EP2S90F1020C5 Datasheet, PDF (356/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

Document Revision History
Document
Table 1–25 shows the revision history for this chapter.
Revision History
Table 1–25. Document Revision History (Part 1 of 2)
Date and
Document
Version
Changes Made
Summary of Changes
July 2009,
v4.6
● Updated “Manual Override”, “Manual Clock Switchover”,
and “Spread-Spectrum Clocking” sections.
● Updated notes to Figure 1–20 and Figure 1–24.
● Both inclk0 and inclk1
must be running when the
clkswitch signal goes
high to initiate a manual
clock switchover.
● Updated the spread
spectrum modulation
frequency from
(100 kHz–500 kHz) to
(30 kHz–150 kHz).
January 2008, Updated “External Clock Outputs” section.
—
v4.5
Added the “Referenced Documents” section.
—
Minor text edits.
—
No change
For the Stratix II GX Device Handbook only:
—
Formerly chapter 6. The chapter number changed due to the
addition of the Stratix II GX Dynamic Reconfiguration chapter.
No content change.
May 2007,
Updated Table 7–6.
—
v4.4
Updated notes to:
—
● Figure 7–7
● Figure 7–47
● Figure 7–48
● Figure 7–49
● Figure 7–50
● Figure 7–51
Updated the “Clock Source Control For Enhanced PLLs” sec-
—
tion.
Updated the “Clock Source Control for Fast PLLs” section.
—
February 2007 Added “Document Revision History” section to this chapter.
—
v4.3
Deleted paragraph beginning with “The Stratix II GX PLLs
—
have the ability...” in the “Enhanced Lock Detect Circuit” sec-
tion.
April 2006,
Chapter updated as part of the Stratix II Device Handbook up-
—
v4.2
date.
No change
Formerly chapter 5. Chapter number change only due to chap-
—
ter addition to Section I in February 2006; no content change.
1–92
Stratix II Device Handbook, Volume 2
Altera Corporation
July 2009