AT91SAM9G20 datasheet(39/832 Pages) ATMEL

номер детали	AT91SAM9G20

подробное описание детали	AT91 ARM Thumb Microcontrollers

PDF	832 Pages

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производитель	ATMEL [ATMEL Corporation]

домашняя страница	http://www.atmel.com

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6384D–ATARM–04-May-09

AT91SAM9G20 Preliminary

11. ARM926EJ-S Processor Overview

11.1

Overview

The ARM926EJ-S processor is a member of the ARM9™ family of general-purpose microproces-

sors. The ARM926EJ-S implements ARM architecture version 5TEJ and is targeted at multi-

tasking applications where full memory management, high performance, low die size and low

power are all important features.

The ARM926EJ-S processor supports the 32-bit ARM and 16-bit THUMB instruction sets,

enabling the user to trade off between high performance and high code density. It also supports

8-bit Java instruction set and includes features for efficient execution of Java bytecode, provid-

ing a Java performance similar to a JIT (Just-In-Time compilers), for the next generation of Java-

powered wireless and embedded devices. It includes an enhanced multiplier design for

improved DSP performance.

The ARM926EJ-S processor supports the ARM debug architecture and includes logic to assist

in both hardware and software debug.

The ARM926EJ-S provides a complete high performance processor subsystem, including:

• an ARM9EJ-S

™ integer core

• a Memory Management Unit (MMU)

• separate instruction and data AMBA AHB bus interfaces

• separate instruction and data TCM interfaces

AT91SAM9G20 датащи(PDF) 39 Page - ATMEL Corporation