Cyclone® V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683375
Date 10/18/2023
Public
Document Table of Contents

4.3. Clock Networks and PLLs in Cyclone® V Devices Revision History

Document Version Changes
2019.05.15 Corrected the PLL locations for Cyclone® V GX C3 Device.
2019.04.26
  • Corrected the signal name from clkswitch to extswitch.
  • Updated the description for the automatic switchover with manual override mode in the Clock Switchover section.
  • Updated the description about the extswitch signal in the Manual Clock Switchover section.
Date Version Changes
December 2017 2017.12.15
  • Updated the PLL Locations for Cyclone® V GX C3 Device diagram.
December 2016 2016.12.09 Added a note to dedicated refclk pin in Fractional PLL High-Level Block Diagram.
December 2015 2015.12.21 Changed instances of Quartus II to Quartus Prime.
June 2015 2015.06.12
  • Updated RCLK Networks in Cyclone® V SE, SX, and ST Devices diagram. Mentioned that RCLK network is not available in quadrant 2 for Cyclone® V SE A5 and A6 device, Cyclone® V ST D5 and D6 devices, and Cyclone® V SX C5 and C6 devices.
  • Added CLK pins connection to FRACTIONALPLL_X0_Y32 in PLL Locations for Cyclone® V E A7 Device, Cyclone® V GX C7 Device, and Cyclone® V GT D7 Device diagram.
January 2014 2014.01.10
  • Removed Preliminary tags for clock resources, clock input pin connections to GCLK and RCLK networks, and PLL features tables.
  • Updated clock resources table.
  • Updated GCLK, RCLK, and PCLK networks diagrams for Cyclone® V E, GX, and GT devices.
  • Added GCLK, RCLK, and PCLK networks diagrams for Cyclone® V SE, SX, and ST devices.
  • Added notes to dedicated clock input pin connectivity to GCLK and RCLK tables for Cyclone® V SE, ST, and SX devices.
  • Updated the following PLL locations diagrams:
    • Cyclone® V GX C3 device
    • Cyclone® V E A7 device, Cyclone® V GX C7 device, and Cyclone® V GT D7 device
  • Added the following PLL locations diagrams:
    • Cyclone® V SE A2 and A4 devices, and Cyclone® V SX C2 and C4 devices
    • Cyclone® V SE A5 and A6 devices, Cyclone® V SX C5 and C6 devices, and Cyclone® V ST D5 and D6 devices
  • Added information on PLL migration guidelines.
  • Updated VCO post-scale counter, K, to VCO post divider.
  • Added information on PLL cascading.
  • Updated information on external clock output support.
  • Added information on programmable phase shift.
  • Updated automatic clock switchover mode requirement.
May 2013 2013.05.06
  • Added link to the known document issues in the Knowledge Base.
  • Updated PCLK clock sources in hierarchical clock networks in each spine clock per quadrant diagram.
  • Added PCLK networks in clock network sources section.
  • Updated dedicated clock input pins in clock network sources section.
  • Added descriptions for PLLs located in a strip.
  • Added information on PLL physical counters.
  • Updated the fractional PLL architecture diagram to add dedicated refclk input port and connections.
  • Updated PLL support for EFB mode.
  • Updated the scaling factors for PLL output ports.
  • Updated the fractional value for PLL in fractional mode.
  • Moved all links to the Related Information section of respective topics for easy reference.
  • Reorganized content.
December 2012 2012.12.28
  • Added note to indicate that the figures shown are the top view of the silicon die.
  • Removed DPA support.
  • Updated clock resources table.
  • Updated diagrams for GCLK, RCLK, and PCLK networks.
  • Updated diagram for clock sources per quadrant.
  • Updated dual-regional clock region for Cyclone® V SoC devices support.
  • Restructured and updated tables for clock input pin connectivity to the GCLK and RCLK networks.
  • Added tables for clock input pin connectivity to the GCLK and RCLK networks for Cyclone® V SoC devices.
  • Updated PCLK control block diagram.
  • Updated information on clock power down.
  • Added diagram for PLL physical counter orientation.
  • Updated PLL locations diagrams.
  • Updated fractional PLL high-level block diagram.
  • Removed information on pfdena PLL control signal.
  • Removed information on PLL Compensation assignment in the Quartus II software.
  • Updated the fractional value for PLL in fractional mode.
  • Reorganized content and updated template.
June 2012 2.0
  • Restructured chapter.
  • Updated Figure 4–4, Figure 4–6, Figure 4–7, Figure 4–11, Figure 4–13, Figure 4–15, Figure 4–16, Figure 4–17, Figure 4–19, and Figure 4–20.
  • Updated Table 4–2, Table 4–3, and Table 4–5.
  • Added “Clock Regions”, “Clock Network Sources”, “Clock Output Connections”, “Clock Enable Signals”, “PLL Control Signals”, “Clock Multiplication and Division”, “Programmable Duty Cycle”, “Clock Switchover”, and “PLL Reconfiguration and Dynamic Phase Shift” sections.
February 2012 1.1 Updated Table 4–2.
October 2011 1.0 Initial release.