User guide

Chapter 1: About This IP 1–9
Installation and Licensing
December 2010 Altera Corporation External Memory Interface Handbook Volume 3
Section II. DDR3 SDRAM Controller with ALTMEMPHY IP User Guide
Free Evaluation
Altera's OpenCore Plus evaluation feature is only applicable to the DDR3 SDRAM
HPC. With the OpenCore Plus evaluation feature, you can perform the following
actions:
■ Simulate the behavior of a megafunction (Altera MegaCore function or AMPP
SM
megafunction) within your system.
■ Verify the functionality of your design, as well as evaluate its size and speed
quickly and easily.
■ Generate time-limited device programming files for designs that include
MegaCore functions.
■ Program a device and verify your design in hardware.
You need to purchase a license for the megafunction only when you are completely
satisfied with its functionality and performance, and want to take your design to
production.
OpenCore Plus Time-Out Behavior
OpenCore Plus hardware evaluation can support the following two modes of
operation:
■ Untethered—the design runs for a limited time
■ Tethered—requires a connection between your board and the host computer. If
tethered mode is supported by all megafunctions in a design, the device can
operate for a longer time or indefinitely
All megafunctions in a device time-out simultaneously when the most restrictive
evaluation time is reached. If there is more than one megafunction in a design, a
specific megafunction's time-out behavior may be masked by the time-out behavior of
the other megafunctions.
1 For MegaCore functions, the untethered time-out is 1 hour; the tethered time-out
value is indefinite.
Your design stops working after the hardware evaluation time expires and the
local_ready output goes low.