Arria 10 GX Transceiver Signal Integrity Development Kit User Guide

ID 683553
Date 8/08/2017
Public
Document Table of Contents

6.4.5.3. PMA Setting

Allows you to make changes to the PMA parameters that affect the active transceiver interface. The following settings are available for analysis:
  1. Serial Loopback - Routes signals between the transmitter and the receiver.
  2. VOD - Specifies the voltage output differential of the transmitter buffer.
  3. Pre-emphasis tap :
    • 1st pre - Specifies the amount of pre-emphasis on the pre-tap of the transmitter buffer.
    • 2nd pre - Specifies the amount of pre-emphasis on the second pre-tap of the transmitter buffer.
    • 1st post - Specifies the amount of pre-emphasis on the first post tap of the transmitter buffer.
    • 2nd post - Specifies the amount of pre-emphasis on the second post tap of the transmitter buffer.
  4. Equalizer - Specifies the AC gain setting for the receiver equalizer in four stage mode.
  5. DC Gain - Specifies the DC gain setting for the receiver equalizer in four stage mode.
  6. VGA - Specifies the VGA gain value.
Figure 21. PMA Settings