Datasheet

34
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
8.3 Peripheral Signal Multiplexing on I/O Lines
The SAM9G25 features 4 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 “”, Table 4-3 and Table 4-4 to see
the PIO assignments.
23 UDPHS USB Device High Speed
24 EMAC Ethernet MAC
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