EDN

Implementing custom DDR and DDR2 SDRAM external memory interfaces in FPGAs (part 2)

Note: This is the second part of a two-part article covers the remaining steps to implement DDR or DDR2 external memory interfaces (EMIFs) using FPGAs via ALTDLL and ALTDQ_DQS megafunctions. Steps 4 ” ...
Hexus

DDR and DDR2 Explained

In this article we will be exploring the differences between DDR memory and DDR2 memory and also explaining a bit about the technology behind the two. Firstly, DDR stands for Dual Data Rate and is the ...
PC Magazine

DDR vs. DDR2 vs. DDR3: Types Of RAM Explained

Shopping for most kinds of computer hardware is easy. If you pay even basic attention to the industry you're not going to have too much trouble following individual trends and understanding the basic ...
EDN

Implementing custom DDR and DDR2 SDRAM external memory interfaces in FPGAs (part 1)

These design guidelines provide the best practices for DDR and DDR2 SDRAM custom memory interface implementation in Stratix III and Stratix IV FPGAs. Figure 1 shows the design flow that is required ...