F-Tile 1G/2.5G/5G/10G Multirate Ethernet PHY Intel® FPGA IP User Guide

ID 720989
Date 11/29/2023
Public
Document Table of Contents

6.2. Reset Signals

Table 16.   Reset Signals
Signal Name Direction Width Description
reset Input 1 Active-high global reset. Assert this signal to trigger an asynchronous global reset.
tx_digitalreset Input 1 Active-high signal. When asserted, triggers an asynchronous reset to the digital logic on the TX path.
rx_digitalreset Input 1 Active-high signal. When asserted, triggers an asynchronous reset to the digital logic on the RX path.
i_reconfig_reset Input 1 Active-high reconfiguration reset signal. Reset the entire reconfiguration clock domain, including the soft registers (CSRs). You must assert this reset after power-on or during the configuration. The i_reconfig_clk signal must be stable before deasserting this reset.
i_rst_n Input 1

Active-low asynchronous reset signal. Do not deassert until o_rst_ack_n deasserts.

  • Resets the TX interface, including the TX PCS.
  • Resets the RX interface, including the RX PCS.
  • Resets the TX PMA and TX EMIB.
  • Resets the RX PMA and RX EMIB.

This reset leads to assertion of the o_rst_ack_n output signal.

o_rst_ack_n Output 1 Active-low asynchronous acknowledgment signal for the i_rst_n reset.

Do not deassert the i_rst_n reset until the o_rst_ack_n asserts.

i_tx_rst_n Input 1 Active-low asynchronous reset signal.

Resets the entire TX datapath, including the TX PCS, TX PMA, and TX EMIB. Do not deassert until the o_tx_rst_ack_n asserts.

o_tx_rst_ack_n Output 1 Active-low asynchronous acknowledgment signal for the i_tx_rst_n reset.

Do not deassert the i_tx_rst_n reset until o_tx_rst_ack_n asserts.

i_rx_rst_n Input 1 Active-low asynchronous reset signal.

Resets the entire RX datapath, including the RX PCS, RX PMA, and RX EMIB. Do not deassert until o_rx_rst_ack_n asserts.

o_rx_rst_ack_n Output 1 Active-low asynchronous acknowledgment signal for the i_rx_rst_n reset.

Do not deassert the i_rx_rst_n reset until o_rx_rst_ack_n asserts.