Altera DDR Timing Wizard - Manual (Page 30)

2–18 Altera Corporation
DDR Timing Wizard User Guide November 2007
Entering and Editing Inputs to the DTW
Figure 2–11. Specify DQS Pins
You can either manually enter each of the DQS pin names, or click on
the Browse (...) button to open the Node Name Browser
(
Figure 2–12 ).
1
If you are using the Altera DDR/DDR2 SDRAM controller,
the default names for the pins have ddr or ddr2 prefixes.
You can change the prefix in the DDR/DDR2 SDRAM
legacy controller MegaWizard. The default prefixes for
QDRII+/QDRII SRAM and RLDRAM II interfaces are
qdrii
and rldramii, respectively.
1
If your design is large, browsing for a node name may be
very labor-intensive. Manually enter the pin names
whenever possible.
If you followed the recommended flow, you should have already
performed Analysis and Synthesis on the design, when
auto_add_ddr_constraints.tcl
script was run. If so, the Quartus II
software will list all of the pin names, as shown in Figure 2–12 .
Browse