FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5990 Discussions

the refresh action of ddr2 hpc ii controller ?

Honored Contributor II

when i setup the ddr2 ip megawizard ,i select hpc ii ,and i select "Enalbe User Auto_refresh Control" selection too,and there three signals are producted ,those are local_refresh_req ,local_refresh_ack,local_refresh_chip,but in the example of the ddr2 ip ,local_refresh_req and local_refresh_chip are assigned to 1'b0, 

in this situation , the ddr2 can be refreshed or not? 


i can write to and read from the ddr2,but i am puzzled,  

I think the data should be lost because the ddr2 is not be refresh,  

is the ddr2 chip refreshed or not? 

can anybody tell me ?
0 Kudos
0 Replies