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Altera_Forum
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16 years ago

DDR input without DPA in Arria II GX

Hello I am using arria ii gx to communicate with a high speed device. The device is sending DDR data, data with a data clock, dclk. dclk and data are source synchronous. I need to capture the d...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hello

IDELAY does allow delay settings at runtime; I have used it myself.

According to the Arria II datasheet, the PLL input frequency is 5-500 MHz .. the memories can goto upto 390 MHz .. The lvds inputs can easily swictch at 1 GHz .. so arria ii gx can be used to communicate with 1G device ..

The only thing to figure out is what is the best way to do it (with the ability to adjust skew between ddr data and clock at run time) ..

All suggestions are welcome