5–42 Chapter 5: Clock Networks and PLLs in Cyclone IV Devices
Document Revision History
Cyclone IV Device Handbook, October 2012 Altera Corporation
Volume 1
Document Revision History
Tab le 5 –1 4 lists the revision history for this chapter.
Table 5–14. Document Revision History
Date Version Changes
October 2012 2.4
■ Updated “Manual Override” and “PLL Cascading” sections.
■ Updated Figure 5–9.
November 2011 2.3
■ Updated the “Dynamic Phase Shifting” section.
■ Updated Figure 5–26.
December 2010 2.2
■ Updated for the Quartus II software version 10.1 release.
■ Updated Figure 5–3 and Figure 5–10.
■ Updated “GCLK Network Clock Source Generation”, “PLLs in Cyclone IV Devices”,
and “Manual Override” sections.
■ Minor text edits.
July 2010 2.1
■ Updated Figure 5–2, Figure 5–3, Figure 5–4, and Figure 5–10.
■ Updated Table 5–1, Table 5–2, and Table 5–5.
■ Updated “Clock Feedback Modes” section.
February 2010 2.0
■ Added Cyclone IV E devices information for the Quartus II software version 9.1 SP1
release.
■ Updated “Clock Networks” section.
■ Updated Table 5–1 and Table 5–2.
■ Added Table 5–3.
■ Updated Figure 5–2, Figure 5–3, and Figure 5–9.
■ Added Figure 5–4 and Figure 5–10.
November 2009 1.0 Initial release.