6021AS–ATARM–03/04

Features

– High Performance 32-bit RISC

– High-density 16-bit Instruction set (Thumb)

– Leader in MIPS/Watt

– Embedded ICE (In Circuit Emulation)

– Maximum External Address Space of 6 Mbytes, Up to Four Chip Select Lines

– Three External Interrupts Including One Fast Interrupt Line

– Three Configurable Modes: Counter, PWM, Capture

– Four External Clock Inputs, Three Multi-purpose I/O Pins per Timer

– One with 32 Buffers, Three with 16 Buffers

– Support for J1587 and LIN Protocols

– 8 to 16-bit Programmable Data Length

– Four External Serial Peripheral Chip Selects

– 32 kHz Oscillator, Main Oscillator and PLL

Description

The AT91SAM7A2 is based on the ARM7TDMI embedded processor. This processor

has a high-performance 32-bit RISC architecture with a high-density 16-bit instruction

set and very low power consumption.

In addition, a large number of internally banked registers result in very fast exception

handling, making the device ideal for real-time control applications.

The AT91SAM7A2 has a direct connection to off-chip memory, including Flash,

through the fully programmable External Bus Interface.

An 8-level priority vectored Interrupt Controller in conjunction with the Peripheral Data

Controller significantly improves the real time performance of the device. The device

is manufactured using high-density CMOS technology.

By combining the ARM7TDMI processor with an on-chip SRAM, and a wide range of

peripheral functions, including USART, SPI, CAN Controllers, Timer Counter and Ana-

log-to-Digital Converters, on a monolithic chip, the AT91SAM7A2 is a powerful device

that provides a flexible, cost-effective solution to many compute-intensive embedded

control applications in the automotive and industrial world.

AT91 ARM

®

Thumb

Microcontrollers

AT91SAM7A2

Summary

Note: This is a summary document. A complete document

is in preparation.