GTS Transceiver PHY User Guide

ID 817660
Date 7/08/2024
Public
Document Table of Contents

3.3.3. TX Datapath Options

Figure 41. TX Datapath Options in Parameter Editor
Table 23.  TX Datapath Options Parameters
Parameter Values Description
TX PMA Parameters
TX PLL Settings
Output frequency N/A Shows the calculated TX PLL output frequency.
VCO frequency N/A Shows the calculated TX PLL VCO output frequency.
Enable TX PLL cascade mode On/Off

Enable cascade mode for Duplex link only. Default value is Off. Refer to PMA Support for Fractional Mode for more information.

Enable TX PLL fractional mode On/Off

Enables TX PLL’s fractional mode.

Default value is Off.

TX PLL integer mode reference clock frequency 25 to 380 MHz Selects the reference clock frequency (MHz) for the TX PLL. Range is:
  • 25 – 380 MHz when reference clock is configured for PMA clocking.
  • 100 – 380 MHz when reference clock is configured for system PLL or shared with system PLL and PMA clocking.
  • Note: Less than 100 MHz is only for HDMI. The reference clock frequency range changes based on the data rate that you select.
TX PLL fractional mode reference clock frequency 78 to 380 MHz Selects the reference clock frequency (MHz) in fractional mode for the TX PLL. Range is:
  • 78 – 380 MHz when reference clock is configured for PMA clocking.
  • 100 – 380 MHz when reference clock is configured for system PLL or shared with system PLL and PMA clocking.