60.6.3.3.3 Static Intrusion Detectors and Programmable Internal Pull-up/Pull-down
Intrusion detectors can be placed around the system to deter any intrusion attempt. This requires the corresponding I/O lines to be configured as inputs (SECUMOD_PIOBUx.OUTPUT='0'). Each pair of I/Os can be configured in Static or Dynamic Intrusion Detection mode. By default, intrusion detection is in Static Intrusion Detection mode.