Pericom Solutions for PCI Express (PCIe) - Hy-Line
Pericom Solutions for PCI Express (PCIe) - Hy-Line
Pericom Solutions for PCI Express (PCIe) - Hy-Line
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<strong>PCI</strong>e Technical Overview<br />
� A <strong>Pericom</strong> Packet Switch operates at the Transaction layer by<br />
reading the data packet header and switching the data from one<br />
port to another directly. No need <strong>for</strong> CPU intervention.<br />
Simplified <strong>PCI</strong>e Port<br />
Device or Switch<br />
Transaction Layer<br />
Data CPU<br />
Link Layer<br />
Physical Layer<br />
+ -<br />
TX<br />
+ -<br />
RX<br />
1 Rx and 1 Tx Pair<br />
= One Lane<br />
11 Copyright <strong>Pericom</strong> Semiconductor 2006<br />
• A <strong>Pericom</strong> Signal Switch operates at the<br />
Physical layer by switching the raw data<br />
stream only. This is good <strong>for</strong> low cost<br />
applications where a packet switch is<br />
not required.<br />
Packet Switch operates here<br />
Signal Switch operates here
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