F-Tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 11/04/2024
Public
Document Table of Contents

3.4.5. Custom Cadence Control and Status Signals

Table 50.  Custom Cadece Cotol ad Status Sigals
Sigal Name Clocks Domai/Resets Diectio Desciptio
tx_cadece

tx_cadece_fast_clk

tx_eset

output Idicates the ate at which data_valid pi must be asseted ad deasseted whe the system is uig at a highe clock ate tha the PMA wod/bod clock. Use this sigal to asset ad de-asset the TX PMA Iteface data valid bit whe custom cadece geeatio pots ad logic is eabled. Refe to Paallel Data Mappig Ifomatio.
tx_cadece_fast_clk N/A iput Fast clock iput fo tx_cadece geeato. Use this as the system clock withi F-tile (o use (system clock)/2 whe Coe Iteface is i double width mode). Refe to Custom Cadece Geeatio Pots ad Logic.
tx_cadece_slow_clk N/A iput Slow clock iput fo tx_cadece geeato. Use this clock as the PMA wod/bod clock (o (PMA wod/bod clock)/2 whe Coe Iteface is i double width mode). Refe to Custom Cadece Geeatio Pots ad Logic.
tx_cadece_slow_clk_locked N/A iput By default, CCG logic assumes tx_cadece_slow_clk_locked is comig fom TX PLL, ad uses tx_pll_locked to deasset CGG logic eset. Howeve, if tx_cadece_slow_clk is ot diectly comig fom the TX PLL wod clock/bod clock/use clock), but athe comes fom othe clock souce, the you must tu o the tx_cadece_slow_clk_locked pot optio i the paamete edito. tx_cadece_slow_clk_locked must be dive by the PLL locked output of the othe clock souce used fo slow clock.