Is there a race condition in the GPIO DETECT signal?

[John]

For example, if I have a GPIO pin configured with low sense, and it goes low just before I call sd_power_system_off(), will the device return to System ON mode immediately, or is the pin transition lost?

[John]

Some experimenting shows that DETECT is actually level-triggered, rather than edge-triggered as stated in the data sheet, which implies there is no race condition.