Fault-tolerant 32-bit SPARC V8 processor

Overview

The LEON3FT is a fault-tolerant version of the standard LEON3 SPARC V8 Processor. It has been designed for operation in the harsh space environment, and includes functionality to detect and correct (SEU) errors in all on-chip RAM memories.

Key Features

  • The LEON3FT processor support most of the functionality in the standard LEON3 processor, and adds the following features:
    • Register file SEU error-correction of up to 4 errors per 32-bit word
    • Cache memory error-correction of up to 4 errors per tag or 32-bit word
    • Autonomous and software transparent error handling
    • No timing or performance impact due to error detection and correction
  • The following features of the standard LEON3 processor are NOT supported by LEON3FT
    • Local scratch pad RAM (I and D)
    • Cache locking
    • LRR cache replacement algorithm

Technical Specifications

Foundry, Node
Any
Maturity
Production
Availability
Immediate
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Semiconductor IP