DisplayPort Intel® FPGA IP User Guide

ID 683273
Date 10/16/2023
Public
Document Table of Contents

10.3.2. DPTX_PRE_VOLT1/DPTX_REG_TXFFE1

These ports drive the respective tx_vod, tx_emp ports (8B/10B channel coding), and tx_reconfig_ffe1 (128B/132B channel coding).

Address: 0x0011

Direction: RW

Reset: 0x00000000

Table 82.  DPTX_PRE_VOLT1/DPTX_REG_TXFFE1 Bits
Bit Bit Name Function
31:8 Unused
7:4 TX_FFE1

128B/132B Channel Coding:

Tx FFE Preset on lane 1

3:2 PRE1

8B/10B Channel Coding:

Pre-emphasis output on lane 1

1:0 VOLT1

8B/10B Channel Coding:

Voltage swing output on lane 1