Altera ALTDLL - Manual (Page 86)

Chapter 4: Functional Description 4–50
Design Example: Implementing Half-Rate DDR2 Interface in Stratix III Devices
© February 2012 Altera Corporation ALTDLL and ALTDQ_DQS Megafunctions User Guide
7. On the DLL Offset Controls/Optional Ports page, specify the parameters as
shown in Table 4–25 .
8. Click Finish.
1 When you are prompted to add the Quartus II IP file (.qip) to your project, click Yes.
The ALTDLL instance is now generated.
9. Browse to your working directory and open the input.txt file.
10. Change the value of the CBX_OUTPUT_DIRECTORY parameter to the path of your
working directory.
11. Save the file.
12. Copy the input.txt file to the \quartus\bin\ directory.
DLL Phase Offset Control A
Instantiate dll_offset_control block
Turned off
DLL Phase Offset Control B
Instantiate dll_offset_control block
Turned off
Optional Ports
Create a dll_aload port
Turned off
Optional Ports
Create a dll_dqsupdate port
Turned off
Table 4–25. ALTDLL Parameter Settings/DLL Offset Controls/Optional Ports Settings
Settings Value
DLL Phase Offset Control A
Instantiate dll_offset_control block
Turned off
DLL Phase Offset Control B
Instantiate dll_offset_control block
Turned off
Optional Ports
Create a dll_aload port
Turned off
Optional Ports
Create a dll_dqsupdate port
Turned off
Table 4–24. General Settings (Part 2 of 2)
Settings Value