Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Quartus II_Version 13.0- --RAM Megafunction- Timing Issue

I am using mega function wizard to generate a two port RAM for my design. Please see the attached picture of the 2-port RAM that I generated. When I simulate it, I give my address input on the...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

You can see in the picture that you posted that the RAM is configured with both the inputs and outputs registered (see the little flip-flop symbols driven by the clock). This explains your 2-clock delay. I believe the input registers are always there, but the output registers are optional. Walk through the settings in the Megawizard and you should see a check box that will allow you to eliminate the output registers.