GTS Transceiver PHY User Guide

ID 817660
Date 4/01/2024
Public

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Document Table of Contents

8.1. GTS Transceiver Toolkit Parameter Settings

The following table describes the transceiver toolkit parameter settings.
Table 70.  Transceiver Toolkit Parameter Settings
Parameter Description Control Pane
Bit error rate (BER) Reports the number of errors divided by bits tested since the last reset of the checker. When RX CDR is locked to reference clock or PRBS checker is not locked, the BER reported is not reliable. Receiver pane
Clear Stats Clear the current number of bits tested, number of error bits and BER. Receiver pane
Hard PRBS checker running

Not Running: checker stops.

Running: checker is checking, and data pattern is locked.

Receiver pane
Hard PRBS generator running

Not Running: generator stops.

Running: generator is sending a pattern.

Transmitter pane
Inject Error Inject a bit error in the transmitter PRBS pattern. Transmitter pane
Line encoding Specifies the modulation type used for serial data. Transmitter and receiver pane
Loopback mode Select the loopbacks mode. The available options are:
  • RX2TXPAR (Reversed Parallel Loopback) - PMA-receiver-to-transmitter parallel loopback
  • TX2RXPAR (Parallel Loopback) - PMA-transmitter-to-receiver parallel loopback
  • TX2RXBUF (Serial Internal Loopback) - PMA-transmitter-to-receiver buffer loopback
Transmitter and receiver pane
Number of bits tested Specifies the number of bits tested since the last reset of the checker. When RX CDR is locked to reference clock or PRBS checker is not locked, the BER reported is not reliable Receiver pane
Number of error bits Specifies the number of error bits encountered since the last reset of the checker. When RX CDR is locked to reference clock or PRBS checker is not locked, the BER reported is not reliable Receiver pane
PRBS pattern Select the test pattern for the bit error test. Transmitter and receiver pane
RX PMA Settings RX Equalization settings. Receiver pane
RX PMA Advance Settings Displays the values of the DFE Data Taps 2 through 16. Receiver pane
Eye Measurements Provides interface for measuring the Eye Width and Eye Height as well as saving the measurements into CSV. Receiver Pane
Set Working Directory Allows you to change the folder used as the working directory. You can use it you want to save the exported Eye measurements CSV into your chosen path Toolkits Parameters tab
Invert Polarity Allows you to enable TX or RX polarity inversion Receiver pane
RX CDR locked to data Locked: Indicates the receiver CDR is in lock-to-data (LTD) mode.

Not Locked: Indicates the receiver CDR is not locked to incoming data.

Receiver pane
RX CDR locked to ref clock Locked: Indicates the receiver CDR is in lock-to-reference (LTR) mode.

Not Locked: Indicates the receiver CDR is not locked to reference clock.

Don't Care: When the receiver CDR is in LTD mode.

Receiver pane
RX Reset PMA Reset the RX datapath. Receiver pane
Start Starts the pattern generator or checker on the channel to verify incoming data. Transmitter and receiver pane
Stop Stops generating patterns and testing the channel. Transmitter and receiver pane
TX Equalization Parameters

Post_tap_1

Main_tap

Pre_tap_1

Pre_tap_2

Transmitter pane and receiver pane
TX Reset PMA Reset the TX PMA datapath. Transmitter pane