July 2004
Intermediate to advanced
1744 pages
35h 3m
English
Content preview from The Unabridged Pentium 4 IA32 Processor Genealogy
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FRC Mode
Refer to Figure 20-9 on page 484. The Pentium® was the first IA32 processor to implement FRC Mode and the Pentium® III was the last to implement it. FRC Mode is not implemented on the Pentium® 4, the Pentium® 4 Xeon, or the Pentium® M processor.
Figure 20-9. Pentium® FRC Mode
Two or more Pentium® processors could participate in functional redundancy checking. One processor (the master) fetched and executed instructions and performed FSB transactions in a normal fashion. A checker processor (connected to the master processor's FSB) verified the correctness of the master processor's operations. The master processor fetched and executed ...
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