AT91SAM_14 datasheet(33/50 Pages) ATMEL

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SAM7S Series [DATASHEET]

6175KS–ATARM–25-Oct-12

10.

Peripherals

10.1 User Interface

The User Peripherals are mapped in the 256 MBytes of address space between 0xF000 0000 and 0xFFFF EFFF. Each

peripheral is allocated 16 Kbytes of address space.

A complete memory map is provided in Figure 8-1 on page 20.

10.2 Peripheral Identifiers

The SAM7S Series embeds a wide range of peripherals. Table 10-1 defines the Peripheral Identifiers of the

SAM7S512/256/128/64/321/161. Table 10-2 defines the Peripheral Identifiers of the SAM7S32/16. A peripheral identifier

is required for the control of the peripheral interrupt with the Advanced Interrupt Controller and for the control of the

peripheral clock with the Power Management Controller.

Note:

1. Setting SYSC and ADC bits in the clock set/clear registers of the PMC has no effect. The System Controller

is continuously clocked. The ADC clock is automatically started for the first conversion. In Sleep Mode the

ADC clock is automatically stopped after each conversion.

Note:

1. Setting SYSC and ADC bits in the clock set/clear registers of the PMC has no effect. The System Controller

is continuously clocked. The ADC clock is automatically started for the first conversion. In Sleep Mode the

ADC clock is automatically stopped after each conversion.

Table 10-1. Peripheral Identifiers (SAM7S512/256/128/64/321/161)

Peripheral

Mnemonic

Peripheral

Name

External

Interrupt

AIC

Advanced Interrupt Controller

FIQ

SYSC(1)

System

PIOA

Parallel I/O Controller A

Reserved

4ADC(1)

Analog-to Digital Converter

SPI

Serial Peripheral Interface

US0

USART 0

US1

USART 1

SSC

Synchronous Serial Controller

TWI

Two-wire Interface

PWMC

PWM Controller

UDP

USB Device Port

TC0

Timer/Counter 0

TC1

Timer/Counter 1

TC2

Timer/Counter 2

15 - 29

Reserved

AIC

Advanced Interrupt Controller

IRQ0

AIC

Advanced Interrupt Controller

IRQ1

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