F-Tile Triple-Speed Ethernet Intel® FPGA IP User Guide

ID 741328
Date 2/09/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

7.1.10.3. TBI Interface Signals

If the core variation does not include an embedded PMA, the PCS block provides a 62.5-MHz 2 ten-bit interface (TBI) to an external SERDES chip.
Table 81.  TBI Interface Signals for External SERDES Chip
Name I/O Description
tbi2x_tx_d[19:0] O 2X TBI transmit data. The PCS function transmits data on this bus synchronous to tbi2x_tx_clk.
tbi2x_tx_clk I 62.5-MHz TBI transmit clock from external SERDES, typically sourced by the local reference clock oscillator.
Note: If connected to the F-tile Transceiver PHY, this signal can be sourced from tx_clkout.
tbi2x_rx_clk I 62.5-MHz TBI receive clock from external SERDES, typically sourced by the clock recovered from the encoded serial data.
Note: If connected to the F-tile Transceiver PHY, this signal can be sourced from rx_clkout.
tbi2x_rx_d[19:0] I 2X TBI receive data. This bus carries the data from the external SERDES. Synchronize the bus with tbi2x_rx_clk.