AT697E_09 datasheet(2/154 Pages) ATMEL

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AT697E

4226G–AERO–05/09

Description

The AT697 is a highly integrated, high-performance 32-bit RISC embedded processor

based on the SPARC V8 architecture. The implementation is based on the European

Space Agency (ESA) LEON2 fault tolerant model. By executing powerful instructions in

a single clock cycle, the AT697 achieves throughputs approaching 1MIPS per MHz,

allowing the system designer to optimize power consumption versus processing speed.

The AT697 is designed to be used as a building block in computers for on-board embed-

ded real-time applications. It brings up-to-date functionality and performance for space

application.

The AT697 only requires memory and application specific peripherals to be added to

form a complete on-board computer.

The AT697 contains an on-chip Integer Unit (IU), a Floating Point Unit (FPU), separate

instruction and data caches, hardware multiplier and divider, interrupt controller, debug

support unit with trace buffer, two 24-bit timers, Parallel and Serial interfaces, a Watch-

dog, a PCI Interface and a flexible Memory Controller. The design is highly testable with

the support of a Debug Support Unit (DSU) and a boundary scan through JTAG

interface.

An Idle mode holds the processor pipeline and allows Timer/Counter, Serial ports and

Interrupt system to continue functioning.

The processor is manufactured using the Atmel 0.18 µm CMOS process. It has been

especially designed for space, by implementing on-chip concurrent transient and per-

manent error detection and correction.

The AT697E is the first version of the AT697 processor. A second version of the AT697

processor, the AT697F, is under development.

The AT697F will have improved radiation capabilities (up to 100Krad) and will correct all

the bugs described in the AT697E errata sheet. The AT697F will be pinout compatible

with the AT697E.

AT697E Scheda tecnica(PDF) 2 Page - ATMEL Corporation