Sign In

Don't have a Xilinx account yet?

  • Choose to receive important news and product information
  • Gain access to special content
  • Personalize your web experience on Xilinx.com

Create Account

Username

Password

Forgot your password?
XClose Panel
Xilinx Home
Reply
Regular Visitor
jpnaude
Posts: 37
Registered: ‎03-18-2009
0
Accepted Solution

UG406 Ambiguities (Virtex-6 FPGA Memory Interface Solutions)

Hi 

 

The description for the QDRII+ SRAM memory's client side interface is ambiguous. I'm referring to UG406 (March 1, 2011).

 

On page 188, under the Command Request Signals paragraph, the third sentence states:

 

"To accommodate for burst length 4 devices, the client interface contains ports for two read and two write transactions. When using burst length 4, only the ports ending in 0 should be used."

 

The two sentences contradict each other. The first suggests that the ports ending in 1 were added to accomodate burst length 4 devices, but the next sentence says the opposite.

 

Thus, we are uncertain if we must use ports ending with 0 and 1 for a burst length 4 controller, of just ports ending in 0. If anyone can clarify this it would be great.

 

Thanks,

Jaco

Regular Visitor
jpnaude
Posts: 37
Registered: ‎03-18-2009
0

Re: UG406 Ambiguities (Virtex-6 FPGA Memory Interface Solutions)