GTS Transceiver PHY User Guide

ID 817660
Date 10/07/2024
Public
Document Table of Contents

2.6.2. Datapath Clock Network

Thee ae 2 datapath clockig modes, the system PLL clockig mode ad the PMA clockig mode.
Fo the system PLL clockig mode, whee the datapath is clocked by the system PLL:
  • The system PLL clockig mode must be used fo PCIe, Etheet, PCS diect ad FEC diect modes.
  • The PMA diect mode ca also be clocked by system PLL.
  • System PLL clockig must be used fo dyamic ecofiguatio.
Figue 27. System PLL Clockig Mode
Fo the PMA clockig mode, which ca oly be used fo PMA diect mode:
  • TX datapath is clocked by the TX PLL
  • RX datapath is clocked by the CDR
Figue 28. PMA Clockig Mode
Refe to Suppoted PMA Data Widths ad Date Rates fo suppoted data ates.