V-Series Transceiver PHY IP Core User Guide

ID 683171
Date 7/26/2022
Public
Document Table of Contents

11.12. Optional Reset Control and Status Interface

The following table describes the signals in the optional reset control and status interface. These signals are available if you do not enable the embedded reset controller. For more information including timing diagrams, refer to Transceiver Reset Control in Stratix V Devices in volume 2 of the Stratix V Device Handbook.

Table 158.  Avalon-ST RX Interface  

Signal Name

Direction

Description

pll_powerdown

Input

When asserted, resets the TX PLL.

tx_digitalreset[<n>-1:0]

Input

When asserted, reset all blocks in the TX PCS. If your design includes bonded TX PCS channels, refer to Timing Constraints for Reset Signals when Using Bonded PCS Channels for a SDC constraint you must include in your design.

tx_analogreset[<n>-1:0]

Input

When asserted, resets all blocks in the TX PMA.

tx_cal_busy[<n>-1:0]

Output

When asserted, indicates that the initial TX calibration is in progress. It is also asserted if reconfiguration controller is reset. It will not be asserted if you manually re-trigger the calibration IP. You must hold the channel in reset until calibration completes.

rx_digitalreset[<n>-1:0]

Input

When asserted, resets the RX PCS.

rx_analogreset[<n>-1:0]

Input

When asserted, resets the RX CDR.

rx_cal_busy[<n>-1:0]

Output

When asserted, indicates that the initial RX calibration is in progress. It is also asserted if reconfiguration controller is reset. It will not be asserted if you manually re-trigger the calibration IP.