altdqs Altera® IP

Parameterized bidirectional data strobe Altera® IP. The altdqs Altera® IP generates a group of DQS pins used to strobe read/write data in external DDR/FCRAM memory interfaces. The group of DQS pins use a common DLL to phase shift the read strobe. The altdqs Altera® IP implements one DLL and a number of user-specified DQS pins on one side of the device. The maximum number of DQS supported by a DLL depends on the device. The altdqs Altera® IP is available for Cyclone® IV devices.

Altera recommends instantiating this function with the IP Catalog.

Note:
  • For this Altera® IP, the IP Catalog generates output files with multiple entities or modules. The top-level entity or module is located at the bottom of the file.
  • To interface with the p and n-pins, you can instantiate your altdqs Altera® IP then instantiate an I/O buffer Altera® IP.
  • When you create your Altera® IP, you can use the IP Catalog togenerate a netlist for third-party synthesis tools.
Note: More information is available on the altdqs Altera® IP on the Altera website.