Altera External Memory PHY Interface - Manual (Page 8)

2–2 Chapter 2: Parameter Settings
External Memory PHY Interface (ALTMEMPHY) (nonAFI) Megafunction User Guide © January 2010 Altera Corporation
The text window at the bottom of the MegaWizard Plug-In Manager displays
information about the memory interface, warnings (for example, if you are creating
an interface above the maximum frequency supported), and errors if you are trying to
create something that is not supported. The Finish button is disabled until you fix all
the errors indicated in this window.
The following section describes the Memory Settings tab for QDR II+/QDR II SRAM
interface in more detail.
Memory Settings
In the Memory Settings tab, you can choose the frequency of operation for the device
and a particular memory device for your system. Under General Settings, you can
choose the device family, speed grade, and clock information. In the middle of the
page (left-side), you can filter the available memory device listed on the right side of
the Memory Presets dialog box, refer to
Figure 2–1 . If you cannot find the exact device
that you are using, choose a device that has the closest specifications, then manually
modify the parameters to match your actual device by clicking Modify parameters,
next to the Selected memory preset field.
Figure 2–1. ALTMEMPHY Parameter Settings Page