Добавил:
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
(ARM).Reference peripherals specification.pdf
Скачиваний:
29
Добавлен:
23.08.2013
Размер:
380.31 Кб
Скачать

Introduction

1.2Summary

This document describes a number of functional blocks that make up the set of Reference Peripherals.

The specification gives details for the following elements of a system:

Memory Map

Flexible memory map with variable block base

 

addresses.

 

Fixed offsets from functional block base

 

addresses.

 

See Chapter 2, Memory Map.

Interrupt Controller

Source status and interrupt request status

 

available.

 

Separate enable set and enable clear

 

registers allows independent bit enable

 

control of interrupt sources.

 

Level sensitive interrupts.

 

Programmed interrupt source available

 

See Chapter 3, Interrupt Controller.

Timers

Two 16 bit down count timers.

 

Selectable clock source, normal, ÷16 or ÷256.

 

Free-running or periodic timer modes.

 

See Chapter 4, Timer.

Communications Channel

Defined transmit and receive interrupt

 

mechanism.

 

See Chapter 5, Communications Channel.

Reset and Pause Controller

Defined Boot Behavior with Power-On Reset

 

detection.

 

"Wait for Interrupt" Pause mode.

 

Identification Register.

 

See Chapter 6, Remap and Pause.

A definition of the ARM core used within the system is not included as this is independent of the system programmer's model.

 

 

Reference Peripherals Specification

1-3

 

 

ARM DDI 0062D

 

 

 

 

 

Open Access

Introduction

1-4

Reference Peripherals Specification

 

 

 

ARM DDI 0062D

 

 

 

 

 

 

Open Access

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

Memory Map

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.1

Introduction

2-2

2.2

Memory Map Base Addresses

2-3

 

 

Reference Peripherals Specification

2-1

 

 

ARM DDI 0062D

 

 

 

 

 

Open Access