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

ID 683872
Date 1/25/2023

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2.4.2. Datapath Clock Network

F-tile supports two datapath clocking modes: the system PLL clocking mode and the PMA clocking mode.

  • The system PLL clocking mode, in which the datapath is clocked by one of the three on-board system PLLs, is the recommended datapath clocking mode.
  • The PMA clocking mode is also an option for PMA Direct.

See PMA Data Rates for supported data rates.

Figure 51. PMA Clocking Mode
Figure 52. System PLL Clocking Mode

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