PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
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<strong>PCIe</strong> Transactions<br />
n<br />
Software will target Express transactions<br />
between system memory, I/O, and device<br />
configuration operations<br />
l<br />
Originator of transaction will deliver command to the<br />
Transaction Layer of the Express protocol stack<br />
– Serial conditioning begins by moving the operation<br />
through the fabric<br />
l<br />
The <strong>PCIe</strong> Requestor/Completer relationship is shown on the<br />
following slide<br />
– Requestor/Completer relationship is as defined by the<br />
PCI-X software model<br />
Copyright by Dashcourses, Inc. 2009<br />
l<br />
Transaction Layer provides end-to-end services<br />
– Enough information in packet to define transaction type<br />
from Requestor to Completer<br />
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