Altera DDR Timing Wizard User Manual

Page 36

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2–24

Altera Corporation

DDR Timing Wizard User Guide

November 2007

Entering and Editing Inputs to the DTW

10. Identify the address and control pins. The sample list of the address

and control pins for a DDR2 SDRAM interface is shown in

Figure 2–18

.

Figure 2–18. Sample Page of Filled Address and Control Pins Page

Click Next.

11. When the DTW has all of the pin connectivity information, set up

the design resynchronization clocking scheme as shown in

Figure 2–19

, which uses the legacy controller MegaWizard default

name clock selection.

1

The clock input frequency, multiplication, division, phase
shifts, and clock cycle selection differ from design to design.

1

The resynchronization page selection for QDRII+/QDRII
SRAM and RLDRAM II interfaces do not have any clock
cycle or phase shift selections. You can also indicate that
you are using a FIFO for resynchronization in these
interfaces.

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