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The Unabridged Pentium 4 IA32 Processor Genealogy
book

The Unabridged Pentium 4 IA32 Processor Genealogy

by Tom Shanley, Bob Colwell
July 2004
Intermediate to advanced
1744 pages
35h 3m
English
Addison-Wesley Professional
Content preview from The Unabridged Pentium 4 IA32 Processor Genealogy

The Halt/Grant Snoop State

Refer to Figure 27-4 on page 691. The processor snoops any memory transactions generated on the FSB during both the AutoHalt Power Down and the Stop Grant states. When the Snoop Phase of a memory transaction is detected, the processor temporarily transitions to the Halt/Grant Snoop state, snoops the transaction, returns the snoop result on HIT# and HITM#, and then returns to the state that it entered from.

Figure 27-4. The Halt Grant Snoop State
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ISBN: 032124656XPurchase book