FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
6259 Discussions

DDR3 dual-rank dual-slot pin assignment

Altera_Forum
Honored Contributor II
838 Views

Hello, 

 

I cannot figure out how to assign CS#, ODT and CKE pins in DDR3 dual-rank dual-slot configuration. 

 

I'm using Micron 8GB part - MT16JTF1G64HZ. It has two ranks and two slots, selected by S0# and S1# pins. Also, it has two bits of ODT and CKE. 

 

Megawizard generates 4-bit CS#, ODT and CKE busses for 2-slot and 2-rank configuration. No S0 or S1. 

I haven't found any documentation on how to connect those bits to the IOs. 

It seems to require some additional muxing logic to interface with the DIMM on board. 

 

 

Thanks, 

Evgeni
0 Kudos
0 Replies
Reply