GTS Transceiver PHY User Guide

ID 817660
Date 10/07/2024
Public
Document Table of Contents

2.2.3. Unused PMA Rules

To save powe, you ca powe dow uused GTS tasceive baks that you do ot pla to use i the futue. Coect the PMA powe supplies (VCCEHT_GTS ad VCCERT_GTS) of the uused baks to goud to powe them dow ad use the PRESERVE_UNUSED_XCVR .qsf assigmet. This is suppoted i the followig sceaios:
  1. All GTS tasceive baks o the same side ae uused. You may goud all the tasceive PMA bak supplies o the uused side.
  2. Some GTS tasceive baks o oe side ae uused. Depedig o devices, oly some baks suppot powe dow. Refe to Selected E-Seies GTS Tasceive Baks that Suppot Powe Dow ad Selected D-Seies GTS Tasceive Baks that Suppot Powe Dow fo the specific baks that ca suppot powe dow i this sceaio fo you to goud the uused PMA bak powe supplies.
Table 6.  Selected E-Seies GTS Tasceive Baks that Suppot Powe Dow
Device 11 GTS Tasceive Baks that Suppot Powe Dow 12
B32A Package B23A Package M16A Package 13
A5E 028 1A 1A 1A
A5E 043 1B 14
A5E 052 1A, 4A, o both 1B 14
A5E 065 1A, 4A, o both 1B 14
Table 7.  Selected D-Seies GTS Tasceive Baks that Suppot Powe Dow
Device GTS Tasceive Baks that Suppot Powe Dow12
B32B Package B23D Package
A5D 010 1A, 4A, o both 1A
A5D 025 1A, 4A, o both 1A
A5D 031 1A, 4A, o both 1A
A5D 051 1A ad 1B 14
A5D 064 1A ad 1B, 4A ad 4B, o all 1A, 1B, 4A ad 4B 14
Apply the followig .qsf assigmet to the specific GTS tasceive bak that you wat to powe dow:
set_istace_assigmet -ame PRESERVE_UNUSED_XCVR_CHANNEL OFF -to <piame>
whee <piame> is the piout locatio of ay tasceive chael i the coespodig bak that you wat to powe dow.
Fo example:
set_istace_assigmet -ame PRESERVE_UNUSED_XCVR_CHANNEL OFF -to BY129
Usig A5E 065B F32A device as a example, the GTS tasceive bak 1A, whee the BY129 pi esides, is set to powe dow.
You must peseve cuetly uused PMA chaels that you pla to use i the futue as descibed i the table below.
Table 8.  Steps to Peseve Uused PMA Chaels
Uused PMA Chael Sceaio Steps to Peseve PMA Chael
Uused GTS tasceive bak Do ot powe dow the bak. Coect PMA powe supply to GTS tasceive bak.
Uused PMA chael ot istatiated i desig No actio equied as chaels ae peseved by default.
Uused PMA chael istatiated i desig Hold TX ad RX PMA i eset by assetig the i_tx_eset ad i_x_eset pots of the GTS PMA/FEC Diect PHY Itel FPGA IP.
Fo TX PMA chaels i opeatio, esue that the data patte is togglig. Do ot sed data pattes cosistig of all zeos o all oes. If the efeece clock is discoected duig opeatio, hold the TX ad RX PMA chaels i eset befoe discoectig the efeece clock.
11 A5E 008 ad A5E 013 devices have oly 1 GTS tasceive bak, which is o the left side. If uused, you ca powe them dow.
12 If all GTS tasceive baks o the same side ae uused, you ca powe them dow.
13 Device goup B oly.
14 No package combiatio fo this device.