3.5.1 PIOBU Interface

The baseboard features eight tamper pins for static or dynamic intrusion detection, UART reception, and two analog pins for comparison.

For a description of intrusion detection, refer to the SAMA5D2 datasheet, chapter "Security Module (SECUMOD)".

Figure 3-41. PIOBU Connector
Figure 3-42. PIOBU Connector J31 Location

The table below describes the pin assignment of PIOBU connector J31.

Table 3-23.  PIOBU Connector J31 Pin Assignment
SignalPin No.Signal
PIOBU212PIOBU3
PIOBU434PIOBU5
PIOBU656RXD
PIOBU778COMPP
COMPN910GND