Changing the clock rate on the fly to the same port in Fullflex DPRAMs

Question: Is it possible to change the clock rate on the fly to the same port in Fullflex DPRAMs? (For example, Is it possible to write to the memory using one clock rate, and then read from the same memory at a different clock rate to the same port?)

 

Answer:

 

1. If DLL is ON (LowSPD# pins connected to logic '1'), the clock rate cannot be changed on the fly.
2. If the DLL is disabled (LowSPD# pins connected to logic '0') , then the clock rate can be changed on the fly.