AT91SAM datasheet(48/67 Pages) ATMEL

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11100BS–ATARM–31-Jul-12

SAM4S Series [Preliminary]

10.16 Peripheral Signal Multiplexing on I/O Lines

The SAM4S features 2 PIO controllers on 64-pin version (PIOA and PIOB) or 3 PIO controllers

on the 100-pin version (PIOA, PIOB and PIOC), that multiplex the I/O lines of the peripheral set.

The SAM4S 64-pin and 100-pin PIO Controllers control up to 32 lines. 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 com-

ments; 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.

TC1

Timer/Counter 1

TC2

Timer/Counter 2

TC3

Timer/Counter 3

TC4

Timer/Counter 4

TC5

Timer/Counter 5

ADC

Analog To Digital Converter

DACC

Digital To Analog Converter

PWM

Pulse Width Modulation

CRCCU

CRC Calculation Unit

ACC

Analog Comparator

UDP

USB Device Port

Table 10-3.

Peripheral Identifiers (Continued)

Instance ID

Instance Name

NVIC Interrupt

PMC

Clock Control

Instance Description

AT91SAM Datasheet(PDF) 48 Page - ATMEL Corporation