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Altera_Forum's avatar
Altera_Forum
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14 years ago

burst count

Hi,everybody Will you please explain what's the "Local maximum burst count" meaning in the DDR IP Controller setttings? If I don't use the avalon-bus ,can I use the burst count function? ...
Altera_Forum's avatar
Altera_Forum
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14 years ago

It's the burst count associated to the local side (the part you interface with in your logic). A burst of greater than 1 means you are performing back to back accesses by issuing a single address and providing data for multiple beats (words) of data. The controllers are now able to accept small bursts or non-burst (burst length = 1) transactions and form bursts off-chip to the SDRAM to ensure the interface is being used efficiently.

I never use that controller in non-Avalon mode but I'm certain you can still use the burst signal since it's a fundamental signal for achieving higher memory performance.