Datasheet

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11011AS–ATARM–04-Oct-10
SAM3N Summary
10.2 Peripheral Signals Multiplexing on I/O Lines
The SAM3N product features 2 PIO controllers (48-pin and 64-pin version) or 3 PIO controllers
(100-pin version), PIOA, PIOB and PIOC, that multiplex the I/O lines of the peripheral set.
The SAM3N 64-pin and 100-pin PIO Controller controls up to 32 lines (see Table 9-2, “PIO avail-
able according to pin count,” on page 39). Each line can be assigned to one of three peripheral
functions: A, B or C. The multiplexing tables in the following paragraphs define how the I/O lines
of the peripherals A, B and C are multiplexed on the PIO Controllers. The column “Comments”
has been inserted in this table for the user’s own comments; it may be used to track how pins
are defined in an application.
Note that some peripheral functions which are output only, might be duplicated within the tables.
25 TC2 XXTimer/Counter 2
26 TC3 XXTimer/Counter 3
27 TC4 XXTimer/Counter 4
28 TC5 XXTimer/Counter 5
29 ADC XXAnalog-to-Digital Converter
30 DACC XXDigital-to-Analog Converter
31 PWM XXPulse Width Modulation
Table 10-1. Peripheral Identifiers (Continued)
Instance ID Instance Name NVIC Interrupt PMC Clock Control Instance Description