> On devices with an A7 or later A-series processor, the delays are enforced by the Secure
Enclave. If the device is restarted during a timed delay, the delay is still enforced, with
the timer starting over for the current period.
This is not super specific, but would imply that the secure enclave has its own storage.
https://www.apple.com/business/docs/iOS_Security_Guide.pdf
> On devices with an A7 or later A-series processor, the delays are enforced by the Secure Enclave. If the device is restarted during a timed delay, the delay is still enforced, with the timer starting over for the current period.
This is not super specific, but would imply that the secure enclave has its own storage.