EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 360

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

Remote System Upgrade With Cyclone III Devices
Quartus II
Software
Support
Conclusion
12–20
Cyclone III Device Handbook, Volume 1
f
Implementation in your design requires a remote system upgrade
interface between the Cyclone III device logic array and remote system
upgrade circuitry. You also need to 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.
altremote_update Megafunction
The altremote_update megafunction provides a memory-like
interface to the remote system upgrade circuitry and handles the shift
register read/write protocol in Cyclone III device logic. This
implementation is suitable for designs that implement the factory
configuration functions using a Nios II processor in the device.
For more information on the altremote_update megafunction for
Cyclone III devices, please contact Altera Technical Support from the
Altera® web site at www.altera.com/mysupport.
Remote System Upgrade Atom
The remote system upgrade atom is a WYSIWYG atom or primitive that
can be instantiated in your design. The primitive is used to access the
remote system upgrade shift register, logic array reset, and watchdog
timer reset signals. The ports on this primitive are the same as those listed
in
implement the factory configuration functions using state machines
(without a processor).
Cyclone III devices offer remote system upgrade capability, where you
can upgrade a system in real-time through any network. Remote system
upgrade helps to deliver feature enhancements and bug fixes without
costly recalls, reduces time to market, and extends product life cycles. The
dedicated remote system upgrade circuitry in Cyclone III devices
provides error detection, recovery, and status information to ensure
reliable reconfiguration.
Table
12–11. This implementation is suitable for designs that
Altera Corporation-Preliminary
March 2007