Intel® Arria® 10 Transceiver PHY User Guide

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ID 683617
Date 3/28/2022
Public
Document Table of Contents

3.12. PLLs and Clock Networks Revision History

Document Version Changes
2021.06.10 Added the PCS Bonding Channels Placement Restrictions section.
2021.01.29 Made the following change:
  • To implement fPLL to fPLL cascading, set the destination (downstream) fPLL bandwidth to Low.
2019.05.13 Made the following change:
  • Renamed Altera Debug Master Endpoint (ADME) to Native PHY DebugMaster Endpoint (NPDME).
2018.06.15 Made the following change:
  • For fPLL IP Core, added OTN_direct, SATA_Gen3 and HDMI to the range for Protocol Mode.
2017.11.06 Made the following changes:
  • Updated the "ATX PLL-to-ATX PLL Spacing Guidelines" section with GT channels information.
  • Added note "Sourcing reference clock from a cascaded PLL output, global clock or core clock network will introduce additional jitter to transmit PLL output. Refer to KDB "How do I compensate for the jitter of PLL cascading or non-dedicated clock path for Arria® 10 PLL reference clock?" for more details."
  • Added guidance for jitter compliance for data rates >10 Gbps in the following sections:
    • "fPLL"
    • "CMU PLL"
    • "Input Reference Clock Sources"
2016.10.31 Made the following change:
  • New section Unused/Idle Clock Line Requirements added.
2016.05.02
  • Updated ATX PLL, fPLL and CMU PLL parameters.
  • Updated ATX PLL and fPLL ports.
  • Added new parameters and ports when fPLL is used in core mode.
  • Provided additional details for ATX PLL and fPLL fractional mode usage in the "Delta Sigma Modulator" section.
  • Added a new section describing "ATX PLL multi-profile and embedded reconfiguration".
2016.02.11 Made the following changes:
  • Updated the optimal performance placement guidelines for ATX PLL VCO frequencies.
  • Updated placement recommendations for different protocols - OTU2e, OTU2, OC-192, 6G and 12G SDI.
  • Updated the "FPGA Fabric - Transceiver Interface Clocking" figure.
  • Updated the maximum data rate to 25.8 Gbps.
2015.12.18 Made the following changes:
  • Updated the “PLL Cascading” figure.
  • Updated the "Dedicated Reference Clock Pins" in the "Input Reference Clock Sources" section.
2015.11.02 Made the following changes:
  • Updated ATX PLL, CMU PLL and fPLL Configuration Options, Parameters and Settings.
  • Updated ATX PLL placement in figures and examples.
  • Clarified PLL to PLL cascade support.
  • Created TX PLL Recommendations based on datarates.
  • Updated ATX PLL, fPLL and CMU PLL Quartus settings.
  • Added details and figures for the fPLL driving the fabric use cases.
  • Updated PLL Feedback and Cascading Clock Network figure.
  • Updated steps to implement PLL cascading.
2015.05.11 Made the following changes:
  • Updated ATX PLL, CMU PLL and FPLL Configuration Options, Parameters and Settings.
  • Modified Transmit PLLs Data Rate Range in Arria 10 Devices.
  • Increased xN clock network channel span.
  • Added ATX PLL to fPLL cascading details.
2014.12.15 Made the following changes:
  • Added a note about PLL cascading support in ACDS 14.1 version of Quartus II software.
  • Corrected the minimum data rate supported by ATX PLL in Table: Transmit PLLs in Arria 10 Devices.
  • Corrected the error in PLL output frequency range for ATX PLL and CMU PLL IP cores.
  • Corrected the PLL reference clock frequency range for ATX PLL IP core.
  • Added a note about jitter performance in Input Reference Clock Sources section.
  • Updated the Mix and Match Design Example figure to indicate that MCGB is used in the example.
  • Changed the minimum data rate supported by the PLLs to 1 Gbps.
2014.08.15 Made the following changes:
  • Changed the maximum data rate for GT channels to 25.8 Gbps.
  • Changed figure "Arria 10 PLLs and Clock Networks" to indicate channel 0,1,3, and 5 have only the CDR PLL.
  • Updated figure "x1 Clock Lines" to indicate that the channel PLL of channel 1 and channel 4 can be used as CMU PLL or as a CDR.
  • Updated ATX PLL, fPLL, and CMU PLL section with a clarification about input reference clock frequency stability at device power-up.
  • Updated Instantiating ATX PLL, fPLL, and CMU PLL topics with new IP instantiation flow.
  • Updated ATX PLL and fPLL architecture block diagrams to show global clock or core clock as an input reference clock.
  • Updated ATX PLL IP section with 14.0 A10 release changes
    • Added fractional mode support.
    • Added embedded debug parameters in table ATX PLL Dynamic Reconfiguration.
  • Updated fPLL IP section with 14.0A10 release changes
    • Removed "fPLL -Clock Switch over Parameter and Settings" table.
    • Updated table "fPLL Parameter and Settings".
    • Added embedded debug parameters in table "fPLL - Dynamic Reconfiguration Parameters and Settings".
    • Removed Number of auxiliary MCGB clock input ports from fPLL IP parameters.
  • Added global clock or core clock as an input reference clock source.
  • Added a new section for Global Clock or Core Clock as an Input Reference Clock.
  • Updated figure "Input Reference Clock Sources".
  • Updated Dedicated Reference Clock Pins section "Dedicated Reference Clock Pins".
    • Added a connection to indicate that dedicated refclk pins can drive the reference clock network.
    • Removed a wrong connection from the diagram.
  • Updated xN Clock Lines section with maximum channel span limitations and added a exception for QPI protocols.
  • Added a new image in the FPGA Fabric-Transceiver Interface Clocking section.
  • Added a new section for Channel Bonding describing PMA bonding, PMA and PCS bonding in detail.
  • Removed xN Clock Network Data Rate Restrictions table.
  • Updated chapter to indicate Arria 10 Transceivers support fPLL to fPLL, fPLL to ATX PLL, and fPLL to CMU PLL cascading.
  • Updated Using PLLs and Clock Networks section
    • Changed MegaWizard references to IP Catalog and Parameter Editor.
    • Updated the valid configurations for PLL IP and Native PHY IP per 14.0A10 release change.
  • Removed Table "xN Clock Network Data Rate Restrictions".
  • Updated the chapter to indicate Arria 10 transceivers support to fPLL to fPLL, fPLL to ATX PLL, and fPLL to CMU PLL cascading.
2013.12.02 Initial release.

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