July 2004
Intermediate to advanced
1744 pages
35h 3m
English
Content preview from The Unabridged Pentium 4 IA32 Processor Genealogy
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The Address and Data Strobes
Delivering the Request
When a transaction is initiated, the initiating agent outputs two packets of information that completely describe the transaction.
The P6 Request Delivery Method
Refer to Figure 43-2 on page 1120. On the P6 FSB, all of the other agents on the FSB latch the two packets on the rising-edge of the BCLK signal. The time it takes for the entire request (both packets) to be output is therefore two BCLK cycles.
Figure 43-2. Two Information Packets Broadcast during P6 Request Phase
The Pentium® 4/M Request Delivery Method
Refer to Figure 43-3 on page 1121. On the Pentium® 4/M FSB, two new Address Strobe ...
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