46.3 Tamper Response

The AT module can generate different responses to a tamper event based on the programmed tamper level for the source as shown in the block diagram. Setting an input to Level 0, disables that tamper source. Setting an input to Level 1, only generates an interrupt for that source on a tamper indication. The CAM/CAM-lite macros implement functions for 2, 3, and 4 levels, based on processing triggered by a tamper interrupt. Level 5 erases the tamper key and generates an interrupt. Level 6 erases the Flash key, tamper key, and generates an interrupt. The tamper response levels are provided in the following table.