at91sam9x25-cu ATMEL Corporation, at91sam9x25-cu Datasheet - Page 33

• Manufacturer Part Number: at91sam9x25-cu
• Description: At91sam Arm-based Embedded Mpu
• Manufacturer: ATMEL Corporation

9.3
11054AS–ATARM–29-Jul-11
Peripheral Signal Multiplexing on I/O Lines
Table 9-1.
The SAM9X25 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
Instance
22
23
24
25
26
27
28
29
30
31
ID
Section 4. “Package and
Peripheral Identifiers (Continued)
Instance
HSMCI1
UHPHS
UDPHS
EMAC0
EMAC1
Name
CAN0
CAN1
SSC
AIC
-
Instance Description
USB Host High Speed
USB Device High Speed
Ethernet MAC0
Reserved
High Speed Multimedia Card
Interface 1
Ethernet MAC1
Synchronous Serial Controller
CAN Controller 0
CAN Controller 1
Advanced Interrupt Controller
Pinout”,
Table 4-3
to see the PIO assignments.
External
interrupt
IRQ
SAM9X25
Wired-OR
interrupt
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