PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
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Functional Requirements of Data Link Layer<br />
n<br />
The Data Link Layer comprehends the following<br />
l<br />
DLLP construction<br />
– Packets for Link services<br />
• Link initialization, training, link power management<br />
– Packets for TLP acknowledgements<br />
• All received TLPs generate an Ack or Nak DLLP<br />
– ID routed to Transaction ID from the received TLP<br />
n<br />
Data Link Layer provides conditioning and<br />
tracking of TLPs for normal operation<br />
n<br />
DLLPs and TLPs are the primary packets seen on<br />
the Link<br />
Copyright by Dashcourses, Inc. 2009<br />
3-98