PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
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Sub-Block Interaction<br />
n<br />
Logical and Electrical sub-blocks each have two main<br />
sections<br />
l Transmit section<br />
– Logical sub-block prepares outgoing packets received<br />
from the Data Link Layer, performs 8B/10B symbol<br />
encoding, and passes symbols to the Electrical subblock<br />
– Electrical sub-block takes conditioned symbols received<br />
from Logical sub-block and transmits in a serial bit<br />
stream out the device’s physical transmit port<br />
l Receive section<br />
– Electrical sub-block receives a serial bit stream over the<br />
device’s physical receive port, recovers the clock, strips<br />
the framing bits, and passes a symbols to the Logical<br />
sub-block<br />
– Logical sub-block performs 10B/8B decoding and<br />
passes packet to the Data Link Layer<br />
Copyright by Dashcourses, Inc. 2009<br />
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