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Xilinx UG194 Virtex-5 FPGA Embedded Tri-Mode Ethernet MAC ...

Xilinx UG194 Virtex-5 FPGA Embedded Tri-Mode Ethernet MAC ...

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R<br />

Pinout Guidelines<br />

Appendix A<br />

<strong>Xilinx</strong> recommends the following guidelines to improve design timing using the<br />

<strong>Virtex</strong>®-5 <strong>Tri</strong>-<strong>Mode</strong> <strong>Ethernet</strong> <strong>MAC</strong>:<br />

If available, use dedicated global clock pins for the <strong>Ethernet</strong> <strong>MAC</strong> input clocks.<br />

Use the column of IOBs located closest to the <strong>Ethernet</strong> <strong>MAC</strong> block.<br />

Use the RocketIO serial transceivers located closest to the <strong>Ethernet</strong> <strong>MAC</strong> block.<br />

TE<strong>MAC</strong> User Guide www.xilinx.com 203<br />

<strong>UG194</strong> (v1.10) February 14, 2011

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