Stratix V Device Handbook: Volume 2: Transceivers

ID 683779
Date 11/23/2021
Document Table of Contents

6.3. PMA Analog Controls Reconfiguration

You can dynamically reconfigure the analog controls setting after offset cancellation is complete and the reset sequence is performed. You can continue with the subsequent reconfigurations of the analog controls when the reconfig_busy status signal is low. A high on the reconfig_busy signal indicates that the reconfiguration operation is in progress.

You can reconfigure the following transceiver analog controls:

  • Transmitter pre-emphasis
  • Differential output voltage (VOD )
  • Receiver equalizer control
  • Direct-current (DC) gain settings

The dynamic reconfiguration controller provides an Avalon ® Memory-Mapped (Avalon-MM) user interface to dynamically reconfigure individual PMA settings on a per channel basis.