F-tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 12/15/2021
Public

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2.3.2.2.2. Control Unit

The control unit is a firmware wrapper that takes over RX adaptation from the PMA. It also handles auto-negotiation and link training for Ethernet. The control unit can also provide some support for on-die instrumentation (ODI). It is not used when PMA is operating in PCIe* mode.

Figure 44. Control Unit

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