July 2004
Intermediate to advanced
1744 pages
35h 3m
English
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Agents Involved in the Snoop Phase
Refer to Figure 50-1 on page 1227. The following agents are involved in the Snoop Phase of the transaction:
The Request Agent issues the transaction request. This can be one of the processors or the chipset. If the transaction is a memory transaction, the Request Agent checks the snoop result presented in the Snoop Phase.
The Snoop Agents are the processors. They latch the transaction and, if it's a memory transaction, submit the memory address to their internal caches for a lookup. They present the snoop result to the Request Agent and to the system memory controller (located in the Root Complex, North Bridge or MCH). If the snoop resulted in a hit on a modified line in a processor's cache, that Snoop Agent ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.