Altera External Memory PHY Interface - Manual (Page 47)

Chapter 3: Functional Description—ALTMEMPHY (nonAFI) 3–31
Functional Simulation—the ModelSim Wave and Transcript Window
© January 2010 Altera Corporation External Memory PHY Interface (ALTMEMPHY) (nonAFI) Megafunction User Guide
Write Training Data Stage
As shown in Figure 3–8 on page 3–32 , following memory initialization, the write data
training stage is closely followed by the first read data calibration read sample.