[136] System: Bits in RESETREAS are set when they should not be

This anomaly applies to IC Rev. Rev 1, build codes QFAA-B00, QFAB-B00, CIAA-B00.

It was inherited from the previous IC revision Engineering C.


After pin reset, RESETREAS bits other than RESETPIN might also be set.


A pin reset has triggered.


If the firmware evaluates RESETREAS, it might take the wrong action.


When RESETREAS shows a pin reset (RESETPIN), ignore other reset reason bits.
Important: RESETREAS bits must be cleared between resets.

Documentation feedback | Developer Zone | Subscribe | Updated 2017-01-12