PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
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Key Aspects of Transaction Layer<br />
n<br />
n<br />
At a high level, key aspects of<br />
the Transaction Layer are<br />
l<br />
l<br />
l<br />
l<br />
Pipelined full split-transaction<br />
protocol<br />
Differentiating TLPs based on<br />
ordering and processing<br />
requirements<br />
Credit-based flow control<br />
Optional support for data poisoning<br />
and end-to-end data integrity<br />
Interaction is to/from a<br />
Requestor and to/from the<br />
Data Link Layer<br />
Requestor<br />
Transaction Layer<br />
Data Link Layer<br />
Physical Layer<br />
Logical Sub-block<br />
Physical Sub-block<br />
<strong>PCIe</strong><br />
Protocol Stack<br />
Copyright by Dashcourses, Inc. 2009<br />
2-75
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