Dear All,
No one has never used UDIMM DDR3 with C665x as per SPRABI1A?
I would be sure this is well opterating and I am not sure how to accomodate the two CLKOUT and 36 data bus with 240 pinout UDIMM.
There are rules to accomodate the C665x DDR3 bus with these UDIMM module?
If somone can reply the question, Thanks Ivan
Hi Ivan,
We did use a single-rank 240pin UDIMM module on our silicon verification platform for the C665x. For single-rank DIMM modules, only DDRCLKOUT0P/N is used. We connected the DDRD0-31 to the DQ0-31 pinsand connected DDRCB0-3 to the CB0-3 pins of the UDIMM connector. All address and command pins need to be connected as well. All routing rules should be followed between the C665x and the UDIMM connector. Note that UDIMMs are designed for 64bit data bus access and you are wasting half of the memory capacity.
Regards, Bill
