Achronix ACE Version 5.0 - Manual (Page 111)

Editors Chapter 3. Concepts
Tx PMA PLL Page
This page allows the customization of the Tx PMA PLL settings for the SerDes. Depending upon whether
the option ”Enable lane-specific Tx PMA PLL Settings” is selected on the
PMA Settings page , one or more
pages with identical available settings will be provided.
Figure 3.56: Tx PMA PLL Page – Serdes Configuration Editor
Tx PLL Settings Page Options
Option Description
Tx PPM When Tx PLL is within this PPM range PMA will consider Tx PLL to be
locked
Enable Spread Spectrum Enables spread-spectrum clock for this transmitter.
Spread Spectrum
Frequency (kHz) Sets the spread-spectrum frequency.
Delta (%) Sets the spread-spectrum delta.
99 http://www.achronix.com UG001 Rev. 5.0 - 5th December 2012