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PRELIMINARY

AT91SAM7A1 Summary

6048AS–ATARM–07/04

Description

AT91SAM7A1 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 AT91SAM7A1 has a direct connection to off-chip memory, including Flash, through

the fully-programmable External Bus Interface.

An eight-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 microcontroller core with an on-chip RAM and a wide

range of peripheral functions, including USART, SPI, CAN Controllers, Timer Counter

and Analog-to-digital Converter, on a monolithic chip, the AT91SAM7A1 is a powerful

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

embedded control applications in the automotive and industrial world.