Forum Discussion
Altera_Forum
Honored Contributor
12 years agoDDR3 HMC operation rate
Hi, I am confused about the DDR3 HMC operation rate of Cyclone V. The handbook says that "full rate designs might have difficulty in closing timing. Consequently,for high frequency memory in...
Altera_Forum
Honored Contributor
11 years ago --- Quote Start --- I also noticed these words. Does it mean high risk to use HMC in Cyclone V? Is there any solution to this? Thanks. --- Quote End --- It is low risk to use HMC in Cyclone V. The solution is to not operate the MPFE ports using the afi_clk. Instead, use a slower clock (perhaps afi_half_clk, or any other clock in your system).