Altera ALTDQ_DQS2 - Manual (Page 78)

Figure 45: ALTDQ_DQS2 Parameter Settings for Arria V Devices
5. Click Finish.
Note: Because your design requires bidirectional strobe, you must use the DQS enable block by
turning on the Make capture strobe bidirectional. In such case, the timing of the capture
strobe enable block requires knowledge of the arrival time of the capture strobe which typically
requires round-trip delay information. However, the use of the DQS enable block requires
runtime calibration which is not a feature of the ALTDQ_DQS2 IP core.
Instantiating the ALTDLL IP Core
To instantiate the ALTDLL IP core, follow these steps:
1. In the IP Catalog (Tools > IP Catalog), locate and double-click the name of the IP core to customize.
The parameter editor appears.
2. Specify a top-level name for your custom IP variation. This name identifies the IP core variation files
in your project. If prompted, also specify the target Altera device family and output file HDL
preference. Click OK.
3. On the Parameter Settings tab, on the General page, specify the parameters as shown in the following
figure.
78 Instantiating the ALTDLL IP Core
UG-01089
2014.12.17
Altera Corporation ALTDQ_DQS2 IP Core User Guide
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