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

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

4.6.2. How to Read the Real-Time Lock Status of the FHT Lane TX PLL

Sice the tx_pll_locked sigal fo the FHT TX PLL povides eithe a sticky idicatio of the PLL’s lock state, o i the pesece of a efeece clock, afte appoximately 150 µs, it is ecessay to use the ecofig_xcv Avalo® Memoy-Mapped bus i ode to obtai a eal-time idicatio of the lock state of the Lae TX PLL. I ode to ead the eal-time lock state of the Lae TX PLL, ead locatios o the ecofig_xcv Avalo® Memoy-Mapped bus as show i the followig table. The locatio is chael-specific ad the addess offset is subject to the ules outlied i sectio Cofiguatio Registes . A value of 1’b1 idicates that the lae TX PLL is locked to the efeece clock.
Table 104.  FHT Lae TX PLL Avalo® Memoy-Mapped Addess
FHT Chael Addess ad Bit
0 0x4488C[2]
1 0x4C88C[2]
2 0x5488C[2]
3 0x5C88C[2]