3.2.5.5 PIOBU Lines

The PIOBU lines are special "tamper" inputs used to manage board "events" and make the MPU exit from Backup mode. Typically, they are connected to "event-prone" interfaces.

Table 3-3. PIOBU Lines
PIOBUNetEvent Source
PIOBU2AUX_IO0_0.PIOBU2

AUXILIARY (J73)

M.2

PIOBU3AUX_IO0_0.PIOBU3AUXILIARY (J73)