DisplayPort Intel® FPGA IP User Guide

ID 683273
Date 9/02/2022
Public

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9.12. btc_dprx_lt_eyeq_init

Prototype:

void btc_dprx_lt_eyeq_init(
   BYTE rx_idx 
   BYTE enabled,
   BYTE log_chan_from,
   BYTE log_chan_to
   unsigned int rcnf_base_addr)

Thread-safe:

Yes

Available from ISR:

Yes

Include:

< btc_dprx_syslib.h >

Return:

0 = success, 1 = fail

Parameters:

  • rx_idx—Sink instance index (0 - 3)
  • enabled—0 to disable Eye Viewer (default), 1 to enable Eye Viewer
  • log_chan_from—Reconfiguration controller first logical channel related to this sink (lane0)
  • log_chan_to—Reconfiguration controller last logical channel related to this sink (higher lane supported)
  • rcnf_base_addr—Reconfiguration controller base address

Description:

This function to enable or disable equalizer (AC Gain) automatic management using the Eye Viewer feature of supporting devices. When enabled, a number of RX transceiver features must be supported and their reconfiguration must be enabled too.

Example:

btc_dprx_lt_eyeq_init (0,1,0,3,RECONFIG_MGMT_BASE);