8–80 Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Document Revision History
Cyclone IV Device Handbook, May 2013 Altera Corporation
Volume 1
1 The user watchdog timer is disabled in factory configurations and during the
configuration cycle of the application configuration. It is enabled after the application
configuration enters user mode.
Quartus II Software Support
Implementation in your design requires a remote system upgrade interface between
the Cyclone IV device logic array and remote system upgrade circuitry. You must also
generate configuration files for production and remote programming of the system
configuration memory. The Quartus II software provides these features.
The two implementation options, ALTREMOTE_UPDATE megafunction and remote
system upgrade atom, are for the interface between the remote system upgrade
circuitry and the device logic array interface. Using the megafunction block instead of
creating your own logic saves design time and offers more efficient logic synthesis
and device implementation.
f For more information about the ALTREMOTE_UPDATE megafunction, refer to the
Remote Update Circuitry (ALTREMOTE_UPDATE) Megafunction User Guide.
Document Revision History
Tab le 8 –2 8 lists the revision history for this chapter.
Table 8–28. Document Revision History (Part 1 of 2)
Date Version Changes
May 2013 1.7
■ Added Table 8–6.
■ Updated Table 8–9 to add new device options and packages.
■ Updated Figure 8–16 and Figure 8–22 to include user mode.
■ Updated the “Dedicated” column for DATA[0] and DCLK in Table 8–19.
■ Updated the “User Mode” and “Pin Type” columns for DCLK in Table 8–20.
February 2013 1.6 Updated Table 8–9 to add new device options and packages.
October 2012 1.5
■ Updated “AP Configuration Supported Flash Memories”, “Configuration Data
Decompression”, and “Overriding the Internal Oscillator” sections.
■ Updated Figure 8–3, Figure 8–4, Figure 8–5, Figure 8–7, Figure 8–8, Figure 8–9,
Figure 8–10, and Figure 8–11.
■ Updated Table 8–2, Table 8–8, Table 8–12, Table 8–13, Table 8–18, and Table 8–19.
November 2011 1.4
■ Added information about how to gain control of EPCS pins.
■ Updated “Reset”, “Single-Device AS Configuration”, “Single-Device AP
Configuration”, and “Overriding the Internal Oscillator” sections.
■ Added Table 8–7.
■ Updated Table 8–6 and Table 8–19.
■ Updated Figure 8–3, Figure 8–4, and Figure 8–5.
December 2010 1.3
■ Updated for the Quartus II software version 10.1 release.
■ Added Cyclone IV E new device package information.
■ Updated Table 8–7, Table 8–10, and Table 8–11.
■ Minor text edits.
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