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Selecting the Optimum PCI Express Clock Source
The PCIe standard has been widely adopted in a broad range of applications and provides designers with flexible solutions for transferring data within their systems. To ensure proper compliance with the PCIe standard, systems require careful attention to the timing subsystem and architecture.
This article explores some of the standard clocking architectures for PCIe and considers their benefits for typical system applications, including:
Clock architecture selection (Common Refclk, Separate Refclk or Data Clocked Refclk)