Datasheet

34
SAM9G25 [DATASHEET]
11032D–ATARM–10-Mar-2014
8.3 Peripheral Signal Multiplexing on I/O Lines
The SAM9G25 features four PIO Controllers (PIOA, PIOB, PIOC and PIOD) which multiplex the I/O lines of the
peripheral set.
Each PIO Controller controls 32 lines, 19 lines, 32 lines and 22 lines respectively for PIOA, PIOB, PIOC and PIOD. Each
line can be assigned to one of three peripheral functions, A, B or C. Refer to Section 4. “Package and Pinout”, Table 4-3
and Table 4-4 to see the PIO assignments.
25 ISI Image Sensor Interface
26 HSMCI1 High Speed Multimedia Card Interface 1
28 SSC Synchronous Serial Controller
31 AIC Advanced Interrupt Controller IRQ
Table 8-1. Peripheral Identifiers (Continued)
Instance ID Instance Name Instance Description External interrupt Wired-OR interrupt