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Leon3FT fault tolerance » History » Revision 4

Revision 3 (paul leroy, 25/01/2016 01:49 PM) → Revision 4/18 (paul leroy, 25/01/2016 01:49 PM)

h1. 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 

 
 h2. Cache Control Register (ASI 2, offset 0x00) 

 
 h2. Register protection control register (ASR16) 

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