Leon3/FT faulttolerance¶

The explanations hereafter are extracted from the Gaisler IP cores user's manual (grip.pdf).
There are two aspects in the fault tolerance: register file protection and cache protection:

• Cache protection is managed with the CCR (Cache Control Register) located in ASI 2, offet 0x00
• Register file protection is managed with the ASR16, Register protection control register

Cache Control Register (ASI 2, offset 0x00)¶

Register protection control register (ASR16)¶

*ASI = Address Space Identifier
*ASR = Ancillary State Register