing is needed. The E84 architecture includes an M55 with Ethos-U55 and a low-power M33 path with NNLite. Confirm model support and peripheral routing for the proposed split rather than assuming either accelerator runs every network.

Measure standby detection energy, wakeup cost and the rate of false wakeups. Average power can be modeled as baseline power plus event rate multiplied by extra energy per event. A low-power first stage that wakes the larger workload too often can lose its expected advantage.

Evaluate missed events and false triggers using representative noise and operating conditions. Bound the delay from detection to a usable result and define ownership of shared sensor buffers. Optimize the full detection cycle, including transitions, instead of comparing accelerator execution times alone.